384 The Philippine Journal of Science 1921 
as long, slightly narrower at base than apex; sides arcuate 
from apex to base; lateral margin nearly straight when viewed 
laterally; hind angles rectangular, with a well-defined sinuate 
carina, the carina reaching the lateral margin near the apical 
angles; disk convex, with a feeble, oblique lateral concavity, 
without median depressions; surface rather finely and irregu- 
larly strigose, near sides and posterior angles simply punctate, 
the intervals between the ruge densely and rather coarsely 
punctate, sparsely clothed with short, recumbent white hairs. 
Scutellum wide, strongly, transversely carinate. Elytra scarce- 
ly sinuate behind the humeri, without distinct postmedian 
dilatation, strongly, obliquely narrowed to apices, which are 
separately, rather broadly rounded and strongly serrulate; sides 
of abdomen broadly exposed above, disk feebly flattened, be- 
coming rather deeply concave along suture behind the middle, 
with distinct coste, sutural edge strongly elevated from apical 
third to tips, humeri moderate, not carinate; basal depressions 
moderately deep, surface shining, finely and very densely, imbri- 
eately granulate and rather densely clothed with short, distinct, 
white and yellow, recumbent hairs and ornamented as above. 
Body beneath aéneous, with a cupreous tinge; prosternum 
coarsely and densely scabrous, sparsely pubescent ; prosternal 
lobe broadly rounded in front; intercoxal process rather narrow, 
sides parallel; squarely truncate at apex, with an acute tooth 
at middle; propleura densely, finely punctate and sparsely pu- 
bescent; metasternum at sides densely punctate. Abdomen 
finely, densely punctate-strigose, and moderately clothed with 
very short white pubescence; first ventral segment convex, not 
impressed nor conspicuously pubescent; last segment broadly 
concave and subtruncate at apex; vertical portions of the seg- 
ments sparsely and evenly pubescent; pygidium without pro- 
jecting carina. Hind tarsi one-half as long as tibie, first joint 
about equal in length to- the two following joints united; tibie 
straight; claws divaricate, cleft at middle, forming an acute 
tooth, the lower portion not incurved. 
Length, 6.5 millimeters; width, 2. 
Described from a unique female from Puerto Princesa, Pala- 
wan (Baker). 
This species superficially resembles A. bisignatus, but can be 
distinguished from that species by the following characters : 
Form much shorter, tips of the elytron more rounded, prosternal 
lobe broadly rounded, and by having the intercoxal process 
