400 T1PULID.E. 



6. Wing with stigma blackish 7. 



Wing wholly clear ; posterior cross- 

 vein situated at middle of discal cell . centralis, sp. n., p. 403. 



7. Tarsi, except metatarsi, snow-white . . niveipes, sp. n., p. 404. 

 Tarsi never snow-white 8. 



8. Discal cell nearly as long as the 2nd or 



3rd posterior cell , 9. 



Discal cell only half as long as the 2nd 

 or 3rd posterior cell niyra, sp. n., p. 404. 



9. The 3rd posterior cell approximately 



oblong ; wing more or less vitreous ; 

 sides of abdomen with a row of whitish 



spots vitripennis , sp. n., p. 405. 



The 3rd posterior cell triangular ; wing 

 clear ; sides of abdomen without white 

 spots triangular is, sp. n., p. 406. 



287. Limnobia festiva, sp. nov. (PI. VII, fig. 13.) 



<S . Head mainly dark grey, lighter on frons ; eyes nearly con- 

 tiguous for a short space only ; proboscis and palpi blackish ; 

 anteunal scape black, flagellum blackish ; neck rather robust, 

 yellow, dorsuin and sides black. Thorax mainly bright chrome- 

 yellow, lighter yellow on sides ; a dark brown median stripe from 

 the neck to the scutellum. where it enlarges somewhat aod fades 

 away ; behind the suture two large, brown, slightly shining spots. 

 Scutellum shining brownish, with grey reflections ; metanotum 

 with a broad concolorous median brown stripe. Abdomen yellowish, 

 a little soft pubescence at the sides ; posterior margins of segments 

 distinctly blackish and the dorsum of each segment is a little 

 blackish here and there. Belly yellowish, blackish towards apical 

 half, margins of segments with well-defined border. G-euitalia 

 brown, with a few black hairs, apparently consisting of a pair of 

 moderate-sized claspers and one or two pairs of smaller organs. 

 Legs dark brown ; femora broadly black at tips, with a moderately 

 wide subapical yellowish ring. Wings yellowish. Auxiliary vein 

 ending opposite the origin of the 2nd longitudinal vein, as in 

 Dicranomyia ; the 2nd longitudinal vein originating distinctly 

 beyond the middle of the wing ; marginal cross-vein distinctly 

 before tip of 1st vein ; praefurca half as long as remainder of 2nd 

 vein ; base of 3rd vein fully twice as long as anterior cross-vein ; 

 discal cell distinctly longer than broad, nearly oblong, slightly 

 wider distally than at base, distinctly shorter than 2nd and 3rd 

 posterior cells ; posterior cross-vein distinctly before base of discal 

 cell. A dark brown spot over the stigma, the praefurca darkened 

 also, the colour of both spots united with one over the fork of the 

 2nd vein. The following lighter brownish grey suffusions : a 

 square spot in the middle of the very broad anterior basal cell, 

 which is more faintly duplicated in the posterior basal cell ; the 

 tip of the wing from the tip of the 2nd vein to the 3rd posterior 

 cell, inclusive. Wings highly glassy and iridescent. Halteres 

 blackish. 



