426 The Philippine Journal of Science 1921 
the elevated part of disk, sparsely clothed with moderately long, 
whitish and golden yellow, recumbent pubescence; sides fiat- 
tened, becoming more broadly so posteriorly, and extending 
along posterior margin, forming a broadly triangular elevation 
on the anterior median part, and with a small puncture near the 
posterior angles; anterior margin deeply, arcuately emarginate, 
with the angles acute; sides strongly, obliquely arcuate; base 
bisinuate, with a large, round, median lobe, slightly truncate in 
front of the scutellum. Scutellum rather large, broadly trian- 
gular. Elytra as wide as pronotum at base, slightly sinuate 
near posterior coxa, strongly attenuate to the tips, which are 
conjointly, broadly rounded; humeri rather prominent; surface 
with a distinct arcuate carina, reaching from humeral angles 
te apical margin, finely, rather densely punctate and moderately 
rugose, with a deep linear depression along base and a deeply 
concave depression between the lateral carina and _ lateral 
margin, reaching from humeral angle to a little beyond the 
posterior coxe, sparsely clothed on the violaceous parts with 
short, dark, recumbent pubescence, the pubescence more yellow 
on the cupreous part along suture, and becoming much denser 
and more golden yellow on the entire apical third, which is 
margined anteriorly by a transverse zigzag series of white hairs, 
the apical part with a small, inconspicuous, round, median spot 
on each elytron, composed of darker pubescence. Beneath 
rather convex; abdomen densely marked with circles, in the 
middle of which is a small puncture; intervals finely granulose, 
with a few, inconspicuous, white hairs. Prosternum distinctly 
divided into two parts, the anterior portion bent downward, 
with the front margin broadly arcuate and feebly margined; 
intercoxal process transverse, flat, much narrower in front than 
behind, apex truncate, with the angles rounded; mesosternum 
with the anterior margin truncate; tarsi and claws black; tarsal 
lamellz brownish. 
Length, 3 millimeters; width, 1.75. 
Described from two specimens. The type from Davao, Min- 
danao (Baker 8339); paratype from the same locality without 
a number. 
Trachys mindanaoensis sp. nov. 
Elongate, slightly convex, attenuate posteriorly; head and 
pronotum of a dark bronze color; elytra dark violaceous blue, 
becoming slightly bronzy posteriorly, pubescent; beneath black, 
with a metallic reflection. 
