I9I3-] E. Brunetti : Diptera. 159 



side and tip of 3rd joint blackish. Posterior border of eyes with 

 white hair on the lower half. 



Thorax. — Aenous, with a very slight bronze green tint viewed 

 in certain directions, with short black and yellow hairs. Scutellum 

 concolorous; black hairs on dorsum, with which some yellow ones 

 are intermixed, 3^ellow hair only on underside, softer and closer 

 and there are at least six long black bristles on the hind border 

 A few inconspicuous black bristles behind the wings ; pleurae 

 with light yellowish hair. 



Abdomen with ist segment brownish, the remainder dull 

 black, with yellowish hairs, which are thicker towards the base 

 at the sides. Belly similar, nearly bare. 



Legs — Cox2ie black, a little reddish brown about the trochan- 

 ters ; femora black except narrowly yellowish at tips ; tibiae orange, 

 with a rather narrow median band which is narrower and in- 

 complete on the anterior legs, and broader and complete on the 

 hind legs. Tarsi orange, tips brown; hind tarsi with all the upper 

 side dark. 



Wings. — Nearly clear ; stigma brownish yellow, extending to 

 the end of the cell ; a blackish inf uscation over the apical third 

 of the wing, extending from the stigma posteriorly to about the 

 hinder limits of the ist posterior cell. Halteres dirty yellow. 



Described from one 9 from Rotung (1400 ft.), 4 — i3-iii-i2. 



Syrphus balteatus, Degeer. 



Seven specimens ( cf 9 ) of this widely distributed Palaearctic, 

 North American and Himalayan species; from Sadiya (23-xi-ii), 

 Rotung (26-xi-ii; and Dibrug rh, 17 — iQ-xi-ii. 



Syrphus aeneitrons, mihi, sp. nov. 



cf N.E. Frontier of India. Long. 10 mm. 



Head. — Eyes with dense dark brown pubescence; touching 

 for more than half the distance from the upper corner of the frons 

 to the elongate vertical triangle. This latter is black, with a few 

 stiff black hairs curved forwards. Frons aenous bronze, antennal 

 tubercle black, both with long black hairs. Face orange yellow, 

 barely produced in the middle, just above the mouth, where in is 

 blackish. Mouth border and lower edge of face black, with a few 

 black hairs. Proboscis brownish. Antennae wholly black, 2nd 

 joint emarginate. with black bristles at tip; 3rd joint elongo- 

 conical, arista black. Posterior orbit of eyes with a fringe of 

 bright orange scale-like thick hairs; occiput grey. 



Thorax.— Shimng black, wdth brownish yellow hairs. Sides 

 dark grey ; pleurae with grey or yellownsh grey hairs ; scutellum 

 yellowish with dark brown hairs. 



Abdomen. — Ovaie, black, moderately shining; 2nd segment 

 with a pair of elongo triangular yellowish spots; their bases placed 

 near the lateral margms, their apices nearly reaching the centre of 



