XVLOTA. 2.'}7 



pair ot spots on the Jh'd segment, but narrower at the sides, the 

 colour not there reacliing the hind margin. Whole surface ot" 

 abdomen covered with short bright yellow hairs ; at sides, the 

 hair more whitish especially tow^irds base, wbere it is also longer. 

 Venter mainly black, except on 2nd and ord segments, which are 

 yellowish. Legs : coxa3 black, with a little pale greyish hair, 

 anterior pair grey-dusted ; remainder of anterior legs wholly 

 bright pale yellow. Hind trochanters without process, hind 

 femora incrassated, reddish-brown ; a few short black spines of 

 unequal length on under side towards tip, the whole limb with 

 short soft yellow hair. Hind tibiaj well curved, yellowish, with a 

 tolerably distinct subapical black band with ill-detined edges, and 

 a trace of a narrower and still less definite sub-basal band ; the 

 wiiole tibia with very short yellowish hair, but on inner side a 

 thick row of very short and stiff black hairs; hind tarsi yellow. 

 Claws, basal half bright yellow, ajjical half black. Wimis pale 

 yellowish-grey, stigma brownish-yellow ; halteres bright yellow. 



Length, 10 mm. 



Described from one <S in the Indian Museum from Bhowali 

 (5700 ft.), Kumaou District, Western Himalayas, June 1909 

 {A. D. Imms). 



This species was described as a Merodon through a lapsus 

 calami, which by a further oversight was not corrected in my 

 second paper on Syrphida^. It is very near X. annulata, but 

 differs in the entirely reddish-brown hind femora, the brownish- 

 yellow hind tibia3 with just a trace of blackish here and there, 

 and the yellowish hind tarsi with the last two joints brown. 

 Only the tgpe specimen is known. 



182. Xylota assamensis, Bnai. 



Xijlota assamensis, Brimetti, Rec. Ind. Mus. ii. p. 71) (1908). 



$ . Frons shining black, narrowing towards vertex, a slight 

 trace of a grey pollinose line across centre ; face below antennae 

 tawny, with minute, not very strongly marked, silvery-white 

 pubescence; proboscis blackish-brown ; antenna; brown ; a fringe 

 of yellowish hair behind eyes at sides. Thorax didl violet-bron/e, 

 nearly bare, sides black, some yellow hairs in front, at base of 

 wing; scutellum unicolorous, yellow hair at sides and on hiiul 

 border. Abdomen shining purple, nearly bare, but with minute 

 yellowish pubescence when seen from in front. Legs bright red- 

 tawny, witli very sparse yellow hair; coxa) black; hind femora 

 with traces of a brown mark in middle of npper side, compressed 

 on outer side at tip. Wings pale yellowish-tawny, stigma tawiiv. 

 Halteres brown, alula3 brown with a fringe of thick yellow liair 

 behind. 



T^e)>glh, I'A mm. 



Described from one 5 in the Indian Museum collection, from 

 Kohima, Assam. 



