GERAIS'OMYIA. 389 



is a rather small, bifid, interior appendage. The whole organ 

 lightly hairy, except the 2nd joint of the claspers, which is 

 practically bare. In the female the ovipositor is normal, blackish, 

 the terminal blades reddish yellow. Legs mainly brown ; coxae, 

 base of femora and basal half of tarsi yellowish. Wings pale 

 yellowish grey, conspicuously iridescent ; stigma oval, moderate- 

 sized, brown, placed over marginal cross-vein. Auxiliary vein 

 ending nearly half-way betA\een the origin of the 2nd longitudinal 

 vein and the marginal cross-vein ; the 2nd vein ox'iginating at the 

 middle of the wing, the prsefurca two-thirds as long as the 

 remainder; base of 3rd vein three or four times as long as 

 anterior cross-vein ; submarginal cell considerably longer than 

 1st posterior cell ; discal cell twice as long as broad, barely 

 shorter than 2nd and 3rd posterior cells ; posterior cross-vein 

 immediately after base of discal cell. Halteres blackish brown. 



Length 5 millim. 



Described from two males (including type) from Tenmalai, 

 Western Ghats (western side), Travancore, 21. xi. 08 (Annandale) ; 

 nine males (Pusa coll.) from Nongpoh, Assam, ix. 06 ; a type 

 female and three other females from the latter locality taken 

 during September also. 



Tyjic (S in the Indian Museum ; $ in the Pusa collection. 



The conspicuous shining black spot on the light grey thorax, 

 and the unusually constructed male genitalia will render this 

 species easily distinguishable. 



279. Geranomyia flavicosta, sp. nov. (PI. VIII, fig. 2 : PI. XI, 

 fig. 6.) 



2 . Head missing, except a very small portion of the neck, and 

 the whole proboscis, which is yellow, with a black ring at the tip. 

 Thorax bright brownish yellow ; two less distinct brown spots in 

 front of the shoulders, and, situated on the dorsum, are five very 

 large and distinct dark brown, approximately oval spots, placed 

 thus : — one behind each shoulder, one in the centre of the dorsum, 

 and one on each side behind the suture. Sides, scutellum, and 

 metanotnm yellow. Abdomen missing, but writing from memory, 

 it \\ as wholly yellowish, concolorous with most of the rest of the 

 body. Lega pale yellow ; extreme tips of femora, tibiae and tarsi 

 black. Wings nearly clear ; costal cell bright yellow, the colour 

 extending to the tip of the wing on the costal vein itself ; five 

 black spots (the first three elongated) along the costa, the fourth 

 situated at the tip of the 1st vein, and the fifth at the tip of the 

 2nd vein. The prsefurca narrowly suffused with dark brown, the 

 colour continuing along all the veins to the tip of the 5th vein, 

 which latter vein is itself narrowly suffused along its entire 

 length ; tips of 6th and 7th veins narrowly suffused ; a pale brown 

 streak of moderate width from the 1st posterior cell along the 

 outer side of the discal cell, to the hind margin of wing. 

 Length (from memory) about 5 millim. 



2c2 



