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136 THE TRIBE ONOIDERINI<br />
MALE. Elongate-ovate, subcylindriclll, clytra subconvex; head and pronotum<br />
dark reddish-brown or piceous, elytra paler; head, pronotwn, scutellum, and ex<br />
treme base of elytra grayish-yellow pubescent; remainder of elytru brown pubes<br />
cent, each elytron with three "narrow, short, oblique, white lines, the first a short<br />
distance behind humerus descending toward and nearly attaining suture at middle,<br />
the second just behind middle, shorter, less oblique, ascending toward but not at<br />
taining suture; third more apical, about as long as first, ascending toward suture and<br />
somewhat arcuate, a few indistinct, whitish maculae along lateral margin. Beneath<br />
dark reddish-brown, thinly clothed with grayish-yellow pubescence, this pubescence<br />
concentrated on abdomen to form a small, indistinct macula laterally on each seg<br />
ment. Legs dark or medium reddish-brown, thinly grayishyellow pubescent. An<br />
tennae with scape dark reddish-brown, remaining segments paler ; scape on basal<br />
twothirds and third segmcnt on basal onethird grayish-yellow pubescent, apices<br />
brown pubescent, fourth, sixth, eighth, and tenth on basal half whitish, remainder<br />
of these scgments and fifth, seventh, ninth and eleventh segments entirely brown<br />
pubescent.<br />
Head above minutely alutaceous, with a median impressed line from occiput to<br />
near middle of front; front subquadrate, narrowed somewhat abruptly ncar epi<br />
stoma, surface very finely, densely punctate, with scattered, coarse punctures; genae<br />
clongate, much wider on lower part, finely alutaceous, only very sparsely pubescent;<br />
eye with lower lobe much elongate, oblong, only feebly ovate, about one-third<br />
longer than gena ; antennal tubercles prominent, well separated, and produced at<br />
apex into a short, very robust tooth, directed upward. Pronotum transverse, apex<br />
subcqual t·o base in width, 'Sides feebly arcuate; a basal and an apical sulcus, basal<br />
one oblique laterally; entire surface with scattered coarse punctures, at sides near<br />
base with setigerous punctate granules; unarmed laterally. Scutellum transverse,<br />
sides straight, feebly oblique, apex subtruncate. Elytra with sides nearly parallel<br />
to apical third, thence rounded to apices which are separately rounded; each ely<br />
tron subgibbose at base and with a wide shallow depression following the line of<br />
the anterior margin of first white line; entire basal half of surface with moderately<br />
spaced, coarse, decp punctures, thence to apex punctures only very slightly smaller;<br />
humeri prominent, anterior margin broadly arcuate, angle with a feeble, obtuse<br />
tubcrcle. Prosternum abruptly widened behind middle; mesosternal process decply<br />
emarginate at tip; fifth sternite about one-fourth longer than fourth, at apex feebly<br />
fringed and subtruncate. Procoxae globose, with a well formed, robust uncus; pro<br />
femora robust, clavate, rugose on basal third on all four surfaces, other femora<br />
not as robust and more abruptly clavate; protarsi feebly dilated. Antennae about<br />
one-third to one-half longer than body; scape rather slender, reaching only to<br />
apical quarter of pronotum, gradually clavate, beneath at base with two or three<br />
deep grooves, upper surface with small punctures, becoming finer apically; third<br />
segment slender, moderately cun'ed, about twice length of scape, remaining seg<br />
ments gradually shorter; moderately fimbriate on first, second, third, fourth, and<br />
slightly so on fifth segments.<br />
FEMALE. More robust; antennal tubercles only very feebly produced at apex;<br />
procoxae very feebly, obtusely tubercled; fifth sternite nearly twice as long as<br />
fourth, at apex deeply, angularly emarginate and with a triangular impression, the<br />
base of which is broad and deep (forming a sulcus along apical edge) and apex