MESOCYPHONA. STYRIXGOMYIA. 459 



extending a little on to the shoulders. Scutelluua more or less 

 yellowish; inetauotum black. Sides of thorax almost wholly black. 

 Abdomen blackish, roughened, with very sparse short pale hairs ; 

 belly black. Genitalia very small, black, consisting, so far as can be 

 seen, of an upper and a lower pair of fleshy subcylindrical one- 

 jointed claspers, no terminal hooks being evident ; moderately 

 pubescent. Legs black, shortly pubescent. Wings pale grey, veins 

 black, pubescence on the veins distinct but not conspicuous. The 

 auxiliary vein ending much beyond the base of the 2nd longi- 

 tudinal vein, nearly opposite the base of the 3rd vein ; the 2nd 

 vein beginning before the middle of the wing, forking beyond 

 half its length, the lower branch nearly twice as long as the 

 upper one ; the 1st longitudinal vein ending beyond the fork of 

 the 2nd vein ; the 3rd vein beginning at two-thirds of the length 

 of the praefurca, its basal section being half as long as the 

 anterior cross-vein, running to the tip of the wing ; the 4th vein 

 has its anterior branch forked at one-third of its length, the 

 branches nearly parallel, so that the 1st posterior cell has its sides 

 also approximately parallel ; the 3rd posterior cell with a distinct 

 basal side, the posterior cross-vein in a line with it ; the nth and 

 6th veins nearly straight ; the 7th not approximated to the 6th 

 at any portion of its length, and gently arcuate. Halteres dirty 

 yellowish white. 



Length 4| millim. 



Described from two males from Kurseong, 7-9. ix. 09 (Annan- 

 dale}, and G-hoom, 7500 ft., 19. ix. 08. 



Type and other specimens in the Indian Museum. 



Genus STYRINGOMYIA, Lw. 



Styringomyia, Loew, Dipt. Beitr. I, in " Zu. der offentlichen Prufung 

 der Schuler d. Konigl. Fried. Wilh. Gymn. zu Posen," p. 6 

 (1845). 



GENOTYPE, S. venusta, Lw. ; by original designation. Though 

 this is a fossil species, it is actually the original type o the genus. 

 Further extinct species in amber, from Caffraria, were described 

 by Osten Sacken but not named. 



Head: eyes separated above by a broad frons, nearly contiguous 

 below. Proboscis short ; palpi four-jointed, the joints more or 

 less of equal length, generally the 1st joint the shortest and the 

 last the longest. Antennae rather long, 16-jointed ; scape with 

 1st joint elongate, cylindrical, the 2nd broader and much shorter; 

 the flagellum of fourteen oval joints, gradually diminishing in size 

 to the tip. Thorax oval, moderately arched ; prothorax conically 

 produced into a normal short neck. Abdomen long (sometimes 

 three times the length of the thorax), linear, composed of only 

 seven segments, a short basal one and six others about equal in 



