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72 BULLETIN OF THE UNIVERSITYOF NEBRASKA STATE MUSEUM
1918:178 [catalog listing]; Blackwelder
1944:247 [checklist]; Machatschke 1965:57, 58
[cited as type species for Platycoelia, catalog listing];
Machatschke 1972:302 [catalog listing].
TYPE SERIES. Platycoelia valida Burmeister
lectotype female at MLUH labeled a)
“valida x Riche Nova Granad” (green label
with black border, handwritten), b) “PLATY-
COELIA VALIDA BURMEISTER F LECTO-
TYPE A.B.T.SMITH 2001” (red label,
handwritten and typeface), c) “MLU Halle
WB Zoologie S.-Nr. 8/3/10 T.-Nr.” (typeface
and handwritten). Lectotype here designated.
See Methods and Materials section for
a statement of taxonomic purpose. The existence
and location of other specimens from
Burmeister’s original type series are unknown.
Type locality: Colombia.
DESCRIPTION. Male (n=118): length 21.3-
26.0 mm, width 12.9-16.2 mm (Fig. 49). Color
light green (occasionally yellow) with thick
yellow marginal band along basal half of
elytral interval 2, lateral margin of elytron,
medial base of elytron; yellow tarsi, head margins,
portions of legs. Body ovate, strongly
convex. Head: Dorsal surface glabrous. Frons
sparsely punctate, clypeus densely punctate,
punctures moderate. Frons not depressed.
Frontoclypeal suture complete. Clypeal apex
broadly rounded. Eyes separated by approximately
4.0 transverse eye-widths. Labrum
sparsely punctate, with moderately large, setose
punctures, setae tawny. Apex of labrum
with triangular medial tooth, apex of tooth
weakly truncate, extending past apex of mentum.
Apex of mentum with triangular medial
tooth curved into oral cavity (Fig. 1). 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 impunctate. Suture with
distinct apical spine (sometimes worn down)
(Fig. 6). Pygidium: Width approximately 2.5
times length medially. Surface rugose, weakly
convex, glabrous except near apex; setae
short, tawny. Venter: Thorax sparsely setose,
setae white. Mesothoracic process strongly
produced, projecting anteriorly to protrochanter;
apex rounded; shape conical-elongate,
ventrally flattened. Abdomen glabrous.
Apical spiracles not extruding. Legs: Protibia
with 3 teeth in apical half; 2 apical teeth
subequal in size, third tooth weak. Mesotibia
and metatibia widest medially. Protarsomeres
2-4 wider than long, cup-shaped. Protarsomere
3-4 with internoapical stridulatory
ridge. Protarsomere 5 with internomedial
stridulatory tooth or swelling. Mesotarsomere
and metatarsomere 5 with internobasal tooth.
Unguitractor plate cylindrical, with 1 apical,
1 subapical seta. Modified protarsal claw with
length approximately equal to protarsomere
5, thickened and elongate when compared
with other claw, dorsoventrally flattened,
apex unevenly bifurcate (Fig. 12). Modified
mesotarsal and metatarsal claws elongated
with ventral tooth, not thickened. Male Genitalia:
Parameres 1.2 times longer than length
of phallobase (Fig. 26). Parameres smooth,
with 3-8 strong lateral grooves at apex.
Female (n=63). Length 24.1-29.0 mm,
width 15.1-17.7 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 without
internal tooth or swelling. 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
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 dorsally green; elytron with an apex
forming a weak nub or spine; elytron with
yellow, longitudinal lines on interval 2 and
base of striae 1; elytral apices not capable of
completely covering the pygidium; mesothoracic
process, metasternum, and abdominal
sternites uniformly green to yellow; parameres
with the apex rounded, expanded;