384 Records of the Indian Museum. [Vol. IV, 



irregular, produced towards the base of fork of third longitudinal 

 vein and again at the fourth posterior cell ; the apical spot is 

 narrow, the same width throughout, reaching exactly to the centre 

 of apex of wing. 



& . Smaller than the female, measuring 8 mm. 



Palpi blackish. First joint of antennae nearly the same 

 length as the second, both darker in colour. Eyes join between 

 the frontal triangle and the ocelligerous tubercle. Thorax with a 

 wide median black stripe bordered by a yellow stripe, black 

 beyond: sides yellow with a black stripe, pubescence yellow, 

 golden 3^ellow on the sides. Scutelhtm black. Abdomen similar 

 to that of female with the exception of the first segment which is 

 wholly black, only pale yellow on the sides, the black spots on 

 second segment are larger and leave only a small yellow dot in 

 their centre, the middle yellow spot on the two following segments 

 is smaller ; under side yellow, black at apex. Legs black, only the 

 middle femora and first joint of middle and posterior tarsi pale 

 yellow. 



Chrysops rufitarsis, a- , Macquart. 



Dipt, exot vSuppl. iii, p. 174 (1847); Ricardo, Ann. Mag. Nat, 

 Hist. (7), ix, p. 373 (1902). 



Thorax black. Abdomen white, at the base and apex black. 

 Wings at the base, costal border and band brown. lycngth 4 lines, & . 



Palpi brown. Face yellowish white with two shining black 

 callosities. Forehead black. x'\ntennae slender; first joint hairy, 

 dark testaceous; the two others black. Thorax with blue reflec- 

 tions, a spot of yellowish white hairs in front of the wings ; scutel- 

 lum black. Abdomen : first segment black, yellowish white on its 

 posterior border, second and third the same white colour ; the 

 second with a small triangular spot resting on the anterior border ; 

 the fourth on the anterior part white, sinuous, and posteriorly 

 black, the fifth, sixth and seventh black ; under side as the dorsum. 

 Legs black ; tibiae dilated, a little rounded on the outside, the 

 posterior ones lightly ciliated; tarsi fawn coloured, the anterior 

 ones black ; the two last joints of the intermediate and posterior 

 pair black. Wings hyaline ; the cross-band hollowed out on its in- 

 terior border ; veins pale, normal. From Java. Monsieur Payen's 

 collection, Macquart, Dipt. exot. Suppl. iii, p. 174. 



This type is unknown to me, but there is a male from Burma 

 in the Brit. Mus. coll. which may perhaps belong to this species 

 though there is no sign of a black spot on the second segment, the 

 abdomen being almost silvery white or very pale yellow, black at 

 base and apex. The colouring of the large facial tubercles is red- 

 dish brown, of the antennae chiefly reddish yellow, of the legs 

 more reddish brown than black ; the tibiae are all incrassate. Wings 

 with a faint large hyaline sinus on posterior border, apical spot 

 reaching apex uniform in width, apical border of band slightly 

 concave. 



