LIST OF DIPTERA. 807 



Zona pictipennis, n. s., fem. Nigra, capite ferrugineo, abdomine 

 cyaneo, palpis fulvis, antennis ferrugineis, pedibus nigris, alis 

 subcinereis ad costam fuscis Jlavoque trimaculatis, disco fasciis 

 duabus fuscis. 



Head bright ferruginous; epistoma slightly prominent; sides of 

 the face without bristles: eyes black ; fore part convex, its facets a 

 little larger than those elsewhere : sucker pitchy, large, tawny at the 

 tip; palpi tawny, beset with a few black bristles: feelers ferru- 

 ginous, much shorter than the face ; third joint tapering from the 

 base to the tip which is conical, about twice the length of the second 

 joint ; bristle downy, twice the length of the third joint : chest 

 black, lengthened in front into a neck which is ferruginous: abdo- 

 men dark blue, but little longer than broad, shorter and much 

 broader than the chest : legs black, rather long, clothed with short 

 black hairs and bristles ; foot-cushions pitchy ; fore thighs armed 

 beneath with five stout spines : wings gray, long and narrow, dark 

 brown and adorned with three yellow spots along the fore border ; 

 two oblique and irregular brown stripes pass from the fore border 

 towards the hind border, where they are widened and joined toge- 

 ther ; wing-ribs and veins pitchy ; third longitudinal vein not ex- 

 tending beyond the slightly obtuse angle which it forms with the 

 tip cross-vein, the latter is much curved inward near the base, but 

 almost straight from thence to the tip, which joins the border at the 

 tip of the wing; little cross- vein very oblique; lower cross -vein 

 straight along half the length from the base, slightly curved outward 

 from thence to the tip ; scales large, white with pale yellow borders ; 

 poisers black. Length of tbe body 7 lines; of the wings 16 lines. 



a. Nepaul. From the Hardwicke bequest. 



b. ? From Mr. Children's collection. 



Tbigonosoma. G.R.Gray. 



Trigonosoma perilampiformis, G. R. Gray, Griffith's Cuv. Anim. 



Kingd. Ins. ii. pL 128,/. 2. 

 a. ? 



Idia Meigen. 



Group I. Idia, Desv. Essai Myod. 419. 



Idia xanthogaster, Wied. Nov. Dipt. Gen. 21. Auss. Zweif. ii. 

 349,2. Desv. Essai Myod. 420, 1. Jenson, Bull. Soc. Imp. 

 Nat. Mosc. iv. 339. iv. 339. 



a. North Bengal. From Miss Campbell's collection. 



b. ? 



