Anisoptera: Gomphidae

Odomtologica 34(3):
285-289
September I,
2005
SHORT COMMUNICATIONS
Davidius monastyrskii
spec. nov.,
a new dragonfly from northern Vietnam
(Anisoptera: Gomphidae)
D.M. Cuong
Hom thu
16,
so
Buu Dien
e-mail:
Received
35 Thai
October 4, 20041 Revised and
The S of the new
sp.
D. fruhstorferi Martin.
ited in
10210,
is
described, illustrated
Holotype 3: Vietnam,
Zoology Collection,
Thinh, Hanoi,
Vietnam
[email protected]
Vietnam National
1
AcceptedFebruary
and
comparedwith
Bac Can
prov.,
University,
the
Ba Be,
2005
7,
closely
related
IV-1997; depos-
Hanoi
INTRODUCTION
Davidius is
an
uted from the
have
YANG
recently
(1995)
Tonkin
Davidius
two
fruhstorferi Martin,
(MARTIN,
1904),
“
another
? D.
trox
(1986)
Needham,
and CHAO
of that
species,
species
with further
not
match
exactly
taxa
by
Japan.
(1990,1995)
ASAHINA
to
distrib-
northern
The Chinese
and CHAO &
(1994).
described from
specimens
specimens
from
from Lao Cai and Vinh Phu
1996);
1931
“
on
trox
province,
a
identified by ASAHINA
(1996)
as
the basis of descriptions and figures by ZHOU
(known only
and described
appendages
recognized species,
Nepal eastwards
CHAO
1904, originally
related
misidentified material fromYunnan.
the anal
20
have been recorded from Vietnam:
(1990). Subsequently,
in the taxonomy of D.
by
Nepalese
from Lao Cai
species
some
north-eastern China, Korea and
and the Indian and
provinces (ASAHINA,
—
to
genus with
in north India and
areas
been treated and revised
In the literature
D.
dragonfly
Indochinaand
Thailand,
taxa
Asian
montane
CHAO
from
species
(1995)
discussed the confusion
Sichuan),
described the first male
D.
According
of the Lao Chai
zhoui based
to
on
ZHOU’s
M. Hamalainen (pers.
specimen figured by
the available illustrations of trox,
or
ASAHINA
(1986)
com.),
(1996)
zhoui. Thus the
do
identity
D.M.
286
of the Vietnamese taxon,
land
as
well
as
(cf. HAmAlAINEN, 1998)
Recently,
tional
Dr.
park by
nam-Russia
same
I received for
Tropical
locality. Study
known
study
Alexander
locality
Figs
as
in
-
specimens
a new
Holotype 6:
holotype,4-VI-2004,
1-7. Davidius
solateral
view;
-
(5)
specimen,
collected in Ba Be
who has been
showed that
MONASTYRSKII
Vietnam,
lateral view;
anterior
n.
—
(3)
hamule;
-
anal
not
by
me
in the
represent any
SP. NOV.
National
6:
(1)
IV-1997,
Be,
Alexander
University, Hanoi;
Cuong leg. Deposited
holotype
do
they
na-
in the Viet-
working
1-7
Bac Can prov., Ba
Do Manh
monastyrskii sp.
segments 1-4,
from northern Thai-
is described here.
species
Zoology Collection., Vietnam
dominal
”
trox
be studied.
male Davidius
Figures
Material.
to
Monastyrskii,
DAVIDIUS
leg. Deposited
“
the material of
remains
Centre in Hanoi. Another male was collected
of these
Therefore
species.
a
Cuong
in
D.M.
head, laterofrontal
appendages, lateral view;
(6) posterior hamule;
—
—
Cuong
view;
—
(4)
(7) penis.
Monastyrskii
Paratype
—
1 S:
same
Collection.
(2)
anal
thorax and ab-
appendages, dor-
Davidius
Etymology.
The
-
species
terologist who first collected this
MALE.
brum
low
Head.
—
deep
after Dr Alexander L.
Monastyrskii,
a
lepidop-
Black with yellow markings (Fig.l). Labium black, la-
—
yellow
base. Anterior of frons with
at
a
large yel-
,
Thorax.
Prothorax
—
from
mesepisternum
to
slightly expanded
at
Abdomen.
a
9
base
spot
at
3-4)
with
(Fig.2);
superiors
curled process
at stout
3 with
on
and
—
8-12. Davidius
black with
hamule;
—
10 postnodals;
at
curved
the
Wings hy-
and
-
cells.
follows; segment 1
large marking
a
4 with
a
tiny
pos-
lateral
Anal appendages (Figs
conical and
divergent, carrying
black with
a
tiny
a
lateral spine
upward.
with
Martin
and abdominal
yellow
deep
on
extend-
pterostigma brown,
as
base; segment
wholly black.
inferiors
black.
underlying
yellow markings
2 with auricles
surface;
penis
fruhstorferi
marking
with 13 antenodals and 11
about 3.5-4
straw-yellow, stout,
the ventral
Gians of
Pinratana]: (8) thorax
covering
the other segments
dark
yellow marking
a
greenish-yellow
base; forewings
small lateral spot
a
base, apical part
Genitalia.
at
antenodals, and
centre
Mostly
tint
large lateral spot; segment
teriorly; segment
terior
—
the
black with
metepimeron (Fig,2). Legs entirely
light yellowish-olive
postnodals; hindwings with
with
nearly entirely
black with extensive
lobe; synthorax
aline with
Figs
287
n.
species.
mandibles
black
sp.
marking.
anterior
ing
is named
monastyrskii
6
two
parts,
[Thailand, Chiang Mai,
segments 1-3,
(11) posterior hamule; —
the inner
lateral
(12) penis.
view;
—
part
Doi
(9)
more
developed
than
Inthanon, 22-V-1996,
anal
appendages;
—
Coll.
(10)
an-
D M.
288
the
(Fig.7);
outer
anterior hamule of
curled hooks
two
spine
Cuong
spatular shape,
hamule
(Fig. 5); posterior
apex, anterior edge thicker than
at
and leaf-like
bearing
posterior,
bifid and
forming
pointed
recurved
small
a
upper
posterior
lobe rounded
(Fig.6).
Measurements
(in mm).
—
abdomen 28,
Hindwing 21;
unknown.
female
HABITAT.
(200-700
deeply
m
forest
Tropical
-
limestone
on
low and middle
at
range
elevations
a.s.l.).
DISCUSSION
D.
monastyrskii
ners, as
of the
well
synthorax.
lower third of the
and Davidius
feri
the
differsremarkably
n.
sp.
In D.
two
known Vietnamese conge-
(cf.
sp.
the broad lateral
monastyrskii
mesepisternum
trox
to
and
the
In other respects, i.e.
monastyrskii
in the
seems to
have
from the
structure
be close
to
a
extends from the
marking
metepimeron,
zhoui)
mesepisternum, clearly separated
nis D.
from its
from the other known Davidius species, by the pale colour pattern
as
whereas both
distinct
D. fruhstor-
‘7’-shaped marking
yellow patches
on
on
the sides.
of the anal appendages, hamuli and peD.
but there
fruhstorferi,
are
several clear
differences between them:
Anterior hamule with
section broader in D.
Posterior lobe of the
Front
D.
coxa
stouter
curled hooks in D.
but the leaf-like
fruhstorferi,
monastyrskii.
posterior
hamule broader in D.
with its anterior edge yellow in
D.
fruhstorferi.
fruhstorferi,
but entire black in
monastyrskii.
Anal
appendages pale-yellow
inferior
appendages
are
in D. fruhstorferi, whereas in D.
largely deep
monastyrskii
the
black.
ACKNOWLEDGEMENTS
I
am
grateful
to Dr ALEXANDER MONASTYRSKII for
HIKO SASAMOTO for the
am
provision
of
also thankful to Miss DANG THANH
tyrskii
and to Dr MATTI HAM
HOA,
ALAlNEN, who
adding some relevant information,suggested
feri
passing
who
helped
reviewed
many
helpful
me
me
the
to sketch the
sent
a
of material. I
figures
and edited the first two
ideas and
Mr AKI-
material, to
and identification
literature, correspondence
of D.
monas-
manuscript
specimen
of D.
drafts
fruhstor-
from Thailand.
REFERENCES
ASHAHINA, S.,
gists
ASH
from
AHINA, S.,
1994. Records of the
Nepal
and
Tombo
37(1/4):
collected
by Japanese
1990. The
Science
Museum, Tokyo,
gomphiddragonfliesof
China
Bull.
entomolo-
2-17.
1996. Records of the Northern Vietnamese Odonata taken by the
from the National
CHAO, H-f,
gomphid dragonfliesrecently
Darjeeling, 1.
Natn.
Sci.
expedition members
Mus., Tokyo (A) 22(1):
(Odonata: Gomphidae). Fujian
21-32.
Sci, &Technol.
Davidius
Publ.
CHAO, H-f.,
Wuyi
CHAO,
H-f.
House,
Fuzhou.
1995. New
Sci. J.
& Z.
Shaanxi
YANG,
R.
Etudes
Ernest
ZHOU, W-b.,
[Chin.,
—
little known
12: 1-47.
—
with
1904.
Engl, s.]
1995.
Leroux,
1986.
des
1.
(Odonata: Goraphidae).
[Chin. & Engl.]
A
new
1998. Additions
Liste
diverses.
289
n.
gomphid dragonflies from China,
species
of
gomphid dragonfly
province (Odonata: Gomphidae). Wuyi
HAMAlAINEN, M.,
MARTIN,
or
monastyrskii sp.
to the
Nevropteres
3. Recherches
sur
Thai
Sci. J.
gomphid
de ITndo-Chine.
Vhistoire
of the
12: 48-50.
fauna.
—
genus
[Chin.
Malangpo
Mission
Davidius from
&
Engl.]
15: 133-136,
Pavie Indo-Chine
naturelle de Vlndo-Chine
orientate,
1879-1895.
pp.
204-221,
Paris.
Description
of the male of Davidius
phidae). Odonatologica 15(1):
135-136,
trox
Needham,
1931
(Anisoptera;
Gora-