species of.Argia garrisoni sp. 134 currently

Odonalologica 20(3):
I,
September
337-342
1991
Argia garrisoni spec. nov. from Mexico
Coenagrionidae)
(Zygoptera:
J.J. Daigle
Department
of Environmental
2600 Blair
Regulation,
United
Received
A.
garrisoni
3,
is described
Gainesville, FL, USA)
State
Mexico,
San Luis
chihuayan; allotype $: Mexico,
Road, Tallahassee,
/ Accepted April 26,
1991
(holotype ft:
n.
sp.
April
Stone
of San
32399-2400,
compared
1991
Luis
Rio
Potosi,
Hui-
Micos; deposited at FSCA,
Cascadas
Potosi,
and
FL
States
with its closest
relative,
A. calida
(Hagen).
INTRODUCTION
DAVIES & TOBIN
taxonomic work
garrisoni
increases
n.
sp.
species of. Argiaand indicated that much
listed 133
(1984)
remains
be done within the
to
the
total
134
to
Material.
—
Huichihuayan,
Holotype
off
Cascadas
same
of Ciudad
Ciudad
Valles,
5
as
NE
of Ciudad
$): same
data
as
24-
VI-1990,
I
—same
Harp leg.;
data,
but
—
El Salto
—
The
—
of
collections
of Jerrell
Gonzalez
J.
Daigle,
Soriano,
and
off
3 <3,2$
—
San
Rio
San
Rio
Horsetail
Rio
in
(KJT);
Luis
<3 (KJT), 5 $
San Luis
Potosi,
of town of
Mexico,
25-V1-I990, K.J. Tennessen
Las Cascadas
Rio
Coy,
Luis
San
(KJT) leg.;
E. Gonzalez Soriano
Potosi,
Potosi, 12-V1-1963,
Ramos,
Falls,
W.
5
—
Allotype $:
-
(EGS)
off Hwy
Park, Tamasopo,
85,
S
W of
Corona,Tamaulipas, Hwy 101,Guemes,22-V-l984,1
Luis
Nuevo
Nuevo
Gainesville,
Thomas
Huichihuayan headwater, W
Hwy 85,
Leon,
Leon,
and the El Salto Falls
Arthopods (FSCA)
Collection
Enrique
—
—
Falls,
holotype, allotype,
Potosi,
Daigle (JJD) leg.;
holotype, 6 $ (JJD),
$ (KJT);
15-V1-1963,4<5;
Donnelly (TWD) leg.;
(TWD).
J.J.
Valles,
allotype, 4$, (JJD),
Valles,26-V1-1990,1 2 (KJT);
G.W.
T.W.
data
San Luis
Mexico,
Hwy 85, 23-V1-1990,
Micos,
—Paratypes (37 $,
$,
this
12
Figures 1, 3, 5,6, 8, 10,
—
of A.
in
GARRISONI SPEC. NOV.
ARGIA
leg,;
species
is unknown.
genus. The larva
profuse
Potosi,
genus. The addition
currently recognized
The
Donnelly, Sidney
Ken J. Tennessen.
are
I
S of
35 km S of
paratypes
Florida.
4
3 km
$
leg.;
Monterey, 6-IX-I962,3$
deposited in the
remaining
W.
R.E. Woodruff
Allende, 2-IX-1963,2Q
Dunkle,
Florida State
paratypes
Rosser
W.
are
in
the
Garrison,
J.J.
338
Etymology.
—
The
species
Daigle
is named for Rosser W. Garrison
in honor of his contributions to
Neotropical odonatology.
MALE
(holotype).
of head black,
—
Head:
Eyes
in life
purple dorsally, yellow ventrally. Top
postocular spots purple, pale
streak lateral
to
each lateral
ocellus;
anterior surface of frons, anteclypeus, and postclypeus purple; genae, mandibles,
and labrum
Figs.
4,
pale purple,
black basal
1-7. Male structural features of.Argia
7): (1-2) Head,
frontal
(left superior dissected),
view.
a
view; —
transverse
view;
on
labrum; labium light tan;
garrisoni sp. n,(Figs 1,3,5,6) and
(3-4) Segment
dorsolateral
line
—
10 and
(6-7)
A. calida
appendages, dorsal view;
Abdominal
segments
8-10 and
—
(Hag.) (Figs 2,
(5) Appendages
appendages, lateral
Argia garrisoni sp.
antennae,
fronto-clypeal
Thorax:
medially, posterior
lobe
black
in anterior half and
black
metapleural
and
purple,
—
13 in
1
Similar
basal
Segment
with
purple posteriorly; metepisternum purple
which is
stripe
forked
slightly
with
purplish
thin
a
overtones
dorsally.
black with tibial
calida (Hagen).
Argia
to
Veins black,
rings)
a
9
basal
narrow
purple
on
light
surface
extensor
light
crossveins in fore-
postnodal
14
brown
2; segments
ring
with ends
on
pterostigma diamond-shaped,
ring
with basal black
apical
3-7 with
7 dark
black basal
thin black basal line and black
-shaped
black in
mesinfraepistemum purple, mesepimeron
line, melepimeron pale yellow
dorsal spot
black and
slash.
lower
Black, large purple apical ring expanded ventrally
—
large purple
areas
(Fig. 1).
lateral purple spot, anterior lobe pale
cells.
Abdomen.
light purple
large
light purple, legs
hindwings.
l /z
a
black.
armature
overlying
a
black
Coxae
—
Wings.
wings,
1,
sutural
metepimeral
a
Legs.
of head black
rear
nearly erect, propleuron purple; mesepistemum
half, purple laterally,
medial
and
suture
Pronotumblack with
—
339
n.
purple;
with
purple
10
laterally,
dorsum
to
8
with lower lateral
distinctive black
Segment
area.
corners;
extending upward
a
segment
on
latero-ventralareas and
pale
purple dorsally
basal black
apically
mid-lateral
area
with
a
saddle-
posteriorly (Figs
and
3, 6).
Caudal
appendages (Figs 3, 5, 6)
similar
very
A. calida but
to
dorsally superior appendages slightly bifid;
robust. Viewed
bifid, extending beyond superiors
about the
same
length
slightly
inferior
as
the
superiors
lower arm of the inferior slightly longer than the upper
segment 10; the
purplish
oval knobs
broad rounded
approaching
than broad
inner
arm
(Fig. 3).
outer arm
Viewed
outer arm (Fig.
of the
5).
arm more
Viewed
arm
narrower
arm
tori
parallel-sided
and
close
laterally appendages
brushes upper
superior appendage
of inner
edge
than 3 times
from
arm,
bifid with
dorsolaterally superiors deeply
inflateddorsally. Outer
blunt apex. Inner
more
appendages
more
slender
together, tip
of inferior
of
appendage
(Fig. 6).
(mm).
Measurements
—and
FEMALE
face
(allotype).
same as
Thorax.
purple
of
Total
length including appendages 41,
abdomen
—
32,
—
forewing 24,
hindwing 23.
Coloration
Metepimeral
mesostigmal plates
wide. Lower inner
Legs.
—
Head;
holotype except
—
areas.
—
Dull
Abdomen.
—
segments 3-7 and
margin
in
black
stripe
with
to
some
male.
on
Top
of head and
postclypeus.
brownish undertones in the
much reduced. Posterior medial borders
of lobes entire
armature
as
obscure brown spots
holotype
projecting
(Fig.
with variable black
Similar
a
two
coloration same
raised into elevated,
yellow
and tibiae. Tarsi and
as
Eye
lobes that
are
higher
than
12).
extensor
and flexor
stripes
on
femora
black.
holotype
pale yellow
basal
but with
stripe
larger pale
on
lateroventral
areas
on
ovipositor. Dorsally, segment
8
340
J.J.
with
mostly purple
which
area
basal
extends
ven-
(Fig.
trally
black
into
projects
area
peak
(Fig.
with
8).
in
the
has
area
black
amounts.
black
basal
deep U-shaped
a
with
concavity
its
adjoin
ning peaks smoothly
ded. Viewed
to
way
such
reach halfthen
8,
segment
laterally along
10
ment
roun-
laterally,
adjoining peaks
extend
9
Segment
equal
Dorsally,
basal
lateral
a
and
purple
areas
Viewed
10).
this
laterally,
wide
a
black
bowl-shaped
the
to
of
dages. Top
purple (Fig.
Wings.
seg-
appen-
segment 10
10).
—
As
16
type except
crossveins in
in
holo-
postnodal
forewings,
14
8-13. Female
Figs
in
hindwings.
(Figs 8,
Measurements
Total
ges
(mm).
38, —
abdomen
and
—
30,
10,
structural
and A.
12)
Abdominal segments
length including appenda-
wing 24,
Daigle
view; -
8-10,
AMONG PARATYPES.
some
length of $
24-25; —
—9 14-16, -
light purplish
ranges
from
hindwing $
hindwing $ 13-15,
A. garrisoni sp.
arm
The
body
of the
outer
edge
II,
(10-11)
sp.
n.
13); (8-9)
same,
dorsal
view.
on
segment 8
38-41, —
22-24, —
—
9
n.
is
size and
most
$ 37-39; —
mostly
tan
and
length
in
allosome
thoracic coloration
abdomen
$ 30-33, —
postnodal crossveins
$ 29-31;
in
—
forewing
forewing$
of <5
14-17,
13-15.
WITH ARGIA CALIDA
similar to A. calida,
of the inner arm is
A. calida. When viewed
22-24; —
9
appendages
superior appendage
holotype
to
is shorter in
overtones.
COMPARISON
ges.
view; —
lobes, frontal
similar
Paratypes
—
males. The immature El Salto Falls female has the
brushed with
9
Argia garrisoni
fore-
—
type. The distinctive black lateral slash
23-25, —
lateral
(12-13) Mesostigmal
of
(Hag.) (Figs 9,
hindwing 23.
VARIATION
The total
features
calida
are
is
more
more
laterally,
especially by
slightly larger
robust
dorsally
parallel-sided
the
in A.
the male
garrisoni.
than in A.
appendaThe
outer
calida. The
towards the blunt apex than in
appendages
are
wider
apart
with the
tips
Argia garrisoni sp.
noticeable in A. calida
The
blue
bright
(Fig. 7).
of A. calida
areas
abdomen in A. calida is black with
Segment
A.
8 is black in A. calida but
garrisoni.
clypeus, covering
purple
suture
dorsal dot
segment
on
the black
purple,
is black
fronto-clypeal
areas
in A.
with
does
area
reach the
not
to
the
In A.
(Fig. 2).
The
clypeus.
blue in A. calida. The small blue
garrisoni,
2 in A. calida is
(Fig. 7).
of the head extend down
of the face is blue
rest
The
garrisoni.
and 10 blue above
distinctive black lateral slash in
a
top
on
of the frons; the
most
the frons is
garrisoni
only segments 9
In A. calida the black
in A.
replaced by purple
are
i
more
341
n.
replaced by
a
in A.
larger purple spot
garrisoni.
the females of A.
Structurally,
lobes
mesostigmal
entire
or
are
smooth in A.
lower inner
margin
enables the lobe
concave
garrisoni.
The lobes in A.
However,
A. translata has
A.
The lobes
garrisoni.
and A. calida are
are
garrisoni
are
margin
shorter, wider than high, with the
(Fig.
This
13).
concavity
the dorsal thoracic carina in A. calida but
similar
The
very similar.
than wide with the inner
indented in A. calida
or
overhang
to
garrisoni
elevated, higher
more
in A.
not
the lobes in A. translata Hagen.
to
tubercles which do
nearby mesepistemal
exist in
not
garrisoni.
Female A.
garrisoni
similar to the
areas,
lateral black
segment 9
shows
V-shaped
with
CALVERT’S
aa
Pale
b
Face,
as
has
garrisoni
key (1902)
stripe
antehumeral
Face,
blue in the
a
A.
The black
garrisoni.
This
in A. calida. The
major pale
comparatively
more
dorsal pattern
is
concavity
ovipositor
on
more
is all black in
large basal, pale yellow stripe.
to.
Argia,
line
Couplet E,
aa on
p.
70,
can
be modified
follows;
antehumeral
one-third
stripe,
and
wide
as
as
abdominal
dark
middorsal, inferior appendages bifid,
segments
9
and
10
mostly blue; segment
8
antehumeral
entirely
2. calida
.'.
black
bb
in
deep concavity
sharper adjoining peaks
A. calida but A.
for the males
a
(Figs 9, 11).
segment 9
on
are
males. Female A. calida show
respective
dorsal and
but female A. calida
purple
are
stripe, segments 9
and 10
mostly purple;
segment 8
purple
with
a
lateral black
3.
slash
garrisoni
BIOLOGY
The
habitat of A.
waterfalls in the
the
States
chihuayan,
A.
Tamaulipan
of Nuevo
sunny
males
areas.
from the river in
roots.
were
Leon,
A. calida and A.
garrisoni
river’s
garrisoni
appears
to
be shallow
spring-fed
San
Luis
garrisoni
perched openly
Potosi
occurred
on
fallen
and
Tamaulipas.
together
tree
seen
were
in
heavy, shady
widely
scattered
At
Rio
Hui-
branches in the middle of the
dry, shady gullies, usually perching
Some A. calida were
with
but in different habitats.
In contrast, the secretive A. calida males
few in number and
rivers
scrub forest of northeast Mexico. Records exist for
on
the
were
underbrush. A.
on
the rivers.
found
ground
or
away
on tree
garrisoni males
The females
were
342
J.J.
found in brush away from the
Other
fissa Selys)
Ris and
Odonata
companion
and A. translata
Phyllogomphoides
Daigle
water.
ovipositing pairs
were numerous
Hagen.
suasus
A few
of
Argia
cruising Erpetogomphus
Selys highlighted
the
sp. (nr
constrictor
assemblage.
ACKNOWLEDGEMENTS
I thank
comments
Drs SIDNEY
and
review.
W.
DUNKLE,
Also,
I
thank
ROSSER W. GARRISON and KEN J. TENNESSEN for
Ms
HOLLY
POWLESS
for
typing
and
organizing
the
manuscript.
REFERENCES
CALVERT, P.P.,
DAVIES,
1902.
Neuroptera. Biologin
D.A.L. & P. TOBIN,
(
species of Odonata.
Vol.
I.
1984.
The
cenl.-am..
pp.
dragonfliesof
69-74.
the world:
Zygoptera, Anisozygoptera.
a
systematic
SIO. Utrecht.
list
of the
extant