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174 BULLETIN OF THE UNIVERSITYOF NEBRASKA STATE MUSEUM
ened with apex unevenly bifurcate as in all
other species of Platycoelia.
DIAGNOSIS. This species is distinguished
from all other species in the genus Platycoelia
by the following combination of characters:
dorsal color black; frontoclypeal suture complete;
eyes separated by 2.8 transverse eyewidths;
apex of the labrum with a reduced,
triangular tooth not overlapping the mentum;
mentum with a medial notch; antenna 10-segmented;
elytron without distinct, yellow, longitudinal
lines; elytral apices not capable of
completely covering pygidium; apex of the
elytral suture without an acute spine; mesothoracic
process nub to weakly projecting
apically; apical abdominal spiracle not protuberant;
mesotarsomere 5 and metatarsomere
5 without an internal tooth; parameres with
the apex rounded, not expanded.
DISTRIBUTION (Fig. 73). Chanchamayo,
Perú is the only known locality for this species.
The locality data is from a century old specimen
and the locality may not be accurate.
LOCALITY DATA. 2 specimens examined
from SMTD, ZMHB.
PERÚ (2). JUNÍN (1): Chanchamayo. NO
DATA (1).
57. Platycoelia aenigma new
species
(Fig. 72)
TYPE SPECIMEN. Holotype male at BMNH
labeled “Amaz Nauta” on upperside and “58.
77.” on lower side of a round, blue label. It is
also labeled “Ohaus determ Callichloris n. sp.
M.” Malcolm Kerley, collection manager at the
BMNH, informed me that the numbers on the
round label refers to an accession number.
The entry for the numbers “58. 77.” is “1858-
77, 346 coleoptera collected from Amazon
Nautas and Chapapanga, July 9th, collected
by Degand.” This information is vague but
confirms that the specimen was probably collected
on the east slope of the Andes Moun-
tains in northern Perú. Type locality: northern
Perú.
HOLOTYPE. Male: Length 17.6 mm, width
10.5 mm. Color dorsally light green with light
brown pronotal maculations and elytron. Ventrally
brownish-yellow. Body ovate, convex.
Head: Dorsal surface sparsely setose, setae
tawny. Frons sparsely punctate (base) to
densely punctate (apex), clypeus densely
punctate, punctures moderately large to moderate.
Frons weakly depressed. Frontoclypeal
suture complete. Clypeus trapezoidal with
strongly reflexed apex. Eyes separated by 5.0
transverse eye-widths. Labrum moderately
punctate, setose; setae tawny. Apex of labrum
with minute, triangular, medial tooth, apex of
tooth separated from apex of mentum. Apex
of mentum with medial notch. Antenna 10segmented;
club approximately equal to segments
1-7, slightly longer than length of
frons. Pronotum: Surface glabrous, sparsely
punctate, with moderate punctures. Marginal
bead present laterally, absent apically and basally.
Elytron: Surface glabrous; longitudinal
striae weakly impressed, punctate; punctures
moderate; intervals impunctate. Suture
evenly angled apically, without spine. Venter:
Thorax densely setose, setae tawny. Mesothoracic
process reduced, not projecting anteriorly
past mesocoxa. Legs: Protibia with 3
teeth in apical half; apical 2 teeth close together,
longer; third tooth shorter. Mesotibia
and metatibia widest medially. Protarsomeres
2-4 wider than long, cup-shaped. Protarsomere
3-4 with internoapical stridulatory
ridge. Protarsomere 5 without internal tooth.
Mesotarsomere and metatarsomere 5 without
internal swelling or tooth. Unguitractor plate
cylindrical, with 1 apical, 1 subapical seta.
Modified protarsal claw with length approximately
equal to protarsomere 5, greatly thickened
and elongate when compared with other
claw, dorsoventrally flattened, apex unevenly
bifurcate. Modified mesotarsal claw slightly
thickened, elongate, apex unevenly bifurcate.
Modified metatarsal claw elongate, with ventral
tooth, not thickened.
The entire abdomen of this specimen is
missing.