IgI5.] HE. BRUNETTI: Notes on Oriental Syrphidae. 249 
and scutellum covered with yellow hair. Sides of thorax blackish, 
apparently a yellowish spot on the mesopleurae. The stigmatic 
spots yellow. 
Abdomen.—Black, shining, Ist segment wholly black; 2nd 
with a yellow transverse sublunate spot on each side near the 
base, and contiguous to the side margin; the two spots fairly 
widely separated from one another. On the 3rd segment a nearly 
similar pair of yellow spots which are more elongo-conical in 
shape and are similarly situated; on the 4th segment a pair of 
yellow nearly triangular spots similarly situated ; all the six spots 
of about the same size and of the same colour. Abdomen with 
close black pubescence, except that over the spots, which is 
yellow. Belly black, yellowish at base of 2nd, 3rd and 4th seg- 
ments, the colour forming two spots on the 2nd segment. 
Legs.—Bright brownish yellow ; anterior femora with a black 
streak above and below on basal half; hind femora considerably 
enlarged, with a conspicuous reddish tooth-like prolongation on 
underside towards the tip; black, except at tips, the reddish 
brown colour more extensive on underside. 
All the legs with short yellow pubescence, but the hinder 
side of the middle and hind tibiae with a very thick long fringe 
of bright yellow hair; (hind tarsi missing). 
Wings.—Yellowish grey, subcostal cell brownish yellow. 
Halteres very small, yellow. 
Described from a single @ from Trivandrum, Travancore 
State: in the Indian Museum received from the Trivandrum 
Museum, 
Subfamily CHRYSOTOXINAE. 
Chrysotoxum convexum, mihi, sp. nov. 
(Plate xiii, fig. 19). 
@ Western Himalayas. Long. 14 mm. 
Head.—Frons with yellowish grey dust ; antennal prominence 
shining black, with black hairs, a few of which extend to the 
adjacent parts of the frons; antennae all black, arista reddish brown 
on basal portion. Face bright yellow with a broad median black 
stripe; a black band from the 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 of eye. 
Thorax moderately shining black with short sparse black 
pubescence, a few rather bright brown hairs in the middle of the 
disc. A pair of moderately narrow vellowish grey median stripes 
on anterior border, extending only for a short distance. Humeri, 
and posterior calli with a short lateral contiguous narrow stripe, 
bright yellow; a short stripe on the pleura just below but not 
touching the humeri, the base of the wings, a duller yellow. 
Scutellum bright yellowish orange on anterior margin, orange 
