476 Mr. F. Bates's descriptions of 



and flattened tuhei'cles, Avith minnte granules scattered between, 

 apex more closely tubercled ; tbe margin closely set witb small- 

 ish, oblique, pointed, setiferous, tubercles ; the carina which 

 traverses the epipleura; tubercled at base and apex, minutely 

 denticulate between: four hind tibise not fringed with long 

 hairs: hind tarsi not compressed, and with a few longish hairs 

 outwardly. Length 7^ lines. 

 Yangi Hissar. 



The following four species of Pterocoma form a distinct group 

 in the genus, distinguished by the third joint of antennse much 

 elongated ; prosternum strongly protuberant in front, its process 

 being enormously produced: the elytra having each three (except 

 semicarinata) costai, besides the marginal ; and the third unites 

 with the marginal just behind the shoulder. 



Pterocoma tibialis, n. sp. 



Black, somewhat nitid, four hind tibia? distinctly rufescent: 

 antenna2 and legs slender: labrum notched iu middle of front 

 margin: head feebly punctured and pilose: prothorax convex, 

 front angles acute and prominent; base strongly sinuate, the 

 angles small and outAvardly directed: sides feebly rounded; finely 

 sj^arsely (especially on disc) tuberculate, the tubercles erect, 

 pointed, setiferous: elytra with a depression behind the scutel- 

 lum; first costa continued along the base to scutellum: intervals 

 minutely remotely granulose, and with a few long decumbent 

 hairs: epipleuras finely rugose granulate, the hairs shorter and 

 denser: marginal costa closely set with long pointed teeth: pro- 

 sternal process coarsely corrugated. Length 4|-G^ hues. 



Neighbourhood of Sanju. 



Pterocoma serrimargo, n. sp. 



Smaller, dull brownish-black: four hind tibia? not distinctly 

 rufescent; labrum entire in front: elytra not depressed behind 

 scutellum, first costa not continued along the base; intervals 

 from near the base clothed with cinereous pubescence; prosterual 

 process sparsely granulose. Length 5j lines. 



Kogyar. 



Pterocoma convexa, n. sj). 



More narrowly ovate and convex; black, a little nitid: thinly 

 clothed with fine cineroiis pubescence, and setose: labrum entire 



