BY ARTHUR M. LEA. 233 



One specimen has much less black about 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 onl}^ 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. 



$. Oblong, shining, subdepressed. Black; pro thorax, mandi- 

 bles, ti]3 of femora, basal fourth of posterior, basal two-fifths of 

 intermediate, and almost the entire anterior tibi£e testaceous; 

 antennae 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). Head 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; antennae inserted equi- 

 distant from each other and from the middle of the eyes, reaching 

 posterior coxae, 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, 10 th 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 



