78 Records of the Indian Museum. [Vol. XIII, 



The present species conforming to all the generic characters, 

 except the presence of the 2nd vein, may be regarded, at least 

 temporarily, as a true Empidideicus . Becker says, " 2nd and 

 3rd veins anastomosed." In his species also, the basal cells are 

 equal in length, and he does not mention the auxiliary vein, which, 

 however, is easily overlooked in indicus. 



Family NEMESTRINIDAE. 

 Hirmoneura annandaici, Licht. 



Rec. hid. Mas. IX, p. 333. 



Simla, 9-V-10; Kufri, 1 1-5-59 ; Kufri to Phagu, 21-V-16. 

 Hirmoneura opaca, Licht. 



Rec. Ind. Mits. IX, p. 334. 



Simla. 



Hirmoneura cingulata, Licht. 



Rec. Ind. Mus. IX, p. 333. 



Simla Hills, 9,000 ft., 12-V-09, 



Family THEREVIDAE. 

 Thereva bilineata, sp. nov. 



9 . Simla District. Long ii|- mm. 



Head. Frons at vertex distinctly more than ^ of the 

 head, at level of antennae, over half the head; its upper two- 

 thirds yellowish brown, the rest, with the face, ash grey ; whole 

 frons with scattered black hairs of moderate length ; face wholly 

 covered with long pendant whitish grey hair, extending over 

 cheeks and lower part of occiput ; some black hairs below or 

 around the mouth; proboscis reddish brown. Antennae black, 

 first two joints with strong black bristles, 3rd as long as ist. 

 Vertical triangle barely raised ; a row of rather strong bristles 

 along upper occipital margin, a second row a short distance 

 behind the first. 



Thorax dark brown, nearly black, with two distinct yellowish 

 white well- separated dorsal stripes from anterior to hind margin, 

 and minute yellowish sparse pubescence. A row of five powerful 

 spines behind the humerus, extending towards wing base ; two 

 supra-alar (post-sutural), one post-alar ; a large and lesser one on 

 each side margin of scutellum and a pair of apical scutellar decus- 

 sate nearly perpendicular ones. Pleurae ash grey with long whitish 

 grey pubescence. Scutellum ash grey with a large brown spot 

 at base, hind margin with soft j'-ellow hairs as well as the bristles. 



Abdomen black ; ist segment grey, with yellow pubescence 

 on hind margin and whitish hairs at sides ; rest of segments with 



