LIST OF DIPTERA. 79 



Pterocosmus velutinus, n. s., mas et fem. Nigra, abdomine fasciis 

 nonnullis cinereis, fem. apice fulvo, alis nigro-fuscis basi jlavis, 

 fusco unimaculatis. 



Body black, pubescent, velvet-like : feelers setaceous, pubescent ; 

 joints long, filiform : abdomen with three or four gray bands, most 

 distinct in the male, whose abdomen is much longer than that of 

 the female ; the tip of the latter is tawny : legs black, pubescent, 

 rather slender : wings dark brown, yellow at the base, and having a 

 large brown spot across the disk. Length of the body 8 — 10 lines ; 

 of the wings 14 — 16 lines. 



a. Nepaul. From the Hardwicke bequest. 



Pterocosmus Hilpa, n. s., fem. Nigro-fusca, abdomine nigro apice 

 fulvo, alis fuscis albo fasciatis. 



Much resembling P. velutina. Body deep brown : eyes, feelers 

 and mouth black : abdomen deep velvet-like black ; fore borders of 

 the segments piceous, with a slight silvery lustre ; tip bright tawny : 

 legs deep brown, pubescent : wings brown, with a broad white band 

 across each, not yellow at the base as in the preceding species ; veins 

 and poisers black. Length of the body 6 lines ; of the wings 12 

 lines. 



a. Hong-Kong, China. Presented by J. C. Bowring, Esq. 



Ptychoptera, Fabricius. 



Ptychoptera contaminata, Fabr. Syst. Anil. 20, 1. Meig. Dipt. 



i. 205, 1, vi. 290. Macq. Hist. Nat. Dipt. i. 76, 1. Zett. Ins. 



Lapp. 849, 1. Gim. Bull. Soc. Imp. Nat. Mosc. 1846, xix. 2, 



48, 1. Blanch. Hist. Nat. Ins. iii. 567. Stager, Kroyer, Na~ 



turhist. Tids. iii. 1, 1. Tipula contaminata, Linn. Syst. Nat. ii. 



972, 8. Faun. Suec. 1743. Gmel. Syst. Nat. v. 2814, 8. 



Fabr. Sp. Ins. ii. 402, 11. Mant. Ins. ii. 322, 11. Ent. Syst. 



iv. 236, 12. Latr. Gen. Crust, iv. 257. Cons. Gen. 442. 



Geoff. Ins. ii. 558, 8. Reaum. Ins. v. t. 6, /. 1 — 3. Schceff. 



Icon. t. 196, /. 3, t. 48, /. 7 Schrank. Faun. Boic. iii. 



2298. Ins. Austr. 863. Berk. Syn. Nat. Hist. i. 161. Stew. 



El. Nat. Hist. ii. 251. Turt. iii. 585. Encycl. Meth. pi. 384, 



/. 27, 29. T. fuscipes, Gmel. Syst. Nat. v. 2819, 88. Ty- 



choptera contaminata, Latr. Hist. Nat. Cr. et Ins. xiv. 286, 1. 

 a. England. 



