READING PUBLIC MUSEUM AND ART GALLERY

28 THE TRIBE ONCIDERINI
the bassi two-thirds of third and basal half of following segments annulate with
hoary; scape fuscous, lulvous pubescent.
Head minutely, densely punctate, with a median impressed line from occiput
to epistorna; front narrowed above, sides straight, nearly parallel, between antennal
tubercles narrowly concave, surface finely, densely punctate ; genae vertical
minutely, densely punctate, with 8parse, fine punctures interspersed; eye with
lower lobe oblong, not quite equal in height to gena; antennal tubercles well separ­
ated, prominent, briefly produced at apex into a short, broad tooth. Pronotum
strongly transverse, sides feebly arcuate, distinctly narrowing to apex, unarmed;
apical transverse sulcus broad and indistinct, baml one more deeply impressed,
coalescent with tbe lateral oblique oncs; disk with five distinct, subequal, prominent
tubercles in a nearly straight line, the median one placed a little more posteriorly,
baS3l half finely and very sparsely punctate. Scutellwn transverse, sides slightly
oblique, arcuate ; apex broadly and distinctly arcuate, not notched nor impressed
at middle. Elytra with sides gradually narrowing to apices, which are separately
rounded; basal gibbosity broad and prominent, narrowing apically, slightly oblique,
irregularly punctate, anterior to each nre two rows of widely spaced granules (about
two granules to a row), remainder of base ocarsely pUllctate, punctures gradually
becoming smaller and obsolete beyond middle; disk posteriorly with three or lour
costae; humeri. promincnt, anterior margin stmight, somewhat oblique, angle with
a distinct tubercle from which extends posteriorly a polished carina, first extending
briefly at less than right angle with the anterior margin, then turning apically
parallel to side, evanescent at basal fourth; sides irregularly and coarsely punctate
to beyond middle. Prosternum unarmed, slightly dilated each side at middle.
Procoxae strongly tumid posteriorly, anteriorly vcry indistinctly tuberculate;
femorn clavate, profcmora not at all rugose; mcto.tibiae unmodified. Fifth strcnite
half again as long as fourth; medially with a linear impression; apex retuse.
Antennae about as long as body, finely and sparsely fimbriate beneath for entire
length; scapc short, strongly capitate on apical two-fifths, not rugose; third !