124 Memoirs of the Indian Museum. [Voi.. Ill, 



Antennae yellow, the third joint grey pollinose ; arista black, long, shortly pilose ; 

 proboscis and palpi dark yellow. 



Thorax shining black, with very short pale pubescence and dark grey pollinose ; 

 on the back are to be seen three less distinct narrow longitudinal grey stripes ; the 

 humeri are yellowish ; the bristles are black ; there is a single mpl. Pleura shining 

 black, without pollen, narrowly reddish along the sutures ; sternopleura below with 

 short white pubescence. Metanotum shining black, unspotted. Scutellum of smaller 

 size, triangular, reddish-yellow, with a broad basal black spot and greyish pollen ; the 

 four bristles are strong and long, the median pair crossed at the apex. Haltères and 

 squamulae pale yellow. 



Abdomen narrow and elongated, shining black, with a broad longitudinal middle 

 yellow stripe, which is quite distinct on the two first segments, and after them becomes 

 greyish and less distinct, being also interrupted at the base of the segments. The 

 bristles are black ; venter dark yellow. Ovipositor flattened, densely but very shortly 

 pilose, as long as the three last segments, narrow and truncate at the end and shining 

 black. Legs black, with grey pollen ; coxae and trocanters yellow and also the knees 

 narrowly ; tibiae at the end and the first tarsal joint dark yellow, chiefly those of the 

 front legs. 



Wings without costal bristle ; veins black, only the costa at base and the sub- 

 costa yellow ; stigma black, narrowly yellow at the base. The pattern consists of 

 four blackish bands. The first is near the base, short and narrow, extending from, 

 the bifurcation of the second vein to the apex of the anal cell. The second band 

 reaches from the stigma over the small cross- vein to the hind margin, where it 

 terminates in the middle of the third posterior cell ; it is broadly interrupted at the 

 third vein, the first portion forming an isolated streak after the stigma, the second being 

 much broader. The third band begins beyond the stigma, and passing over the hind 

 cross- vein, reaches the hind margin at the apex of the fifth vein ; it is also interrupted 

 at the third vein, the second portion being much broader than the first. The fourth 

 band is much broader than the others, filling out all the apex ; it contains two hyaline 

 spots, one at the distal corner of the marginal cell, the other semilunar just at the 

 tip, between the ends of the third and fourth veins. 



A single specimen from Kurseong, 5000 ft., E. Himalayas, ix-09. - 



13 Callistomyia, n. gen. 



Easily distinguished from any other genus by the presence of a small but distinct 

 pp., and by the four posterior femora being serrulate beneath, and also by the peculiar 

 pattern of the wings. 



Head as broad as high, the frons and the face much narrower than in all the pre- 

 ceding genera ; eyes round, with the anterior facets enlarged ; occiput not swollen ; 

 cheeks very narrow ; face concave, the epistome a little prominent ; antennae inserted 

 at the middle of the eyes, not reaching the epistome ; third joint 2^ times the length 

 of the second, rounded at the tip ; arista shortly plumose ; palpi not bristly ; no oc. ; 

 or, 2. 3, the superior weaker than the lower; pvt. very small; vt. 2., the outer 



