102 MYCETOPHILIDJw 



Ocelli yellowish white. Proboscis comparatively elongate, with 

 very broad and long labella, pale yellow with blackish marks on 

 the upper side ; palpi yellowish white. Antennae black, with 

 microscopic grey reflections. Thorax shining black, rather densely 

 covered with black bristly hairs of different lengths ; whitish grey 

 on the shoulders, the colour extending laterally as far back as the 

 wings. Scutellum, metanotuin and sides of thorax black ; pleurae 

 slightly dusted with grey. Abdomen black, pubescent ; posterior 

 margins of segments yellow on underside, the colour extending 

 narrowly to the upper side of some of the basal ones. Genitalia 

 large, rounded, shining black, pubescent ; an obtusely conical 1st 

 joint and, apparently, some smaller intermediate appendages. Legs 

 pale yellow, posterior coxae black, tarsi pale blackish yellow; 

 posterior tibiae spinose, apparently bearing three rows of rather 

 large setae; fore tibiae with much shorter bristles. Wings very 

 pale grey, blackish on about the apical fourth, the colour extending 

 across the wings, limited proximally, nearly in a straight line, from 

 the middle of the 3rd vein to the tip of the anterior branch of the 

 5th vein ; the 6th vein distinct, straight, ending at about opposite 

 the fork of the 5th vein. Halteres pale yellow, clubs oval. 



Length 85 millim. 



Described from one male taken by me at Darjiling, 25. v. 10. 



Type in the Indian Museum. 



It is questionable whether a new genus might not be established 

 for this species, owing to the lengthened proboscis and highly 

 developed labella. Agreeing, however, as it does with the other 

 generic characters of Leia, and bearing a considerable resemblance 

 to L. nigra, it seems advisable to refer it here for the present. 



Genus RHYMOSIA, Winn. 

 .Z%m0am,Winnertz, Verb, zool.-bot. Ges. Wien, xiii, p. 810 (1863). 



GENOTYPE, R. fasciata, Mg. ; by designation of Johannsen (Gen. 

 Ins., Fasc. 93, p. 102, 1909). 



Head oval, vertex somewhat raised, front broad, narrowed 

 anteriorly ; eyes nearly circular, somewhat bulging ; ocelli three 

 in number, the laterals large, closely contiguous to the eye-margins, 

 the middle one very minute, placed in a groove on the front, 

 sometimes almost concealed. Palpi incurved, four -jointed, 1st 

 joint very small, the 4th longer than the three preceding. 

 Antennas 16-jointed, basal joints differentiated, setose at the apex, 

 the flagellar joints cylindrical, compressed, pubescent. Thorax 

 oval, highly arched ; mesonotum short-haired, usually only the 

 margin with setae ; scutellum large, margin setose ; metanotum 

 high, steep. Abdomen of the male six-segmented, with small 

 terminal segment and rather small forceps, that of the female 

 seven-segmented, slender, constricted at the base, compressed, 

 with short, stout ovipositor and a pair of terminal lamellse. Legs 



