Exploration du Parc National de la Garamba

INSTITUT DES PARCS NATIONAUX DU CONGO ET DU RWANDA
PUBLlt AVEC LE CONCOURS DE L'INSTITUT BELGE
POUR L'ENCOURAGEMENT DE LA RECHERCHE SCIENTIFIQUE OUTRE-MER
( I.B.E.R.S.O.M.)
Exploration du Parc National de la Garamba
MISSION H. DE SAEGER
en collaboration avec
P. BAERT, G. DE MOULIN,
1. DENISOFF, J. MARTIN, M. MICHA, A. NOIRFALlSE,
P. SCHOEMAKER, G. TROUPIN et 1. VERSCHUREN (1949-1952).
FASCICULE 34
ACA RI
II.
F'llll.
ACEOSEJ 1DAE
DY
GERALD
Vi. KfL\NTZ (Col'\allis)
*
BRUXELLES
1962
PA
P. E
l"i
jidac
PilI'k
all'ea
Lhe !
EVA~
(V
1r. 1)
(:
l'
I~ep
L·nl~
si if{[
lM P R lM E RIE H A Y E Z. S.p.T.!.
112. rue de Louvain. 112. Bruxelles 1
nér"n!: ]If. Hayez. av. de l'Horizon. 39
Bruxelles 15
stig
(Nal
PARC NATIONAL DE LA GARAMBA. -
MISSION H. DE SAEGER
en collaboration avec
P. BAERT, G. DEMOULIN, 1. DENISOFF, J. MARTIN, M. MICHA, A. NOIRFALISE, P. SCHOEMAKER,
G. TROUPIN et J. VERSCHUREN (1949-1952)
Fascicule 34
ACARI
llY
GERALD
W. KRANTZ (Corval1is, Oregon)
FREE·L1VING
II. -
iUliSOSTlGlYIATA.
THE FAMILY \CEOSEJID \E (1) eJ.
Fifteen species of mites l'epl'esenting seven genera in the family Aceose­
jidae have been identified by the iluthor in samples fl'Om Garamba National
r ilrk. Descriptions of new genera and species and references to species
all'eady kno,vn ilre ine.! uded in the text. Aside fr'OITI ,1 few minor changes,
the subfamilial ilnd generic concepts set fol'th by EVANS (1958) Cl) and
EVANS and HYATT (1960) (l) have been uLilized in this review.
(1) The species herein described al'e fl'om the
I-f. DE SAEGER to Garamba National ParI< ((!HO-I05:?).
collection
(') The following citation is that of the first paper in this
of
the
Mission
eries:
Kn,\\TZ, G. ·W., 10G1, Free-living Mesost igmala. from Gar'amM 1'\al ional Park, Congo
Hepublie. 1: Two new genera of .\lac/'ochcticlac (Ann. Mus. floy. Congo cl fluancla­
Unmcli, Fase. 24: 3-13).
(3) EVANS, G. O., ]958, A revision of tlie nritisli .,lccoscjinac (.-\cal'ina: i\lesu­
sligmala) [Pmc. Zool, Sor. l',ondoH, Lll 1.2) : 1ïï-22'l].
('1) EVA\.', G, O. and K. Il. IlYATT, j~IGO, A l'evisiOl: uf 1Iie Plaly.<eiinae (i\I('~o­
sligmala : flceosejiclae) based on ma(prial in lhlé eoller,lions of the 13r.ilish i\!useum
(NaturaJ Histol'Y) [Bull. Rril. iI1ti~, (Sai. 7lisl.). G (2) : 27-101].
PAH.C NATIONAL
4
DE
I.A GARAMBA
i\. K
Falllily ACEOSEJIDAE
B,\KEIl
and
'iVUAIlTUX,
1952.
Dol'. al shield enLiee, "lith Ol' without lateral incision" and \viLh Lhl'ee
Ol' four longitudinal J.'ows of simple Ol' omamented seLile. Stel'nal shield
of fernale with thl'ee (rarely two) pail's of seLae, a posteriody truncate
epigynial shield with or without a pelir of setae, and an anal or venLr'ianal
shield with val'ying nurnbel's of pl'eanal setae. Metasternal shields presenL
Ul' absent. Males l.ypically with separate sterniti-geniLal and ventrianal
shields. Chelicerae toothed; male with « spermatophOf'enLràger" on
novable digit. PalpaI claw two-tined. Legs 1 with or 'without ambulacra;
legs II of male unarmed. Free-living species commonly found in forest
lilLer, rnoss, eLc.
Type species
1. Plisil
serie:
J \JsLc
J seL
2, SelitE
digit
SeLae
c/Ol'Sil
cc/en l
LaSLoseùlS muricalus KOCH (1839).
***
3. Dorst
lengt
notch
EVANS (Hl57) organizecl the A.ceosejidae into twu subfamilies based on
11l0l'phological chal'actel's used in the following key :
1. Bost,rul seLue and inLernaI seLae on palpLrochanLel' long, whip-like;
tal'si II and III, and often IV provided \-vith a pair of long lanceolate
setne usuillly inCUl'ved disLally; para-arlHI seLae ofLen situüLed in lille
wiLh the posLel'ior margin of the anus al' considerably posLel'iol' to the
anus; peritremaLal shield may exLencl beyond the posLel'ior mal'gin of
c()xae IV und lhe periLreme lTmy be developed posteriol' to the stigmu;
meclian lobe of pulvillus of legs II-IV often lunceolaLe
.
DOI'Se
Lhe cl
4. Dorst,
ilI'eas
(fig.
separ'
DClI'sl
inser!
PLATYS/,','UNAL.
H.ostl'al seLae and internaI selile on palptrochantel' nevel' long [lnd whip­
jike; tarsi II-IV without speciaJized setae; pel'itreme ünd peritrematal
shield normal; paru-anal seLae nOl'mal in posiLion; pulvillus nevel'
tanceolaLe...
,.............
..
ACEOSEJl:VAE.
In Lhe com, e of this study, excepLion' la some of EVANs'key characters
have heen noLed. These exceptions 'will be menLioned under the specific
descl'iplions where lhey OCCLU',
5,
WiLh
WiLh
sub-ci
6, Venh'
SI ino'
Venll'
Lhl'E'e
PARC NATIONAL DE LA
A
KI~Y
GARA!VIUA
5
1'0 THE GENER AND 8PECŒS OF PLATYSEIlNrlE
COLLECTED BY THE MISSION H. DE SAEGELl
1'0 GARAMBA PARK, CONGO (1949-1952).
1. 1'ùsteriol' portion of dorsal shield with five pairs of seLae in the J
series (fig. 23)
........................................................................2
PosLerior
J setae
portion
..
of
dOl'sal
shield
,viLh
.
less
LhiLn five pairs uf
,.................... 5
2. SeLae of posterior dorSèll shield expandecl and pectinaLe distally; fixecl
digit of ehelicera dentate throughout ist length ... FlYATTELLA n. gen.
Hyattella epicrioides n. st'.
8eLae of posterior dorsal shield simple, or vvith some of the posLer'ior
dorsal setae pecLinaLe buL not expanded disLally; fixed digit of cheticera
edenLate ]1roximully
SEJUS KOCH. 3
:3. Dorsal shielcl sLrongly crenulaLe-l'eLiculiüe; setae J.! less Lhan half Lhe
lengLh of the distance between the insertions of setae J,\. and J 5 ; vertex
nolehed medially
Sejus cren1.llat1.ls n. sp.
Dùrséll sh ield ornilmen Led other Lha n above; setae J,. longer than half
Lhe distance between seLae
and J,; vertex weIl developed ........ Il
r,
11.
DOl'sal pattern consisLing of sLl'Ong reticulation, with the mediolateral
areas of the shield divided transversely inLo four indistinct sections
(fig. 18); seLae J, exLending beyond inserlions of Jo; vertical setae
sepi.lrated by a disLance equal Lo thaL of the width of Lhe seLae ., .......
Sejns 1cenncdyi EVANS and HYATT.
Dorsu m reticulated as illusLrnted; vertical setae widely separuLed unel
inserled on two well-eleveloped lobes
Scjus lobatus n. sp.
5. \Vith three
01'
four pairs of J selae (fig. 13); icliosoma elongate
PLESlOSEJUS EVANS and HYATT.
f'lesiosejus berlesei n. s p.
\JVith only Lwù pairs of setae in the J series (J,. ar~d J.:J; idiosol1la
sub-circular or' pyrifonn in outline
PL.4.TYSEIUS BERLESE. 6
6. Ventrianal shield fused lutel'ally and posteriody to dorsal shield, vvithout"
srinose seLae;-'eLae j 3 and i 4. of neal'ly equal length (fig. 11)
.
Platyscius congoensis n. sp.
Ventrianal shield rounded lalernl1y, not fused to dorsal shielel; with
lhl'ee pa il", of sLl'ongly spi nose posLana l selae ...... ,..
........... , ....
Plfltyseius spinnsus EVANS and HYATT.
PARC NATIONAL DE I.A GARAMBA
6
Potchel
Acarolc
Oregon
Gemis HYATTELLA n. gen.
Dorsal shield entire, without incisions; postel'ior porlion of shield with
fi fLeen pairs of pectinn Le, d isLally expanded setae. Vertical setae wel!
developed. Prestemal shields presenL. Pulvillar lobes roundec1.
T Y P e s P e cie s : HYl/lIclla epicrinù/es n. sp.
Hyattella epicrioides
Il.
MonoLypic.
The
nopsis,
ornamE
seLlIe, '
sp.
(Figs. H.)
1" e mal e : Length of idiosoma averages 570 fJ., "vilh a range of 555-587 il.;
width of idiosoma at level of coxae IV averages 379 fJ., with a range of
3i6-385 /-'. \Vith the charactel's of the genus. Dorsal shield tuberculnle­
l'eticulate, l'esembling Lhe (;onc1iLion commonly found in lhe family Epicrii­
clac; laLeral and posLerior nlnrgins of shield scalloped as illustrated (fig. /1).
Slemal shield wilh reliculaLe pattern (fig. 1) and three pairs of setae; meta­
sternal shields frec. Epigyniul shield Lruncate posteriorly and wilh a single
pail' of setne. Ventrjflnal shield wilh [ive pail's of seLae in addition to
the usual pail' of pre-anal and Lhe single postanal setae. "Vith four narrow
platelets belween Lhe epigynial and ventrjannl shields. MeLapodal shields
Iru'ge, sub-circu laI'. Peri tremaLal shi clds extendi ng posLeriorly arouncl
coxae IV, ornamented anteriorly, peritremes extend anteriorly beyond
coxae 1. Tectum (fig. 2) with three anlcriol: projections. Inlernal sela
of palpaI femm wedge-shapeel disLally. Fixed digiL of cheliceril (fig. 3)
denLaLe throughout il' lengLh ;movuhle digit \vith lhl'ee Leelh. Legs l
slighlly longer than dorsal shield anel each \\'ilh il pail' of claws at Lhe
end of a long (c. /tO !L) pretarsus. Legs II-IV ,viLh claws and a l'Oundecl
j1ulvillus.
Mal e ; Unkno\vn.
Type material. - HoloLype female and two paralypes with Lhe
follo\ving daLa: « Tête de SOUf'Ce déboisée ,,; 13 decernber, 1951 - Coll.
H. DE SAEGER (Coll. Jo. 2930); Lwo paeaLypes ex « expan ion marécageuse ",
12 July, 1951 - Coll. H. DE SAEG&R (Coll. No. 2071); two pamtypes ex
« savane herbeuse bl'ûlée en décembre ", 25 Januâry, 1952 Coll.
H. DE SAEGER (Coll. No. 30L18); L,vo pal'atypes ex « bOI'el de vallon maré­
cageux ", 7 August, 1952 - Coll. H. DE SAEGER (Coll. No. 3921).
The holotype femnle will he deposiLeel in the collection of
of National Pal'ks of the Congo anrl Ruancla-Unmdi, Bru 'sels,
Par-ntypes will be placerl in Lhe collecliolls of Lhe U. S. National
WashingLon, D.C., the BriLish Museum (NaLural Bislory), London,
Instilute
Belgium.
Museum,
England,
Ily(1
elongnl
mncrm
Jlrovisi
10 Lho~
ascel'ln
7
PARC NATIONAL DE LA GAHAMBA
Potchefst.r'oom Universit.y, Polchefstl'oom, South Africa, the InstiLute of
Acarology, vVoosler, Ohio, U.S.A., and Oregon State Univer'sity, Corvallis,
Oregon, U.S.A.
***
The genus Hyatlella appears to be closely l'elat.ed to the genl1s lerco­
nopsis, HULL in that the posterior dorsal setae of Hyallella ep'icr'ioides are
ornamented. The ventrianal shield has mor'e than three pairs of preanal
setae, and the pl1lvilli of legs II-IV are rounded.
r,"GS.
1- .. -
J-L!}atclla ('lJicrioi(/cs n. gen., Il. sp.
1 : Venter; 2 : Tecll1m;
~
Femule.
: Cl1elicera;> : Dar' ·um.
Uyal tella has been placed in the Platyseiùwe pl'imarily because of iLs'
elongat.e rostral and 1 alp trochanter setae, and because of the presence of
macrosetae on tarsi JI-IV. Ils placement, howevel', should be considered
provisional inasmuch as the relative vitlue of these characters as opposecl
to those of chelicel'al dentiLion and pulvillar lobe sLructure has noL bepn
ascertained. IL is possible that Hyallella epicrioùles represents i:l. group
8
PARC NATIONAL DE LA GARAMBA
which is inlel'lnecliale beLween the PlalyseùTUlc ancl Aceoseji:nae (neal' the
genus Zerconopsis HULL) or, on Lhe basis of chelicer-ae, dorsal seLal paLlem
ane! plllvillnr looes, an aberrant member of the aceosejine genus Lrlsioseius.
Genlis PLATYSEIUS BEIlLESE, 19Hi.
Plal!Jseius BERLESE, A. (1916), Reclia, 12 : 42; EVANS, G. O. ancl K. H. HYATT
(1960), Bul. BriL. Mus. (Nat. HisL.), 6(2) : ~14.
Platyseius spinosus EVANS and HYATT.
(Figs. 5, 7, 8.)
Plalyseius spinosus EVAi\S, G. O. and K. H. HYATT (1960), Bul. Brit. Mus.
(Nat. HisL.), 6(2) : 41.
P. spinosus \Vas collected at the fol1owing locations in GarambtL Park:
Savane herbeuse de bas-fond ", 28 September, 1951 - Coll. H. DE SAEGEH
(Coll. 10. 2618); « hûl'd de rivière ", 2 f• Augl.l. t, 1951 - Coll. H. DE SAEGER
(Coll. No. 2351).
«
According lo the description of Lhis species presenLed by EVANS ancl
HYATT, the ventriaflal shield of the female has only Lwo pairs of Lhic],
spinose postanal setae, wilh a thire! pair inserted in the inLegumenL posleriüi'
to the shield.
The specimens which 1 have examined have ail three
pairs on the shielcl (fig. 7.). Inasmuch as the original description was based
on only one specimen, il is conceivable that the posterior pair of seLae may
be on Of' off the shield. IL is doublful that such a variation can have any
significance at the specifie level.
Platyseius congoensis n. sp.
(Figs. 6. 9-12.)
Fe m il 1e : LengLh of idiosoma avel'ages 487 p., with a range of 470-517 fl·;
widlh of idiosoma aL level of coxae IV avemges 409 iL, wiLh a range of
376-4It6 fl.. Dorsal shield (fig. 11) pyriform, unol'l1amented; dorsal setae
impIe, commonly recurved distally, and UlTanged as in figure 11; seLae i 3
and i., are approxima Lely the same length. Trilostel'l1urn large, wiLh two
sLrongly spinose lacinae; tritostel'l1al base flanked by a pair of narrow
presLernal shields. Slernai shield (fig. 10) unornamented; \ViLh Lhl'ee pairs
of setae. of \yhich the most posLerior is disLinctly longe!' than the 1110re
antel'ior pail's. Metasternal shields free, flanking the antef'Olateral COl'l1el'S
of Lhe postel'iody Ll'uncaLe epigynial shielcl. Epigynial shield separat.ed
from ventl'ianal shield by il narrow integumental band wiLh expandecl
extremities which represent the tYJJical medial pair of plntelets; wilh il
pair' of plaLelels posLerior and lateral Lo the above. Ventrianal shield
evenly curvecl anLeriorly Lo the lateral margins of the idiosoma., whel'e
iL joins
Lo 1he l
shie~d .
lh ree ill1
longer II
Lwice Lh·
aLe pulv
~\1 li l
<\23-1.32
II range
tophol'nl
the len!
sternal 1
fused 10
9
PARC NATIONAL DE LA GAllAMI3A
FIGS. 5, 7 ilncl S. -
!'/al.ljsl'ius s!iinuSlis I::VA\S :1IId. 1-11',1'1''1'.
5 : Tcctum; 7 : Venter;
[,'IGS. li, !J.
(j :
-
FellHlle.
: IJol'sunl.
P/a.luseills congocnsi.s n.
'p.
'l'ectlll1l 01' felilale; 9 : Cl1elic:el'D. aI female.
it joins the dorsal shield; with four pairs of ventrianal setae in addition
to the usual p:lil' of para-an ais and single postanal setae. Peritt'ematal
shie~d strongly developed posterio!' lo coxae IV.
Tectum (fig. 6) with
three anteriot' projections, ail of which are distally divided. Legs 1 slighlly
longer than body; with pretarsi and ambulacra on tarsi 1; tarsus 1 nearly
twice the length of tibia 1. Legs II-IV each with cln.ws and trilobed acumin­
ate pulvillus.
1\1 ale (fig. 12): Lenglh of idiosorna averages 427 !L, wiLh a range o(
lt23- 1132 [1-; widLh of idiosomu nL level of coxne IV averages 331 [1-, \Vilh
il range of 329-333 fi..
Simi'ur in most t'espects to the femule. Sperma­
torhoral process on the lTlovilble digit of the chelicera more than three times
the length of lhe digit. Slernal selae III dislinclly longer Lhan othel'
sternal hait's, aS in fernale. « Genilal " portion of ventral sclerotization not
fused to sternal shield; geniti-ventrianal Llrea as illustraled.
10
PARC NATIONAL DE: LA GARA\1I3A
T Y P e mut e r i il 1. - HoIotype female, eleven paralype females, and
allotype male '.vith the following data: " Ex galerie forestière ", 4 March,
1952 - Coll. H, DE SAEGER (Coll. No. 3182). The holotype femnle and
allotype male will ]Je deposited in the colleclion of the InstiluLe of National
Plcsio cjl
6(2) : L
The cl
of dorsal
Vel'lirlll :
1
200U
12
!
œ,
i
r
FIG '.
10·U, -
l'Irl!yscins congiwnsis
Il,
sp,
10: Venter of felllale; 11 : DOl'sufTI of femulc; 12: Veiller of
1IIUIt.: ,
Parks of the Congo and Ruanda-Urundi, Brussels, Belgium.
Para types
will be placed in the collections of the U.S, NaLionnl Museum, Wushington,
D.C., the BriLish Museum (NaLul'al History), London, England, Potchef­
stroom U niversi ty, PoLchefstroom, Sou Lh A frica, the InsLitu te of ACill'ology,
\Voostel', Ohio, U.S.A. and Oregon State Univer 'ity, Corvallis, Oregon,
U.S.A.
setae; m
beüring
s(~tae, in
Male wil
'J'y JlI
PARC NATIONAL
Df~
LA GARAMBA
11
Genus PLESIOSEJUS EVANS and HYATT.
Plesiosejus EVANS, G. O. and K. H. HYATT (1960), Bu!. Bril.
6(2) : 42.
I[US.
(Nat. HisL),
The definition of Plesiosejus is expanded as follows : Posterior portion
of dorsal shield with three or tom pairs of J setae; dorsal shield entire.
VerLical setae present or absent. SLernal shield with three pairs of simple
-zoou
15
~
16
14
!-'IGS. D-le..
-
PLcsiosc,ius ùcrlesci n. sp.
Femalc.
']3: DOJ'SUIII; g: Cl1elic:eJ'a; ']J : Teclum; 16: Yenler.
setae; metasternal shields free.
Genilal shield tl'uncate posleriorJy and
bearing a pail' of etae. Venll'ianal shield \Vith lhree Or four pairs uf
setae, in addition to Lhe lisual pair' of para-anal and single posLanal setae.
Male wiLh slel'l1iti-genital and ventrianal shields.
T Y P e sile cie s : .,1 'IIwl'osei'llS i./(/licus
nERLESE,
190;).
----~~----
12
PARC NATIONAL DE LA GAHAMBA
Piesi ose jus berlesei
Tl.
sp.
(Fig.; nI6.)
li' e m al e : Lenglh of idiosoma averages 4 f18 ~., wiLh a ra.nge of f123- f156 fi·;
\-vidth of idiosoma at level of coxae IV averages 283 il, with a range of
258-296 fi.. Dorsal shield with a fine reticulale paltern; simiLu' Lo P. ilalicus,
except that a pair of short ver-tical selae is present, and thaL only one pail'
of J setae is missing (J 1); length and disposition of dorsal seLae as illustrated
(fig. 13). Tritosterllurn well-devel0l'ed, with two pilose lacinae; pl'esternal
platelets absent. Sternal shield unornamented, with Lhl'ee pairs of simple
setae; metasternal shields free. Epigynial shield flanked posteriorly by
lwo nULTow pnirs of plalelels. Ventrîanal shield large, reliculale, poillled
laterally (fig. 16), and with three pairs of ventrianal setae in addition
lo the para- and postanal setae. Peritrematnl shield developed posterior
to coxae IV; melul'0dal shields present. TecLurn (fig. 15) with Lhree smoolh
anlerior spines. Chelicerae (fig. ili) narrow, long; movable and fixed digits
edenLate. Legs 1 approximalely as long as the idiosoma, tibia 1 % the lenglh
of Larsus 1; larsus 1 with claws and ShOl-t prelarsi. Pulvîlli on legs II-IV
produced into three acuminute lobes.
Scjas ken!
Hist.), j
S. fr.eru
de source
No. 2930);
SCHUHEN (
Coll. H. [
A disLi
and HYAT'
The Il div
speci fic et
Mal e : Unknown.
'1' Y P e mat e r' i al. - Hololype femule and three para type females \viLh
Lhe following daLa : « Galer'ie for'estière ", 4 Mar'ch, 1.952 Col!.
H. DE SAEGEH (Coll. ~o. :3182). The holoLype femule will be deposited in
the collection of Lhe InsLituLe of NaLional Parks of the Congo and Ruanda­
Urundi, Brussels, Belgium. Paratypes will be placed in the U.S. National
Museum, 'Washington, D.C., the British Museum, (Nalural History), London,
England, and Ol'egon State University, COl'vallis, Oregon, U. S. A.
Genus SEJUS C. L. KOCH,
184~-).
Se jus KOCH, C. L. (1843), übers. Al'tlchnidensysL., 3 : 92; EVANS, G. O. and
K. H. HYAlT (1960), Bul. Brit. Mus. (NaL. Hist.), 6(2) : 49.
Cheiroseius BEHLESE, A. (1916), Redia, 12 : 33.
Episeius HULL, J. E. (1918), 'l'raDs. Nat. RisL. Soc. NorLhumbel'1and (n. s.),
5 : 63.
Episeiel11l \JVILLMANN, C. (1938), Al111. Eist. Nat. iVlus. Hung., 31 : Hii.
Femn
517 1-'-; wic
282-305 [l.
iar lobes
Lhan rlilll
PAHe NATIONAL DE LA GAHAMBA
13
Se jus kennedyi EVANS and HYATT.
(F'ig,>.
17-]~.)
Se/us kennedyi EVANS, G. O. and K. H. HYArr (1960), Bul. Br·it. Mus. (1'\:11.
HisL), 6(2) : 65.
S. kennedyi \Vas found in lhree locales wilhin Garnmba Purk - « Tête
de source déboi ..ée ", 13 Decemher, 1951 - Coll. f-I. DE SAEGER (Coll.
1\'0. 2930); « Galer-ie for'eslière dense ", 15 January, 1952 - Coll. J. VEII­
SCI-IUREN (Coll. No. 3026); « Galerie foreslière sèche ", 18 April, 1952 ­
Coll. H. DE SAEGER (Coll. No. 3338).
A distinctive feature of this species which was not alluded tu in EVANS
and HYATTS'descripLion is the ornamenLaJion of lhe dorsal shielrl (fig. 17).
The « division" of the shield into four secLors appenrs to supply a useful
specifie charneter.
FIGS.
IÎ-lx. -
')t'jus f,elliwdyi EVA\S and 11LITT.
l;ell1ale.
J7 : Vente!'; 18 : OO!'SUnl.
Sejus lobatus n. sp.
(Figs. 1:1-22)
Fe mal e : LengLh of idio~oma averages l199 iL, wiLh a l'ange of 4.70­
517 IL; width of icliosoma at level of coxae IV averages 292 ~t, wi lh a l'ange of
282-305 fl. Dorsal shield entil'e, slrongly reticulaled, and with two large anter­
ior lobes on \-vhich seLne DI, D2 and Ml are inserted (fig. 22). Seta J, longer
thaD hitlf the di 'Iance belween setéle J., and J 5 • Other dorsal setae as
14
PARC
j
ATIüNAL DE LA GAHAMBA
illuslraled. Tl'iloslernal base flanked by a puir of nanow preslel'Oal plaLe­
leLs. SLernal shield \viLhoul dislincl ornamentation, and with lhree pairs
of shorl simple setae; melastemal shields ftee. Epigynial shielcl truncate
posLeriorly, wiLhout distinct ornamentution; with four sm ail plaLelets
beLween the epigynial and venLrianal shields. Ventrianal shield (fig. 19)
reLiculaLe, rOllndecl posteriorly, pointecl latemlly, and wiLh four pairs of
Type m
the followi n
Coll. H. DE i
in the collecl
U mndi, Bl'u
of the U.S.
(Natul'al Hisl
Oregon, U.S
Femule
!J.; width
of 282-296
illustraLed (f
of the dista
as illllstntte,
anterior pro
(EVANS and
illllstr'aLed (f
between epi
the ventriaJ
untel'iorly, a
tel'ior to cO)
distûlly divi
prominenL L
short preLar,
longer lhan
pulvilli.
{lÎ4
Male
Fl(iS. 19-22. -
Se)lls lolJa/us
Il. ~p.
l.'emale.
:10: Venter; 20: 'J'eclurll; 21 : Cllelicera; 22: Dorsum.
seLae in addiLion Lo the pill'a- and posLanal seLne. Perürematal shields
exLending posteriorIy well beyond coxae IV. TecLum wiLh Lhree anterior
disLally divided projections (fig. 20). Chelicerile ilS illustl'aLecl (fig. 21).
Legs 1 somewhat longer Lhan hody; claws ilnd pretal'si minuLe; Larsus 1
nearIy Lhree Limes Lhe lengLh of Libia 1; pulvillar lobes of legs II·IV
acuminaLe.
Mill e : UnlwO\vlI.
T Y P e Il
Lhe followin
GER (Coll. NI
of the 1nsLi LI
BelgiulTl. 'J
Museum, VI
PARC NATIONAL DE LA GARAMBA
15
Type mate rial. - HoloLype female and foul' pal'atype females ,vilh
Lhe following data: « 'fête cie source déboisée ", :13 decembel', :195:1 ­
Coll. H. DE SAEGER (Coll. No. 2930). The holoLype female will be deposited
in the collection of the Inslitute of Nütional Parks of the Congo and Ruanda­
Urundi, Brussels, Belgium. Pal'atypes will be placed in lhe colhJctiolls
of the U.S. National Museum, Washington, D.C., the British Museum
(Natural History), London, England, and Oregon Slale Universily, Corvallis,
Oregon, U.S.A.
Sejus crenulatus
(I.'ig~.
Il.
sp.
2:3-25.)
Fern 11 1e : Length of idiosoma 11veruges 117:1fL, with a range of 470­
474 "'; widlh of idiosomû al !evel of coxae IV averages 285 fL, with a l'ange
of 282-296 !J.. Dorsal shield notched antel'iorly, Cl'enulate-reticulate as
illustrated (fig. 23); vertical selae short, selae J, less lhan half Lhe length
of Lhe distance beLween the insertions of J, and J s ; olhee do l'saI selae
as illustra.ted. Pl'estel'nal shields ab ent. Stel'l1al shield with a pair of
antel'iol' prominences, as in S. signatus, nepalensis, necorniger, and athel'.
(EVAi\S and HYATT :1960); melastel'l1al shields free. Epigynial shield as
illustrated (fig. 25), flanked po. teriorly hy two pairs of platelets. Distance
beLween epigynial and venll'ianul shields almost equa! to the lenglh of
the ventrianal shield (:1: 1,25). Ventl'iûnal shield triangular, truncate
unLeriorly, and wiLh nine seLae. Peritremulal shielcl weIl clevelopecl p08­
lerior to coxae IV; melapodal shields small. Tedum (fig. 24) with three
disLalJy divided anterior pr-ojecLions. Movallle digit of chelicera wiLh one
prominent tooLh; fixed digit denlale clisLally. Legs 1 wi lh claws ancl a
shor·t pretal'sus; at leasL :1 V2 limes longer Lhun dorsal shield; Libia 1 distinctly
longer Lhan Larsus I. Legs II-IV \Vilh ambulacrû and triple-Iobed acuminale
pulvilli.
NI nIe : Unknown.
'r y p e mil tel' i il! . -- Hololype fernale ancl one pal'atype female wilh
the following data: « Galerie forestière ", 4 March, :1925 - Coll. H. DE SAE­
GER (Coll. No. 3:182). The holotype fernale will be deposited in the collection
of the InslituLe of National Plll'ks of Lhe Congo and lluanda-Urundi, Brussels,
Belgium. The puratype will he placed in the collection of the .S. National
Museum, \Vashington, D.C.
16
PARC NATIONAL DE LA GAHAMLlA
Dorsal se
l!le longe
!\ lŒY '1'0 THE GI~ EnA AND SPEcms 01' :1.CEOSE.ll.\'.l/~
COLLbCTED BY 'l'HE MISSION H. DE SAEGEI{
'1'0 GARAMBA PARK, CONGO (HH9-i952).
1. Wilh poslerior marginal setae in the inlegument adjaeent Lo the c!ursnl
shield; elongaLe speGies \-vith well-developed dOI'sal llnd ventral sclero­
tization
LASIOSEIUS BERLESE 2
Wil;h posLer'ior' mal'ginal setae inserted on the dorsal shield
G
2. Sternal shield convex l'usteriol'ly; seLae Jo extending weIl 1 eyond the
insertions of J, (fig. 26) ....
Lasiosei'lls convcxus n. sp.
Stel'l1al shield concave posleriorly; seLae Jo at most l'eaching the insel'­
tions of J.l
..
~l
Lasioseius dururnae n. sp.
3. Melasternal shields absent
IIetasternnl shields pt'esent
fL
..................
f l
Stel'l1al seLae 1 inserled on prestemal plateJets whieh are parLially fllsec\
lo stemnl . hielcl; wilh lhil'leen setae on the venLrianal shield
Lasioseùls garambae n. s1>.
Slernal seLne 1 inserled on stel'l1al shield; pl'estemal IJlaleleLs free; wiLh
eleven setae on the venLr'ianal shield
"
:s
1
t
~
l
~
1
5. Tarsus IV with three long slout setae; tectllt11 dentiGUlale; with
an integumental slrip bel.ween epigyninl and v nl.rianal shields
Lu.sioseius analis EVAI\s.
Tarsus IV withoul long stout selae as above; lectllm with lhree anterior
projections; wilh four nnl'l'o\V pln.teleLs beLween epigynial and ventrinnal
shields
Lasio eius nambirimae n. sp.
6. Idiosoma pyriform; len'si II-IV with basal
venLrnlly; wilh venlriannl shield
«
sen 'ory " stl'lldme Ifig. 38)
flFnlCOSEIUS n. gen.
Aj-ricoseius areolatus n. sp.
Idiosomn. elongnte; tarsi Il-IV vvilhoul. sll'l.1cLu1'8 l'eferl'ed lu above; with
anal shield
PHOCTOLAEL:lPS BEHLESE 7
7. Dorsal seLae l'obust, simple; dorsal shield ol'l1arnenl.ed; anill. shield wilh
prominent nIlleriol' pl'oj eGtion ... "....... Proctolaelaps oudemansi Il. sp.
LrlSiosei'lls BE
Zool. Soc
rlceosejus SEI
nOl'inquo/rtel l .
17
PARC NATIONAL DE LA GARAMBA
Dorsal setüe (except for Dl and Z5) attenuate, the more poslerior being
the longer; anal shieJrl wilhout prorninenL ilnterior projection
.
ProcLolllr[(llis IIc/lI'llhrix n ..~Ji.
FICS. 2:1-2,1. -
SeillS crennloll/.1 n.
~p.
[··elliaie.
2:1 : Dürsulll; 2', : Tectum: ;,J.i : Venler.
FICS. 26-28. -
La~ioseia<
conve.nlS Iî. sp.
Female.
2G : DCI'.ïlm; 27 : Teclulîl: 2,· :\·elîter.
Genus LASIOSEIUS BERLESE.
Lasiosei71S BEHLESE, A. (HH6), Redia, 12 : 34; EVANS, G. O. (1958), Proc.
Zool. Soc. London, 131(2) : 215.
rlceosejus SELLNICK, M. (194.1), Zool. Anz., 133 : 149.
f]orinquo{llelflps Fox. A. (1946), J. Parasit., 32 : 450.
PARC NATIONAL DE LA GARAMBA
18
Lasioseius convexus n. sp.
(Fig~.
26-2 .)
Fe mal e : Length of idiosoma averages 546 p., wiLh il l'ange of 517-582 p.;
width of idiosoma at coxae IV averages 303 p., with a l'ange of 300-305 f'-.
Dorsal shield with l'eLiculate pattern laLerally (fig. 26) and with a ddind
punctate area posteriorly. Setae Z" peclinate distally; other setae simple,
as illustrated. Trito. ternum flanked basally by a scleroLized strip of cutide
which is sinuous posteriol'ly (fig. 28); prestemal shields at least parLially
divided. SLemal shie]d wiLh weak puncLate paLtern; notched anteriol'ly
ancl convex posleriorly; wiLh Lhree pail'. of _elae. vViLh a pail' of meta­
sLemul shields flanking Lhe anteriol' corners of lhe truncaLe epigynial shield.
With four narro\V plateleLs between Lhe epigynial and lhe venLrianal shield.
Ventrianal shie]d ornamenled as illustrated (fig. 28); wiLh eleven setae.
PeriLrernatal and endopoda] shields fused al coxae IV; periLrerne extending
anLeriorly and dorsally lo a point adjacent to setae MI; melapocta]s pre enL.
TecLum with distally divided cenLra] pl'ojection (fig. 27) und Lwo ]ateral
tusk-like prominences. Fixed digit of chelicera with approximately fourLeen
Leelh; movable cligiL wiLh four. Legs short; wiLh \-vell-deve]oped amhulucra
and rounded pulvilli.
Ma
]e
l'emule
widLh of id
220-235 :1..
ex pa nded cC
distally (fig.
nknown.
Type maLerial. - Ho]oLype female and Lwo paraLype female \vith
the following daLa: « Savane de vallée », 30 March, 1951 - Coll.
H. DE SAEGEH (Coll. No. 1489). The holoLype female will be deposited in
the collection of Lhe Insti Lute of JaLional Purks of the Congo and Huanda­
Urundi, Bru 'sels, Belgium. Paratypes will be placed in the collecLions
of the U.S. National Mu eum, vVushington, D.C. and the DriLish Museum
(Natural HisLOl'Y), London, Englancl.
Lasioseius analis EVANS.
Lrlsiose'ius rtfwlis EVANS, G. O. (1958), Ann. Mag. Nut. Hist., sel'. 13, vol.
i : 581.
L. anlllis was round in the following sUll1p]es: « TêLe de source j\
boisement dégradé », 5 June, 1951 - Coll. H. DE SAEGEll (Coll. TO. 1883);
« galerie forestière très claire », 13 Jul.)', 1951 Coll. H. DE SAEGEn (Co]l.
No. 2062); « galerie forestière », :13 Augusl, :1951 - Coll. H. DE SAEGER
(Co]l. No. 227G); « galerie forestière li, 2/1 .-\pril, 1952 - Coll. H. DE Si\EGEIl
(Co]l. No. 3330).
llilmenled si
namenLed li
hie]e! with
sh ielcls extE
dorsa Il.)' to i
'l'eel u III \\' il
. pines (fig-.
\-vith severn
l'u]villi; la
without ]0
19
PARC NATIONAL DE LA CAHAMBA
Lasioseius nambirimae n.
p.
(Figs. '.':)-31.)
Fe mal e : LengLh of idiosollla averages 403 p" \Vith a l'ange of 385-423 p,;
widLh of idiosoma aL level of coxne IV average 232 p., with a l'ange of
220-235 p.. Dol' al shield l'eLiculnte; man y of Lhe dorsal 'etae with an
expanded ollêll' di Lally; postel'ior etae expanded and weakly pecLinaLe
distnlly (fig. 31). \iVilh a pail' of )ll'esLernal shields anlerior lo the unOl'­
FICS. 20-:31. -
T,a~ioôciu.s
nmnliirimae n. "p.
Female.
l'a : Vellter; 30 : Tecllll1l; 31 : Dorslim.
namenled ternal shield; melusLernal 'hield free. Epigynial shicld UllO!'­
namenled and flêlnked posLeriorl,)' by four nalTOW platelets. Ventriannl
shield with eleven setae, ornamented as illustrated (fig. 29). Perilremalal
shields exLending ul'Ound coxae IV; periLl'ellleS exLending anLeriorly and
dorsally lo iL poi nl anLel'ior of setae \1,' 'Ni th t\",·o pai l'S of meLapodal sh ields.
Teclurn \Vith distally divided cenLral prolllinence and l\Vo nalTOW laleml
"pines (fig. 30). Movable digit of chelicern \Vith Lhree Le th; fixed ctigit
\Vilh several small leelh. Legs wilh well-developed ambulncra and l'oundect
pulvilli; Larsus I approximaLely L\Vice the lenglh of tibia I; lal'sus IV
without long spinose setae.
20
PAnc NATIONAL
Mal e
OF:
LA GAnAMRA
Unknown.
T YIl e m ü't el' i al. - HoloLype fel11ale and eleven paruLype femèLles
wilh lhe following daLa : « Galerie foresLière ", 7 AugusL, 1951 - Coll.
H. DE SAEGER (Coll. No. 22 l19). The holoLype female will he dei osited in
Lhe collection of Lhe InsLi lu Le of Nalional Parks of the Congo and Hu anda­
Urundi, Brussels, 13elgium. Pal'alypes will be deposiled at the U.S. National
Museum, Washington, D.C., the British Museum (Natural History), London,
England, Potchefstroom University, PotchefsLroom, South Africa, the Insli­
luLe of Acal'Olgy, \Vosoler, Ohio, U.S.A., the Soulh Australian Museum,
Adelaide, ünd Oregon SLaLe University, Corvallis, Oregon, U.S.A.
Lasioseius garambae n. sp.
(figs. 32-33,)
1<' e mal e : Length of idiosoma averages 379 p., with a range of 376-385 il.;
widl.h of idiosoma at the level of coxae IV averages 257 fL, wilh a runge of
2l 14-282 !-'.. Dorsal shield with stl'Ong l'eliculale paLtern (fig. 33); dorsal
seine as illustra Led. Preslernal shields fused to unOf'11amented slernal
shield and bearing the first pilil' of sternal s tae (fig. 32); metasLernal shields
fl'ee. Epigyniu,l shield wilhout ornamentation and flanked posteriorly hy
four ni.llTOW plateleLs. Ventrianal shield paLlerned as illusLrated, with
five pairs of shorL 'imple venLl'ianul setae, in addilion to Lhe usual pair
35
of liura-il nill
podal IVexl
Tectum and
idiosorna; lil
Mil]
e
T,v" e Il
following dél
- Coll. H. 1
j Il lhe colle
H.uanda-Urll
D.S. Nalion
Flli:-'. :{:!.:t:L
l.ffS;().'\f'iflS !/urr1JUllffl' II.
:J'! : Yl'lIler: :1;) : Dar
'\1 III ,
:--.p.
Fl'III:lIL'.
Felllaic
widlh of idi
:i52!-'.. Dnr:
Sl,illU,'(\ ulh
num, und f
21
PARC NATfONAL DE LA GARM'1BA
FIGS, ;l~<1(j. -- /.rlsioscius el.l/l'IIl/laC
J', : TeclulII,
J,) :
Il,
~p.
Feillale.
\'elltlèr; ;J(j : DüI'5UIII.
of para-anals and the slngle 110sLanai seLae. PeritremaLal shield and exo­
podal IV extend ing around coxne IV; w ith two palrs of meta podill plateleLs.
Tectum and chelicerae not clear in either specimen. Legs shorter than
ldlosoma; Larsl with slrong' claws ilnd l'Ounded pulyilli.
\if ale: Unknown.
T Y P e 111 il Le]' i al. - Holotype female and paratype female wiLh Lhe
following dilta : « VesLiges de galerie forestière ancienne ", 23 August, 1951
- Coll. H. DE SAEGER (Coll. No. 2313). The holoLype female will be placed
in the collecLion of the InsLiLule of Nalionnl Pm'l{s of the Congo and
Ruanda-Urundi, Brussels, Belgium, The paf'ül,ype will be sent ta the
U.S. NaLional Museum, yVashington, D.C.
Lasioseius durumae n. sp,
(Figs. 3'·3G)
li' e In a je; Lenglh of idiûsomil lLyel'ages 509 fi., \.\'iLh a l'linge of 495-517 !J.;
widLh ofidiosoma at leyel of coxne IV averages 339 [L, wiLh Il range of 329­
:352 !Jo, DOl'sal shielcl (fig, 30) :-iLlongly retlculate; postel'ior setile long <Incl
spillu,,;e, oLhers us illu::itlllteci. l-'t'esLel'Ilid shlclds lm'ge, f1anklng triLoster­
nu m, and fusedposteriol'!y 10 sLernal shield. SLernal shield ornamenled
22
PAHe NATIONAL DE LA GAHAMBA
il' illusLl'aLed (fig. 35); wiLh lhl'ee pairs of seLlIe; lIoLched posLerollledially.
lVreLaslernal shields absenL; meLasLel'l1al seLae insel'led fl'ee in Lhe inLegumenL.
E[Jigyniai shield wealdy l'eticulate, plaLelds flcll1king the shield fused.
Ventrianal shield l'eliculaLed; with eleven setile, including the paea- and
postanal setae; melapodal shields prominent. Pel'ilrernalal shields ahutting
expodals IV but not insensibly fused \-viLh them. Teetull1 (fig. 34)rouncled
and denticulate; chelicerae denlate distlllly. Legs shol'Ler lhan idiosomll;
Lal'si wiLh well-developed cl,lws and l'ounded pulvili.
(fig. 39) wi
shields elo
shield. El
il pail' of
large wiclel
simple ver
Mal e : Length of idiosoma = 441 p.; \vidt:h of idiosoma at level of
coxa.e IV = 305 !J.. Similtu' to female except fol' the following: metasternnl
seLae inserled on an unol'Oamented sLernal shield; geniti-ventrianal shield
sLrongly reLiculaLed; genital opening at anteriol' edge of sLernal shield.
Chelicel'ae not cleal'.
T Y P e mat e r' i al. - Hololype femille, allotype male, and four paratype
females wilh the following data: « galerie fOl'estièl'e dégradée, tête de
source », 30 May, 1951 - Coll. H. DE SAEGER (Coll. No. 1861). The holotype
female and ailolype male will be deposited in the collection of the Institute
of Nu tional Parks of Lhe Congo and Ruanda-Urundi, Brussels, BelgiulTl.
Pueatypes \vill be senL to the U.S. National Museum, Washington, D.C.,
Lhe British MuseulTl, (NaLural HisLol'Y), London, England, Potchefstroom
University, Pote'hefstl'oom, South Afl'ica, and Oregon SLate University,
COl'vaIlis, Oregon, U.S.A.
Genus AFRICOSEIUS n. gen.
37
Icliosoma pYl'iform; postel'iol' marginal setae inserted on Lhe dorsnl shielcl;
dorsal setae insel'Led on smaIJ tubercles. Sternal, metastel'Oal and epigynial
shields Lypical fol' family; venLrianal shield large, ellipLical, and \Vith nnni
opening of normal size. PeriLremalal shield fused wiLh exopodals IV.
Tarsi II, III and IV wiLh a large « sensol'Y » apparaLus pl'oximoventl'uIly.
Hypostomal setae II and anLeroventral seLa of Lhe pnlptl'ochünter elongate as
in Platyseiinae. Tarsi normal for subfamily.
Type speeies : Ajricoseius areolatus n. sp.
MonoLypi"
Africoseius areolatus n. sp.
(!'i gs. :~7-:l!).)
Fe 111 II 1e : Length uf idiosoma = 4011 p.; widLh of idiosoma at level of
coxne IV = 319!-L. Dorsal shield PYl'ifol'm, unornnmented nntel'iorly, huL
\Vilh lll'eolllle pattern posLel'iorly (fig. 37); pal'avel'Lical seLae ahsent; selal
placement and length as illustl'illed. Preslel'nal shields appill'enLly divided
ll'anSVel'sely and fla n king a ,veak ly pl umose Lei losLernurn. SLernal shield
Pel'itl'emal
peri Ll'erne~
TecLurn il
of chelicel
nncl IV el
be sensOl
pulvilli.
Ma le
Type
fÙI'eslière
h lolype
!'al'k::; of
23
PARC NATIONAL DE LA GARAl\'1BA
(fig. 39) with füint patlern and with three pairs of simple setue; metustel'l1ül
shields elongüte und placed mediad of lhe posLeriol' corners of Lhe slernal
shield. Epigynial shield unornamented, brondened posLeriorly and with
a pair of short setae; poslel'ior platelels not observed. Ven tl'ian al shiell
large wider than long and omamenLed as illustrated; \ovith six pairs of shorL
simple venLrianal seLle, in addition lo the usual para- and posLanal setae.
FIGS. 37-3(), -
rlf)'icoseius auolcUus n. g-en., n. 5p.
Femalc.
37 : OOI'5UII1; :38 : Proximal portion of venter of tal'5U5 II; 3V : Vellter.
Peritremalal shield fused to exopodals IV and developed al'Ound coxae IV;
peritremes exler.d anteriol"!y and dOl'sally to the apex of Lhe idiosoma.
'rectum appill'enlly rounded and unornamented anteriorly. Movable digit
of chelicera with two teeth; digitus mobilis with one tooth. Tarsi II, III
and IV ench wiLh ü proximovenLnil structLll'e (fig. 38) which appeal's Lo
be sensory in funcLion. Tarsi with well-developed clüws and blunt
pulvilli.
iVI ale: Unknown.
'1' Y P e mu le r i u l . - One female with the following data.: « galerie
fOI'e'Lièl'e ", 211 API'il, :1952 - Col!. H. DE SAEGER (Coll. No. 3330). The
holotype female will he deposiled in the collection of the ln ·titute of National
l'arks of the Congo anrl 11 ua ncla-U l'LI nd i, B,'ussels, Delgi U 111.
*
**
~-----,,--
24
PAn." NATIONAL
DE
--
--
-
LA GA HAMFlA
Accol'ding Lo the taxonomic scherne developed by EVANS (1958) fol' the
Aceosejinae, flfricoseius is most closely l'elated lo the genus PToctolaelaps
BERLESE, subgenus Neojordcnsia EVANS. The aJfinities of A{ricoseius to
Nf'ojordcnsia appeal' to the au Lhor Lo be sLl"Ong l' Lhan those beLween Procto­
lap/aps s. sb', and Neojordensia. A subgeneric relaLionship heL\oveen
A fricoseius and Proctolaclaps is considered u nlikely, inaslTl uch a' gren t
differences beLween these groups al'e obvious (see following key and descl'ip­
Lion '). A genel'ic sepal'aLion of Procfolrœlaps and Neojordcnsia would
da ri fy Lhe posi tion of Lhesc Lwo gl"Ou ps in relation Lo Africoseùls. The
following revision is proposed :
and unOI'nlll
wi th th t'ee
shol'L; Lu'si
1
iVI n 1C
'l'y pe Il
following di
(Coll. No. 2;
- Coll. H.
c1ep silecl il'
1. Femille with an anal shield; }1el'iLl'ematal and exopodal shields nol
fused
""'.'
,.. ,"',"'".,",.".,' ,.".", .. ,."" Proctolaelaps l1ERLEsE,
Female wiLh a ventrinnal shield; peritl'ematcl1 and exopodal shields
fused """""""""""""""".,.""",." ... "".,."" .. "".".,.".".,.""",.,., 2
2. Idiosoma pyrifOf'm; ven Lria nal shield rounded anteriotly
..
Africoseius n. gen.
Idiosoma elongale; ventrianal shield excavaled antel'iorly
..
Neojordensia EVANS new . LaLus.
Genus PROCTOLAELAPS BERLESE.
Proctolaelaps BERLESE, A. (1923), Redia, 15 : 255;
Zool. Soc. London, 131(2) : 197.
Seiopsis BERLESE, A. (1923), Redia, 15 : 255.
Jordensia OUDEMANS, A. (1936), K. H. O. A., Bd
Chamo,'aelaps HULL, J. K, in TÜRI<, F. A. and
Mag. Nat. Hist., 5(12) : 482.
Blflltilaelaps "WOMERSLEY, H. (1956), Jour. Linn.
EVANS, G. O. (1958), Proc.
3 A : 214.
S. M. TÜRI{ (1952), Ann.
Soc. London, 42: 566,
Proctolaelaps oudemansi n. sp.
(Fig~,
40-'t2.)
lt' e mal e : LengLh of idiosoma average' 411 [L, ,vith a range of 385-460 y.;
widLh of idiosorna aL level of coxae IV averages 249 p" wilh a ['ange uf
225-291 [J.. Dorsal shi Id wiLh Jight l'eLiculate paUem; dorsal seLae robusL,
many exLending Lo the insel'Lions of setac behincl Lhem (fig. f10). Tritostel'­
nun, weakly pilase, with bvo lacinae; flanked la.tel'opostel'iorly by a pair of
pre Lemal platelets. Stemal shield (fig. 42) omamented wiLh a weak
reLiculate pattern and berlring lhl'ee paü's of setae; mela.stemal shields fl'ee.
Erigynial shielcl raLterned as illustratecl and wiLh a pail' of impie setne.
VenLl'ull'egion wiLh severa! pairs of sLrong- sehe. .\nal shield obovoid and
\Vith an anLerior pl'Omillence; n.nal openillg large. PeriLl'emnLal shield free;
exopoc1nb fused and exL nc1ing around coxae IV. Tectum (fig. 41) rounded
and HuaIt(
the U.S. N
History), L
\ f l' ica, Lhr
\VaosLcl', '
LJ.
UilI!
pl'esence (
ll10dificilli
P. ollr/cm·
?luu/si dOt
PARC NATIONAL
OE
25
LA GAHAMBA
and unornamented. Fixed digit of cheliceril multidenLate; movable digit
\Vi th Lhl'ee disLinct teeth. COl'niculi ewd hyopstomal setne normal. Legs
shurt; teU'si with stt'ong cla\\'s and rounded pulvilli.
Male: Unknown.
T YP e maL el' i al. - HoloLype and tluee pCLmLype femules \viLh Lhe
fullowing dah : « Savane herbeuse
4 Oclobef', 1951 - Coll. H. DE SAEGER
(Coll. No. 257"i); fom' pal'atype females ex « savane herbeuse
8 July, 1952
- Coll. H. DE SAEGEl1 (Coll. No. 3748). The holotype female will be
deposiLecl in the collection uf Lhe Institute of National Parks of the Congo
)l,
)l,
Pl'oclolac[a]lS o7il/clilansl n. "p. fClI1ale.
!.O : Dorsunl; .\1 : TeelullI; /.2 : Venter.
FIGs. /.0-\2. -
ilnd tl.uilnda-Ul'undi, Brussels, Belgium. Pal'atype femules will be sent Lo
the U.S. National Museum, 'Washington, D.C., Lhe Bl'itish Museum (Natural
History), London, England, Potchefstl'oorn University, Potchefstf'Oom, South
Afl'ica, lhe South Australiun Museurn, Adelaide, the Institute of Acarology,
WoosLel', Ohio, and Oregon State Univ8l'sily, COl'vallis, Oregon, U.S.A.
V owlcmansi may he disLinguishecl fl'om closely l'elated fOl'l11s by Lhe'
lll'esence of a lm'ge anLeriol' pl'otuherance on the anal shield, a peculial'
moclific.;aLion shared hy P. lUllflijil1i.1 (CHA'rr) ilnd P. bicklcyi (BEM'I).
P. olll!cmflilsi is dislinguishcd frOlll Lhe:-ie species in LhaL seta J, of P. out/t.:­
lIl(tnsi cloes nol extencl heyond Lhe insedions of J.,.
26
PAnG NATIONAL DE LA GAHAi\IBA
Proctolaelaps nemathrix n.
p.
(Figs. 43-47.)
Fe mal e : Lenglh of idiosoma averages q31 fi., wilh a l'ange of l123-q46 fl-;
v.:idlh of idio orna al level of coxae IV averages 286 fl-, wilh a range of
282-291 fi.. Dol' al shield unornamenLed and cUf'ving venlral laleroposle­
l'iody; dorsal selae, with the exception of D, and Zs, aUenuate, the 11\ore
poslerior selae being the longer (fig. q6). Prestemal platelets abulling
~43
of dorsal sh
cornculi sli
foUt' distin(
NI al e (
of coxae 1\
maLophoral
ing beyond
T Y JI e
followillg (
1951 - Col
herbeuse ni
five paraLy
- Coll. H,
marécageuJ
paraLype fi
J. VERSGIIU
ù îloLs de
(Coll. No.
in lhe colle
Urundi, BI
(~aLural
H
Ion, D.C., l
AusLralian
U.S.A., an
l'IGS. '>:.l-4Î. -- Proclo/aela]Js nemalhrix n. sp.
1,:\ :
Chelicera of female; 44 : Venter of male; l,;) : Hyposfome of fenwle:
1,6 : Dorsutn of [emale; 1,7 : Vellter o[ femole.
sternal shield which is lightly patterned as il1ustrated (fig 47) \vith three
pairs of long thin setae. Meta ternal hields disLinct. Epigynial shield
lighlly ornarnented and bearing a pair of seLae. Vertical setae short, excepL
fol' the pair directly above the anal shield. Anal opening enlurged; post­
anal seta considerab!y heavier lhêll1 para-ana! ; anal shield \:vith blllnt point
01' slight prominence anLeriorly; wilh one pail" of long spinose posLanal . eLac
inserLed in the integument adjacent ta the shield. Peritrernes extending
anteriol"ly 10 a point slighLly laLel'al of setae M, (fig, l16). Ventral extensions
PARC NATIONAL DE LA GARAMBA
27
of dorsal shield posterior to epigyniat shield. HyposLomal setae l expanded;
cornculi slighLly sinuate (fig. 45). Movable digit of cheliccra (fig. 43) with
four' distinct lcelh; fixed digit mullidenLnte.
NI ale (fig. 44) : Length of idiosoma = 324 ~.; w id th ofidiosoma at level
of coxae IV = 197 ~.. DOl'sal morphology similar to that of female. Sper­
maLophond stl'llclure on the movable digit of the che!icera unclll"ved, extenc1­
ing beyond th cheliceral digit by only half its length. Venler as illustruted.
T Y P e Hl Cl te 1" i al. - Holotype femule and allotype male with the
following dala : « Savane herheuse à ligneux l'ares, non brûlée ", 16 April,
1951 - Coll. H. DE SAEGER (Coll. No. 1578); one paratype female ex « savane
herbeuse non brûlée ", 16 June, 1951 - Coll. H. DE SAEGER (Coll. No. 1955);
five PUI'lüype females ex « galerie forestière humide ", 18 November, 1950
- Coll. H. DE SAEGEn (Coll. No. 988); seven paratype femnles ex « fond
marécngeux ", 4 May, 1951 - Coll. H. DE SAEGER (Coll. No. 1720); one
paratype female ex « savane arborescente ", 15 November, 1950 -- Coll.
J. VEl{SCHUREN (Coll. No. 973); one para type female ex « plaine marécageuse
tL îlots de Graminées non brùlées ", 2/1 May, 1951 - Coll. H. DE SAEGEl{
(Coll. No. 1815). The holotype female and alla type male will be deposiLed
in lhe collection of the InstituLe of National Parl,s of the Congo and Ruanda­
Urundi, Bl'llssels, Belgium. Puratypes will be sent. to the British Museum
(NaLural History), London, England, the U.S. National Museum, Washing­
ton, D.C., Polchefstroorn Univer'sity, Potchefstroom, South Ail'ica, the Sout.h
Austmlian Museum, Adelaide, the InstiLule of Acarology, Woost.er, Ohio,
U.S.A., and Oregon State UniversiLy, COl'vallis, Oregon, U.S.A.
OHF.GO~ STATE UNIVERSrTY.
COI'\'atlis, Ol'egoll, l,S .. \.
28
PARC NATIONAL DE LA GAHAMBA
ALPHL
SUMMARY
The following new genera and sJlecies are pl'Oposed :
Plalyscius congoensis n. sp.
Se jus crenulalus, lobillus n. SPI'.
l:/yallella epicrioülcs n. gen., n. sp.
Plesioscjus berlesei n. sp.
Lasioseius nambirimae, durumae, .lJllrmnÙac, convexus n. SPi).
fljricoseius areolalus n. gen., n. sp.
Proclolaelaps ncmalhrix, oudemansi n. spp.
Neoj01'densia EVANS, a subgenus of Proc/olaelaps BEHLESE, tS raised to
o-eneric slanding.
Aj,icoseius ..
nnalis, Lasiose
(ueolaills, Afri
be1'lesei, Plf.sio
bickleYl:, Prad,
congoensis, PU
convexus, Las;
cremtlat1ls, Se,
d1l1"7t11w.e, Lasi
epicrioides. I-J,
gantmbae. La j
J-f yaUella.
..
ilaliC1ts, Plesù
29
PARC :'iATIONAL OB LA GAHAMl.lA
ALPHABETIC INDEX Tü GENERA AND SPECIES
J)ages.
Af, icosei7ls ...
mwlis, Lctsiosei1ls ..
ureoùt{us, Africoseius
ber/esei, Plesiose.i71s
bickleyi, Pwctoùtelctps
22
22
..
12
25
18
15
d1trmnae, Lasioseius
21
garambae, Dasiosei'lls
Hyattella..
italiws, Piesiosejus
1"
Lasioseius
lobatus, Bejll.s .
longipilis, Proctolaelaps
13
d
:18
congoensis, Platyseùt8 ...
convexus, Lusioseius
cremilatus, Bejus ...
epicrioicie.s, Hyattella
l'ages.
kennedyi, Bejus
8
G
20
G
12
17
9­
,;)
nambirima.e, Lasioseùls .
necorniger, Bejus ...
nemathrix, ProcloÙteÙtps
li'eojordensia ..
nepalensis, Bejus ...
19
15
2G
ouciemansi, Proctolaelaps
2'.
Platysâus
Plesiosej1t8
Proctolaelaps ..
11
Bej1tS
signatus, 8eill-s
Spi1WS118, Platyseills
2/,
15
S
2',
12
15
8
PlIblished August 3J. 1962.