298 



SYKPHID^. 



Chaka, Bijnor District, United Provinces, 23-31. xi. 1907 (type of 

 sexfasciatum) ; North Bengal (type of haphyrus) ; Gudahir, 

 Mlgiris, S. India, 6000 ft!, 19. ix. 1917 (Nagnath) ; Yercaud, 

 Salem, Madras Presideiic\% 27-29. x. 1913 ; between Rotiing and 

 Jvalek, Abor Country, 2000-3500 ft., 14-15. iii. 1912 (Kemp); 

 Kandy, Ceylon, xii. 1907 {E. E. Green, type of citronellum) ; 

 Pnndaluoya, Ceylon, iv and ix. 1893 (E. E. Green) ; Lower Ranges, 

 Khasi tliils, Assam, 1878 (Chennetl). Type of haphyrus, a c? , in 

 the British Museum ; of sexfasciafum, a $ , in the Indian Museum ; 

 of citronellum, a cT , in my collection. 



226. Chrysotoxum convexum, Bmn. 



Chrysoto.nivi convexum, Brunetti, llec. Ind. Mas. xi, p. 249, pl.xiii, 

 tig. 19, abdomen (1915). 



S . Head : frons with yellowish-grey dust ; antenual promi- 

 nence shining black, with black hairs, a few of which extend to 

 the adjacent parts of the frons ; antennae black, arista reddish- 

 brown on basal portion. Face bright yellow with a broad median 

 black stripe ; a black band from tlie corner of the eye to the 

 mouth-border, which latter is reddish and shining. Under side of 

 head yellowish-orange ; proboscis dark brown with short yellowish 

 hairs. Black hairs on vertex, and a fringe of yellow hairs along 

 posterior orbit oi! eye. Tliorax moderately shining black with 



Fig. 64. — Chrysotoxum conve.vuin, Brun., abdomen. 



short sparse black pubescence, a few rather bright brown hairs in 

 the middle of the disc. A pair of moderately narrow yellowish- 

 grey median stripes on anterior border, extending only for a short 

 distance. Humeri and posterior calli, together with a short 

 lateral contiguous narrow stripe, bi'ight yellow; a short stripe on 

 the pleura just below but not touching the humerus, and the bases 

 of the wings, a duller yelloAV. Scutellum bright yellowish-orange 

 on anterior margin, orange-yellow on hind margin, the remainder, 

 forming the bulk of the disc, moderalely shining black. Abdomen 



