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162 BULLETIN OF THE UNIVERSITYOF NEBRASKA STATE MUSEUM<br />

pronotum, scutellum, and elytron sometimes<br />

with yellow margin. Ventral surface olive<br />

green to reddish-brown. Body ovate, strongly<br />

convex. Head: Dorsal surface glabrous. Frons<br />

densely punctate, clypeus rugose, punctures<br />

moderate. Frons not depressed. Frontoclypeal<br />

suture complete. Clypeal apex broadly rounded.<br />

Eyes separated by approximately 4.4 transverse<br />

eye-widths. Labrum densely punctate,<br />

with moderately large, setose punctures, setae<br />

tawny. Apex <strong>of</strong> labrum with small, triangular,<br />

medial tooth, apex <strong>of</strong> tooth separated from apex<br />

<strong>of</strong> mentum. Mandibular scissorial region with<br />

1 tooth, molar region with strong lamellae.<br />

Maxilla with 3 teeth, inner 2 teeth bifurcate.<br />

Mentum with apicomedial notch, basomedially<br />

with two deep impressions on either side <strong>of</strong> midline<br />

(Fig. 33). Antenna 10-segmented; club approximately<br />

equal to segments 2-7, slightly<br />

shorter than length <strong>of</strong> frons. Pronotum: Surface<br />

glabrous, densely punctate, with small<br />

and moderate punctures. Marginal bead weak<br />

laterally, absent elsewhere. Elytron: Surface<br />

glabrous; longitudinal striae weakly impressed,<br />

punctate; punctures moderate; intervals<br />

moderately punctate, punctures small.<br />

Suture apically angled, without spine. Pygidium:<br />

Width approximately 2.0 times length<br />

medially. Surface weakly convex, disc impunctate<br />

(sparsely punctate near apex); punctures<br />

moderately large, setose; setae short, tawny.<br />

Venter: Thorax densely setose (except moderately<br />

setose medially), setae tawny. Mesothoracic<br />

process weakly produced, projecting<br />

anteriorly weakly past mesocoxa; shape conical.<br />

Abdomen sparsely setose, setae tawny.<br />

Apical spiracles not extruding. Legs: Protibia<br />

with 3 subequal in size teeth in apical half.<br />

Mesotibia and metatibia widest medially.<br />

Protarsomeres 2-4 wider than long, cup-shaped.<br />

Protarsomere 3-4 with internoapical stridulatory<br />

ridge. Protarsomere 5 with internomedial,<br />

stridulatory tooth. Mesotarsomere and metatarsomere<br />

5 without internal tooth. Unguitractor<br />

plate cylindrical; with 1 apical, 1 subapical seta.<br />

Modified protarsal claw with length greater<br />

than protarsomere 5, thickened and elongate<br />

when compared with other claw, laterally flattened,<br />

apex unevenly bifurcate. Modified<br />

mesotarsal and metatarsal claws elongated<br />

with ventral tooth, not thickened. Male Geni-<br />

talia: Parameres approximately 1.3 times<br />

longer than length <strong>of</strong> phallobase. Parameres<br />

with apex rounded, weakly deflexed laterally.<br />

Female (n=17). Length 25.6-34.0 mm,<br />

width 14.1-17.6 mm. As male except in the following<br />

respects. Legs: Protarsomere 3-4 without<br />

internoapical stridulatory ridge. Protarsomere<br />

5 without internal tooth. Modified protarsal<br />

claw with ventral tooth, not thickened.<br />

DIAGNOSIS. This species is distinguished<br />

from all other species in the genus Platycoelia<br />

by the following combination <strong>of</strong> characters:<br />

color mainly green, pronotum with dark<br />

maculations; frontoclypeal suture complete;<br />

apex <strong>of</strong> the labrum with a reduced, triangular<br />

tooth not overlapping the mentum; mentum<br />

with a medial notch, base with deep pits<br />

on either side <strong>of</strong> the midline; antenna 10-segmented,<br />

club not longer than the other segments<br />

combined; elytral apices not capable <strong>of</strong><br />

completely covering the pygidium; apex <strong>of</strong> the<br />

elytral suture without an acute spine; mesothoracic<br />

process projecting apically past the<br />

mesocoxa; apical abdominal spiracle not protuberant;<br />

mesotarsomere 5 and metatarsomere<br />

5 without an internal tooth; parameres<br />

with the apex rounded, not expanded.<br />

DISTRIBUTION (Fig. 73). Andes Mountains<br />

from southern Perú to central Bolivia.<br />

LOCALITY DATA. 23 specimens examined<br />

from BMNH, CMNH, HAHC, MCZC, MGFT,<br />

MNHN, ZMHB, ZSMC.<br />

PERÚ (4). APURÍMAC (2): Abancay, No Data.<br />

JUNÍN (1): Tarma. NO DATA (1).<br />

BOLIVIA (18). COCHABA<strong>MB</strong>A (7): Incachaca,<br />

No Data. LA PAZ (10): Cuticucho, La Paz. NO<br />

DATA (1).<br />

NO DATA (1).<br />

One specimen labeled “Chile Puerto<br />

Arturo” was considered to have no data. This<br />

locality is far out <strong>of</strong> the known range <strong>of</strong> the<br />

genus Platycoelia.<br />

TEMPORAL DATA. April (1), May (1), December<br />

(7).

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