BY ARTHUR M. LEA. 
233 
One specimen has much less black aboufc the abdomen and 
sterna, and there is a small testaceous macula situated near the 
apex of, and common to both elytra. The species comes closest 
to S. variegatus, which Mr. Masters also captured in considerable 
able numbers. 
Heteromastix bicolor, Bohem.; Mast. Cat. Sp. No. 3389. 
Of this species only the male has been described. I have several 
pairs obtained in copula. The female differs in having the antenna? 
less thick, the tenth joint similar in shape to the ninth, and in the 
apical joints being piceous, only the first three or four joints being 
reddish-testaceous. 
Heteromastix gagaticeps, n.sp. 
(J. Oblong, shining, subdepressed. Black; prothorax, mandi- 
bles, tip of femora, basal fourth of posterior, basal two-fifths of 
intermediate, and almost the entire anterior tibiae testaceous; 
antenna? with the three basal joints — and the fourth beneath — 
testaceous, the others black; palpi and tarsi piceous; claws 
reddish; eyes blackish-brown. Head and prothorax sparsely 
clothed with short yellowish pubescence, that on the head very 
short; elytra more densely clothed with short sub-erect pubes- 
cence; on the undersurface it is yellowish-grey and rather dense 
(sparsest on abdominal segments). Plead and prothorax minutely, 
elytra densely, shallowly, and somewhat rugosely punctate, punc- 
tures almost obliterated at base; undersurface and legs densely 
and minutely punctate. 
Head transverse, a shallow transverse impression on each side 
between the eyes; eyes large, prominent; antenna? inserted equi- 
distant from each other and from the middle of the e}^es, reaching 
posterior coxa?, joints rather thick, 1st as long as 3rd-4th com- 
bined, 2nd about half as long as 3rd, 3rd-9th obconic, subequal or 
very gradually diminishing, lOfch stouter, its apex obliquely 
truncate, 11th as long as 9th-10th combined, somewhat dumb- 
bell shaped, apex pointed. Prothorax broadly transverse, slightly 
widest near the apex; apex truncate, base somewhat rounded; all 
