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MONOGRAPHIC REVISION OF PLATYCOELIA 127
Sarayacu,” “F,” “puncticollis Ohs v. bilineata
Ohs.,” and “NOT A TYPE OF P.
PUNCTICOLLIS Det:A.B.T.Smith 2002.”
One female paratype at ABTS labeled “Ecuador
5033.” One female paratype at BMNH labeled
“Buckley,” “Equador,” “Fry Coll.
1905-100.,” and “Ohaus determ. Platycoelia n.
sp. 2 bei inflata Ohs.” Ohaus (1904b) also gave
the variety name “P. puncticollis var.
bilineata” to a specimen of P. traceyae. This
variety name is infrasubspecific, and is not an
available name regulated by the ICZN. Type
locality: Baeza, Napo, Ecuador.
HOLOTYPE. Male: length 19.5 mm, width
11.0 mm. Color of dorsal surface lime green;
head (adjacent to eye), pronotum and elytron
margins yellow; elytral intervals 3 and 5 with
yellowish-green longitudinal stripes. Ventral
surface yellow to lime green, metasternum
olive green. Body ovate, convex. Head: Dorsal
surface glabrous. Frons rugopunctate, clypeus
rugose. Frons not depressed. Frontoclypeal
suture complete. Clypeal apex broadly
rounded. Eyes separated by approximately
3.4 transverse eye-widths. Labrum moderately
punctate, with moderately large, setose
punctures, setae tawny. Apex of labrum with
acute, triangular, medial tooth, apex of tooth
separated from apex of mentum. Apex of mentum
with medial notch. Antenna 10-segmented;
club slightly longer than segments
2-7, approximately equal to frons. Pronotum:
Surface glabrous, moderately punctate, with
moderate punctures. Marginal bead weak laterally,
absent apically and basally. Elytron:
Surface glabrous; longitudinal striae not impressed,
punctate, punctures moderate with
dark coloration. Sutural apex angled, without
spine. Pygidium: Width approximately 2.2
times length medially. Surface weakly convex,
densely punctate; punctures moderate, setose
(near apex); setae long, tawny. Venter: Thorax
densely setose (glabrous medially), setae
cream colored. Mesothoracic process projecting
anteriorly to procoxa; shape weakly
subelliptical, apex rounded, dorsoventrally
flattened. Abdomen glabrous. Apical spiracles
not extruding. Legs: Protibia with 3 teeth in
apical half; apical 2 teeth subequal in size,
third tooth shorter. Mesotibia and metatibia
widest apically. Protarsomeres 2-4 wider than
long, cup-shaped. Protarsomere 4 with weak,
apical stridulatory ridge. Protarsomere 5
without internal tooth. Mesotarsomere and
metatarsomere 5 with internal swelling.
Unguitractor plate cylindrical, with 2 apical
setae. 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 and metatarsal claw elongate,
with weak ventral tooth, not thickened. Male
Genitalia: Phallobase approximately 1.3 times
longer than length of parameres. Paramere
with apex rounded, weakly expanded.
ALLOTYPE. Female: length 20.9 mm, width
12.1 mm. As holotype except in the following
respects. Legs: Protarsomere 4 without apical
stridulatory ridge. Modified protarsal claw
with ventral tooth, not thickened.
VARIATION. Male (n=5). Length 16.5-19.9
mm, width 9.1-11.6 mm (Fig. 67). Female
(n=3). Length 20.7-21.6 mm, width 10.8-12.1
mm. The paratypes differ from the holotype
and allotype in the following respects. Color
sometimes olive green. Head: Antenna sometimes
appearing 9-segmented. Elytron: Sutural
apex sometimes with weak spine.
ETYMOLOGY. Platycoelia traceyae is named
after my wife Tracey, who has always been
supportive of my work on scarab beetles.
DIAGNOSIS. This species is distinguished
from all other species in the genus Platycoelia
by the following combination of characters:
frons with a yellow, transverse ‘mask’ around
eyes; frontoclypeal suture complete; apex of
the labrum with a reduced, triangular tooth
not overlapping the mentum; mentum with a
medial notch; antenna 10-segmented; elytron
with a distinct, yellow, longitudinal line on
stria 5; elytral apices not capable of completely
covering the pygidium; apex of the
elytral suture without an acute spine; metasternum
and abdominal sternites green or yellow;
mesothoracic process projecting apically
to the procoxa; apical abdominal spiracle not