62 MYCETOPHILIDJE. 



12. Platyura affinis, sp. nov. 



$ . Very near apicipennis, but the thorax has three distinct 

 black stripes of the usual pattern; sternopleurse dusted with blue- 

 grey. The terminal lamellae of the ovipostor can be seen, being 

 small, slightly conical, yellowish. The extreme tip of wing, though 

 lighter than the apical dark suffusion, is still much darker than the 

 corresponding part in apicipennis. 



Length 5 milliru. 



The single specimen is from Darjiling, 25. v. 1 0, taken by me. 



Type in the Indian Museum. 



13. Platyura marginata, sp. nov. (PI. Ill, fig. 3.) 



c? $ . Head brownish yellow, vertex and back of head brown, 

 palpi yellow. Antennal scape yellow, flagellum blackish, the 

 joints with a greyish tinge on basal half. Thorax brownish, 

 three darker dorsal stripes are visible, seen from behind ; a con- 

 siderable amount of rather stiff black pubescence over the dorsal 

 surface, becoming bristly at the sides above the wings ; sides 

 yellow, pleura rather dark brown. Scutellum and metanotum 

 brown, former yellowish below posterior margin. Abdomen 

 blackish ; segments with moderately wide, yellow posterior 

 margins, broadest on 2nd to 5th segments ; abdomen minutely 

 pubescent. Grenitalia large and conspicuous ; a large thick upper 

 plate, somewhat narrowed on the apical half, below which is a pair 

 of large, very conical, two-jointed claspers with strong black claws 

 at their tips ; a small ventral plate with a row of spines on 

 posterior margin; the whole organ blackish brown, except the 

 apical part of the claspers and the ventral plate, which are yellow. 

 Legs pale yellowish, tarsi black. Wings pale yellowish grey, con- 

 siderably iridescent, tip slightly suffused, the darkening extending 

 nearly to the upper branch of the 3rd vein. Halteres yellowish. 



Length 4^-5 millim. 



Described from two males from Naini Tal, 6000 feet, 

 3 and 10. vi. 09. 



Type in the Indian Museum. 



A specimen in the same collection, also from Naini Tal, I0.vi.09, 

 is evidently the female of this species. It agrees in all particulars, 

 except that the pleurae are not darker than the rest of the sides of 

 the thorax, and that the abdomen is broader, the yellow bands 

 narrower, and the infuscation of the wing-tip less distinct. 



14. Platyura flaviventris, sp. nov. 



$ . Head brownish yellow, vertex black ; antennas black, scape 

 a little yellowish. Thorax (slightly damaged) blackish, anterior 

 and lateral margins of dorsum yellowish, and apparently with a 

 narrow yellow median stripe. Metapleura with a little grey 



