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MONOGRAPHIC REVISION OF PLATYCOELIA 113
moderately large, setose punctures, setae
tawny. Apex of labrum with triangular, medial
tooth; apex of tooth broadly truncate, extending
past apex of mentum. Apex of
mentum with triangular medial tooth curved
into oral cavity. Antenna 10-segmented; club
slightly shorter than other segments combined,
slightly shorter than length of frons.
Pronotum: Surface glabrous, densely punctate,
with small or moderate punctures. Marginal
bead weak apicolaterally, absent
elsewhere. Elytron: Surface glabrous; longitudinal
striae weakly punctate, punctures moderate
with dark coloration; intervals densely
punctate, punctures small. Suture angled
apically, without spine. Pygidium: Width approximately
3.3 times length medially. Surface
weakly convex, moderately to densely
punctate; punctures moderate, glabrous except
near apex; setae short, tawny. Venter:
Thorax moderately setose (except medially on
metasternum), setae white. Mesothoracic process
strongly produced, projecting anteriorly
to protrochanter; shape conical-elongate, apex
rounded; ventrally flattened. Abdomen glabrous.
Apical spiracles not extruding. Legs:
Protibia with 3 subequal in size teeth in apical
half; apical 2 teeth longer; third tooth
weak, obsolete. Mesotibia and metatibia widest
medially. Protarsomeres 2-4 wider than
long, cup-shaped. Protarsomere 4 with
internoapical stridulatory ridge. Protarsomere
5 with internomedial stridulatory
tooth. Mesotarsomere and metatarsomere 5
with internobasal tooth. Prounguitractor
plate cylindrical, with 2 subapical setae.
Mesounguitractor plate and metaunguitractor
plate cylindrical, with 2 apical setae. Modified
protarsal claw with length approximately
equal to protarsomere 5, thickened and elongate
when compared with other claw, laterally
flattened, apex unevenly bifurcate with 1 bifurcation
twisted beneath the other in ventral
view. Modified mesotarsal and metatarsal
claws elongated with ventral tooth, not thickened.
Male Genitalia: Phallobase 1.9 times
longer than length of parameres. Parameres
dorsoventrally flattened, apicomedially acute.
ALLOTYPE. Female: length 33.1 mm, width
19.0 mm. As male except in the following re-
spects. Legs: Protarsomere 4 without internoapical
stridulatory ridge. Protarsomere 5
without internal tooth. Mesotarsomere and
metatarsomere 5 with weak internobasal
swelling. Modified protarsal claw with ventral
tooth, not thickened.
VARIATION. Male (n=9). Length 28.0-32.2
mm, width 17.0-18.9 mm. Female (n=1).
Length 31.6 mm, width 19.3 mm. Paratypes
similar to holotype and allotype except in the
following respects. Color of body sometimes
greenish-yellow or darkened to dark green or
brownish-green. Pygidium: Disc moderately
setose.
ETYMOLOGY. I am very pleased to name
Platycoelia paucarae after my friend and colleague
Aura Paucar-Cabrera. Aura has had
an interest in Platycoelia for many years and
has graciously provided a wealth of information
for this revision. This species is also native
to Ecuador, which is Aura’s homeland.
DIAGNOSIS. This species is distinguished
from all other species in the genus Platycoelia
by the following combination of characters:
clypeal apex weakly reflexed; frontoclypeal
suture complete; labrum with a well-developed,
truncate apical tooth strongly overlapping
the mentum; mentum with a distinct
tooth curved into the oral cavity; antenna 10segmented;
pronotum surface densely punctate
with mix of small and moderate
punctures; elytron without distinct, yellow,
longitudinal lines; elytral apices capable of
completely covering the pygidium; pygidium
entirely setose; mesothoracic process light in
color than the metasternum; metasternum
with a dark medial patch; abdominal sternites
dark; protibial apical 2 teeth adjacent, located
in the apical quarter of the protibia;
protibial spur noticeably shorter than the adjacent
tibial apex; protarsomere 3 in males
without a distinct apical stridulatory patch;
modified protarsal claw in males laterally
flattened; mesotarsomere 4 and metatarsomere
4 in males with an apical stridulatory
ridge; mesotarsomere 5 and metatarsomere 5
with an internobasal tooth; parameres with
the apex dorsoventrally flattened.