LIST OF DIPTERA. 759 



stripe on the back, and with a vow of black spots on each side: legs 

 tawny, clothed with black hairs and bristles ; feet towards the tips 

 and "thighs black; foot-cushions tawny: wings with a slight tawny 

 tinge, which disappears on the hind border ; wing-ribs and veins 

 tawny; veins pitchy towards the tips ; tip cross-vein forming a very 

 obtuse angle with the fourth longitudinal vein, which sends forth a 

 stump beyond it, nearly straight, joining the border a little above 

 the tip of the wing; lower cross- vein with two curves, the lower 

 slight and inward, the upper larger and outward ; scales whitish, 

 tinged and bordered with yellow. Length of the body 4 lines ; of 

 the wings 1\ lines. 



Tachina Petalus, n. s. Carta, capite abdomineque fulvis, huic ma- 

 culis utrinque tribus nigris, tlwrace purpureo cyaneoque vittato, 

 palpis antennis pedibusque fulvis, alls subfulvis. 



Head tawny, covered with golden down, having a hoary tinge 

 on each side of the crown ; face whitish, its sides fringed with bris- 

 tles towards the base ; epistoma prominent ; sucker black, clothed at 

 the tip with tawny hairs ; palpi tawny, beset with a few black 

 bristles : eyes red, not hairy : feelers tawny, shorter than the face ; 

 third joint nearly linear, flat above, slightly convex beneath, ob- 

 liquely truncated at the tip, about twice the length of the second 

 joint; bristle pitchy, downy, very slender, nearly thrice the length 

 of the third joint, tawny at the base, its first and second joints very 

 short; third joint rather stout near the base, very slender from 

 thence to the tip : chest and breast hoary ; chest flat, clothed with 

 black hairs and bristles, adorned with purple and blue reflections, 

 which are arranged in stripes ; hind border of the scutcheon tawny : 

 breast adorned with a metallic lustre, partly clothed with tawny 

 hairs : abdomen tawny, shining, beset with black hairs and with a 

 few black bristles, adorned with three black spots on each side: legs 

 tawny, clothed with black hairs and bristles; feet darker towards 

 the tips ; tips of the claws black : wings with a slight tawny tinge, 

 which is darkest along the fore border ; wing-ribs tawny ; veins 

 pitchy ; tip cross-vein forming a very obtuse angle with the fourth 

 longitudinal vein, nearly straight, joining the border of the wing at 

 a short distance above the tip ; lower cross-vein with two curves, 

 the lower largest and inward, the upper outward and more slight. 

 Length of the body 4 lines ; of the wings 7 lines. 



