1074 LIST OF DIPTERA. 



much more than twice the length of the second; bristle black, bare, 

 very slender, tawny at the base, a little more than twice the length 

 of the third joint ; chest and breast slightly covered with whitish 

 bloom, which on the former is interrupted by three stripes: chest 

 adorned with a yellow spot on each shoulder and with a yellow 

 stripe on each side ; breast with two yellow spots on each side ; 

 scutcheon yellow, armed on the hind border with two bristles: ab- 

 domen elliptical, slightly petiolated, a little broader but hardly 

 longer than the chest, adorned with a yellow band on the hind bor- 

 der of the second segment, with a pitchy band on the fore border of 

 the third segment, and with a pitchy stripe towards the tip : oviduct 

 forming a flat tapering tube, which is less than half the length of 

 the preceding part : legs clothed with very short pale hairs ; hips 

 and hind shanks ferruginous ; four hinder thighs pale tawny, with 

 ferruginous tips : middle shanks tawny ; feet ferruginous, tawny at 

 the base ; claws black ; fore legs tawny, their shanks and feet fer- 

 ruginous, the latter tawny towards the base : wings colourless, brown 

 a little below the fore border for near one-third of the length from 

 the base, and along the fore border from thence to the tip, where the 

 brown hue widens into a darker spot ; a brown stripe from the base 

 of the wing accompanies the sixth longitudinal vein to the hind bor- 

 der ; lower cross-vein clouded with brown ; wing-ribs tawny ; veins 

 pitchy, tawny towards the base; longitudinal veins slightly waving ; 

 lowest basal cross-vein forming an angle on approaching the sixth 

 longitudinal vein, and accompanying it along half its course from 

 thence to the tip before they are united ; middle cross-vein oblique, 

 very slightly curved inward ; lower cross-vein nearly upright, with 

 two very indistinct curves, the lower inward, the upper outward, 

 parted by full its length from the middle cross-vein, by more than its 

 length from the tip of the wing, and by less than one-fourth of its 

 length from the hind border; poisers yellow. Length of the body 

 4 lines ; of the wings 7 lines. 



Var. /3. Abdomen with no yellow band, pitchy at the base, and 

 having a pitchy band on each segment from the second to the 

 fourth. 



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



b. ? 



Dasyneura Tau, n. s., mas. Fulva, Jlavo nigroque varia, palpis 

 an tennis pedibusque fulvis, tarsis poster ioribus femoribusque Jia- 

 vis, alis fusco bivittatis. 



Body and legs clothed with short pale hairs : head and chest 

 beset with a few black bristles : head yellow, adorned with a pitchy 



