50 [March, 



10. — Dianous cameroni, n. sp. 



Brassy-black, the femora and under surface more or leas Bufifused with 

 cyaneous, the antennae and palpi black; shining, sparsely, finely pubescent 

 (the prothorax excepted). Head broad, densely punctate, the intra-ocular 

 grooves deep ; eyes large ; antennae very long. Prothorax narrow, a little 

 longer than broad, constricted before the base ; densely, rather coarsely, 

 irregularly punctate, the punctures here and there obliquely confluent; sulcate 

 for a short distance at the middle of the disc, and with an angular or oblique 

 excavation on each side of this, and also obliquely sulcate laterally before the 

 base. Elytra, wider than the head, slightly longer than broad, rounded at 

 the sides posteriorly ; depressed along the suture anteriorly, within the humeri, 

 and behind the middle ; closely, coarsely punctate, the punctures on the apical 

 half separated by sinuous or oblique, and those adjacent to the basal half 

 of the suture by transverse, rugae. Abdomen closely, minutely punctate ; 

 ventral segments without definite impunctate median area ; anal brushes 

 slender, moderately long, consisting of very few hairs. Legs slender; tarsi 

 elongate, narrow, the fourth joint bilobed, the lobes short and Tery narrow. 



Length 6|-7 mm. (d"$.) 



Hah. India, W. Almora {H. O. C. : iii. and vi.l918), Lebong in 

 Sikkim {in colls. Andreioes and Cameron). 



Six specimens seen (one now wanting tlie abdomen), including two 

 referred by Cameron to D. andrewesi. The narrowly bilobed fourth 

 tarsal joint, the sparser and coarser puncturing of the prothorax and 

 elyti-a, the more coarsely punctate head, with sharply cut, deeper frontal 

 sulci, and the less metallic, darker upper surface, distinguish D. cameroni 

 from D. andrewesi, the latter being an extremely abundant insect in 

 Almora. 



11. — Dia?ious andrewesi. 



Dianous andrewesi Cameron, Trans. Ent. Soc. Lond. 1913, p. 534 

 (part.). 



cJ . Sixth ventral segment deeply, triangidarly emarginate,* seventh trun- 

 cate at apex. Genital armature (fig. 6, dorsal aspect) : lateral lobes long and 

 slender to near the tip, and then curved and abruptly widened, the apical 

 portion set with several long stiff hairs within; median lobe broadly rounded 

 at the apex. 



Hab. India, W. Almora (H. G. C. : vi.l918), Lebong in Sikkim 

 {colls. Cameron and Andrewes) . 



Found in profusion in Almora. Upwards of 200 examples are 

 before me, showing scarcely any variation. D. andrewesi is dis- 

 tinguishable amongst the allied forms by its brassy, brassy-green, or 



* Not visible in the Sikkim type, the penultimate of Cameron's description being the fifth 

 visible segment. 



