144 KEMESTRINID^E. 



yellowish, hind margins of segments narrowly yellowish ; genitalia 

 yellow, with two rat her exposed terminal lamellae. Legs yellowi.-h ; 

 coxae, femora (except base and tips), tips of hind tibiae brosidly 

 and all tarsi (except base of middle pair) dark brown. Winys 

 grey ; two slightly darker streaks over the " cross-veins " ; stigma 

 larjje, dark brown ; halteivs large, dirty yellow. 



Lenytli, 5 mm. 



Described from a single 2 in the British Museum in fair 

 condition from Naini Tal, 7000 ft., vi. 1900 (Lt.-Col. Giles}. 



A rather thick-set species. 



A $ taken by Mr. T. B. Fletcher may be this or a very closely 

 allied species, differing in possessing distinctly longer, wholly 

 blackish-grey antennae, no signs of yellowish margins to abdominal 

 segments, and being wholly more grey than yellowish ; Ha/ara 

 District, Dungagali, 8000 ft., 21-24. v. 1915. 



111. Chrysopilus alternatus, sp. nov. 



c? . Head with the lower and hinder facets of eyes slightly 

 smaller than front ones, but not sharply demarcated and of the 

 same dark brown colour ; vertical triangle small, blackish, ocelli 

 inconspicuous ; frous and front of head greyish ; antennae bright 

 ye'low, 1st joint greyish, arista hlack ; epistorca blackish ; pro- 

 boscis and palpi bright yellow, with some soft hairs; some pale 

 yellow h:iirs on inner side of head; occiput grey, with short hairs 

 towards margin. Thorax and scutellum yellowish brown, with 

 short, rather coarse, bright yellow pubescence ; pleurae greyish. 

 Abdomen with 1st segment and base of 2nd yellowish; ot the 

 remainder, rather more than basal half of ench blackish brown, 

 the remaining part yellowish ; the whole dorsum with short pale 

 yellow hairs ; venter similar. Legs yellow, tibiae and tarsi very 

 slightly but uniformly duskier. Wings pale yellowish grey ; 

 stigma 1'irge, dark brown, its outline not clearly defined; halteres 

 yellow, knobs brownish. 



Length, 8 mm. 



Described from a single <$ in the Indian Museum from Guindy, 

 Madras; and two subsequent specimens from Coorioor, 5.ix. 1911 

 (Fletcher); and Lebong, 4500 ft., 2-9. vi. 1909 (Uowlett). 



Family NEMESTEINID^.* 



Head transverse, as wide as or a little narrower than thorax, 

 set close upon it ; eyes generally widely separated in both sexes, 

 but in some cases narrowly separated or contiguous lor some dis- 

 tance in d and then only narrow ly separated in $ , generally bare, 

 occasionally with dense or long pubescence; facets gtneially of 

 uniform size ; three ocelli. Proboscis varying from very long 

 (porrect or bent down) to very short and thick ; labella variable 



* This family has occasionally been called the Hirmojicurtdee, but the 

 claims of the title here retained have been fully established. 



