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MONOGRAPHIC REVISION OF PLATYCOELIA 139
vex. Head: Dorsal surface glabrous. Frons
moderately to densely punctate, clypeus
rugopunctate, punctures moderate. Frons not
depressed. Frontoclypeal suture complete.
Clypeal apex broadly rounded. Eyes separated
by approximately 4.3 transverse eyewidths.
Labrum densely punctate, with
moderately large, setose punctures, setae
tawny. Apex of labrum with acute, triangular,
medial tooth, apex of tooth weakly overlapping
apex of mentum. Mandibular scissorial
region with 2 teeth, molar region with strong
lamellae. Maxilla with 3 apical teeth, interior
2 teeth bifurcate. Apex of mentum with medial
notch. Antenna 10-segmented; club
slightly longer than segments 2-7, approximately
equal to length of frons. Pronotum:
Surface glabrous, moderately punctate, with
small or moderate punctures. Marginal bead
weak laterally, absent elsewhere. Elytron:
Surface glabrous; longitudinal striae weakly
impressed; intervals moderately punctate,
punctures moderate. Suture angled apically
without spine. Pygidium: Width approximately
1.8 times length medially. Surface
weakly convex, sparsely to moderately punctate;
punctures moderate, setose (near apical
margin); setae short, cream colored. Venter:
Thorax densely setose (except glabrous medially),
setae white. Mesothoracic process
strongly produced, projecting anteriorly to
procoxa; shape conical-elongate, apex
rounded; ventrally flattened. Abdomen
sparsely setose, setae white. Apical 2 spiracles
extruding, cylindrical. Legs: Protibia
with 3 teeth in apical half; 2 apical teeth
subequal in size, third tooth shorter.
Mesotibia and metatibia widest medially.
Protarsomeres 2-4 wider than long, cupshaped.
Protarsomere 3-4 with internoapical
stridulatory ridge. Protarsomere 5 with
internomedial stridulatory tooth. Mesotarsomere
and metatarsomere 5 without internal
tooth or swelling. Unguitractor plate
cylindrical, with 2 apical setae. Modified
protarsal claw with length greater than
protarsomere 5, thickened and elongate when
compared with other claw, laterally flattened,
apex unevenly bifurcate. Modified mesotarsal
and metatarsal claws elongated with ventral
tooth, not thickened. Male Genitalia: Phallo-
base approximately 1.4 times longer than
length of parameres. Parameres with apex
rounded, weakly expanded.
Female (n=99). Length 17.2-23.2 mm,
width 8.6-11.2 mm. As male except in the following
respects. Venter: Apical spiracles not
extruding. Legs: Protarsomere 3-4 without
internoapical stridulatory ridge. Protarsomere
5 without internal tooth. Modified
protarsal claw with ventral tooth, not thickened.
DIAGNOSIS. This species is distinguished
from all other species in the genus Platycoelia
by the following combination of characters:
frontoclypeal suture complete; apex of the labrum
with a broad, triangular tooth weakly
overlapping the mentum; mentum with medial
notch; antenna 10-segmented; elytron
with distinct, yellow, longitudinal lines on
striae 3 and 5; elytral apices not capable of
completely covering the pygidium; elytron
with ‘blotchy’ appearance; elytral suture yellow,
apex without acute spine; metasternum
dark brown to black (at least medially); abdominal
sternites with dark apical and basal
borders; mesothoracic process projecting
apically to the procoxa; apical abdominal spiracle
weakly protuberant; mesotarsomere 5
and metatarsomere 5 without an internal
tooth; parameres with the apex rounded, not
expanded.
DISTRIBUTION (Fig. 68). Andes Mountains
of central Bolivia.
LOCALITY DATA. 173 specimens examined
from AMNH, BCRC, CMNH, FMNH, HAHC,
MNHN, ZSMC.
BOLIVIA (172). COCHABAMBA (171):
Chapare, Cochabamba, Incachaca, Limbo,
Yungas de Totora, Yungas del Palmar, No
Data. SANTA CRUZ (1): Parque Nacional
Amboró.
NO DATA (1).
TEMPORAL DATA. February (11), September
(1), October (8), November (3), December
(1).