444 The Philippine Journal of Science 1921 
rather large, triangular, black, anterior margin truncate. Ely- 
tra a little wider than pronotum, humeral angles widely rounded ; 
sides slightly sinuate and nearly parallel to just behind the 
middle, then abruptly, obliquely narrowed to the tips, which are 
conjointly, widely rounded and finely dentate; humeri promi- 
nent; surface nearly smooth, shining, with a few, sparsely 
placed, inconspicuous punctures, also with numerous, irregular 
elevations forming depressions as follows: A deep elongate 
depression at the base, another irregular one along the lateral 
margin reaching from the humeri to just behind the middle, 
causing the lateral margin to be distinctly flattened, an irregu- 
larly rounded depression on middle of disk, and a triangular one 
along suture near apex, which is broadly gibbous. Beneath with 
the sides of abdomen marked with irregular lines, becoming less 
distinct and crenulate on the median part; prosternum coarsely 
punctate; posterior coxse with a distinct tooth at the middle of 
the posterior margin. 
Length, 5.25 millimeters; width, 2.75. 
One specimen from Davao, Mindanao (Baker). 
This species is allied to Endelus difformis Deyr., but differs 
from that species in the coloration. | 
Endelus palawanensis sp. nov. 
Elongate, attenuate posteriorly, subconvex, uniformly black, 
with a violaceous reflection, shining; beneath black. 
Head large, distinctly wider anteriorly, slightly narrower 
than the prothorax, widely and deeply excavated between the 
eyes, a distinct median groove reaching from clypea! suture to 
occiput and dividing the head into two lobes; eyes prominent, 
strongly angulate, with the inner side slightly margined, and 
placed at the extreme lateral part of the projecting part; surface 
very finely granulate, with a few larger punctures intermixed ; 
median line with a deep puncture at the middle and a similar 
one in front of epistoma, which is strongly elevated and 
narrowly constricted between the antenne. Pronotum broadly 
cordate, twice as wide as long, widest at anterior fourth; sides 
finely crenulate, arcuately rounded anteriorly to near the middle, 
then strongly, obliquely narrowed to the posterior angles, which 
are obtuse; anterior margin slightly lobed at middle, the angles 
rather acute and protruding; base bisinuate, with a large median 
lobe truncate in front of scutellum; disk rather convex, with the 
sides somewhat flattened, the convexity: formed by a transverse 
elevation joined on the median line to a common anterior eleva- 
