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mentum. Apex of mentum with triangular
medial tooth. Antenna 10-segmented; club
slightly shorter than other segments combined,
approximately equal to clypeal length.
Pronotum: Surface glabrous, sparsely punctate,
with moderate punctures. Marginal bead
weak laterally, absent apically and basally.
Elytron: Surface glabrous; longitudinal striae
weakly punctate, punctures moderate with
dark coloration; intervals sparsely punctate
to impunctate. Suture with distinct apical
spine (Fig. 5). Pygidium: Width approximately
2.4 times length medially. Surface
weakly rugose, weakly convex, glabrous except
near apex; setae short, tawny. Venter:
Thorax sparsely setose; setae cream-colored.
Mesothoracic process strongly produced, projecting
anteriorly past protrochanter; apex
rounded; shape conical-elongate, ventrally
flattened. Abdomen glabrous. Apical spiracles
not extruding. Legs: Protibia with 3 teeth in
apical half; first tooth largest, second, third
teeth sequentially smaller. Mesotibia and
metatibia widest medially. Protarsomeres 2-
4 wider than long, cup-shaped. Protarsomere
3-4 with internoapical stridulatory ridge.
Protarsomere 5 with internomedial tooth
bearing stridulatory ridge. Mesotarsomere
and metatarsomere 5 with internobasal
tooth. Unguitractor plate cylindrical, with 1
apical and 1 subapical seta. Modified
protarsal claw longer than protarsomere 5,
greatly thickened and elongate when compared
with other claw, dorsoventrally flattened,
apex unevenly bifurcate. Modified
mesotarsal and metatarsal claws elongated
with ventral tooth, not thickened. Male Genitalia:
Parameres 1.2 times longer than length
of phallobase. Parameres smooth, with sharp
lateral hook near apex (Fig. 18).
Female (n=26). Length 22.7-27.4 mm,
width 13.6-17.5 mm. As male except in the
following respects. Head: Antennal club approximately
equal to segments 2-7. Legs:
Protarsomere 3-4 without internoapical
stridulatory ridge. Protarsomere 5 with internomedial
tooth absent. Mesotarsomere and
metatarsomere 5 internobasal tooth reduced
to swelling or absent. Modified protarsal claw
with ventral tooth, not thickened.
MONOGRAPHIC REVISION OF PLATYCOELIA 65
DIAGNOSIS. This species is distinguished
from all other species in the genus Platycoelia
by the following combination of characters:
frontoclypeal suture complete; apex of clypeus
not reflexed; labrum with a broad, triangular
apical tooth strongly overlapping the mentum;
mentum with a distinct tooth curved
into the oral cavity; antenna 10-segmented;
protibia with 3 prominent teeth; elytral suture
distinctly yellow, with the apex forming
an acute spine; elytron without yellow, longitudinal
lines; elytral apices not capable of
completely covering the pygidium; metasternum
with a broad, reddish-brown medial
stripe; abdominal sternites reddish-brown;
parameres with the apex rounded, expanded;
parameres apicolaterally with a triangular
hook.
DISTRIBUTION (Fig. 47). Central to southern
Perú. Found primarily in the puna and
yungas regions of the Andes Mountains.
LOCALITY DATA. 43 specimens examined
from AMNH, CASC, DEIC, DJCC, HAHC,
ISNB, LACM, MGFT, SMTD, USNM, ZMHB,
ZSMC.
PERÚ (41). CUSCO (2): Vilcanota. LIMA (3):
Callanga. HUÁNUCO (4): Tingo María.
JUNÍN (26): Chanchamayo, La Merced,
Perené, Vitoc. NO DATA (6).
NO DATA (2).
One paralectotype is labeled “Bolivie
Ocobamba.” Since there are several localities
called Ocobamba in Perú but none in Bolivia
I considered this specimen to be from Perú
with no further data. One specimen labeled
“Zatzayacu, Ecuador” is considered to have no
data. This locality is far out of range for the
species and too low in elevation to support
populations of most Platycoelia species.
TEMPORAL DATA. January (1), March (4),
June (1), October (13), December (1).