96 C. H. TYLER TOWNSEND. 



TACHINOMYIA u. gen. 



Large, grayish and blackish, sometimes reddish species, consider- 

 ably resembling Tachina. Belongs in Tachininre. Head nearly 

 rectangular ; front projecting, about one-third width of head, frontal 

 bristles descending below base of third antennal joint; vertical 

 bristles a little strongest, and, with next two pairs, directed back- 

 ward, others forward and inward, more or less decussate; no orbital 

 bristles in male ; face somewhat receding, epistoma somewhat promi- 

 nent ; facial ridges bristly not more than half way to base of an- 

 tennae; sides of face wide, bare; cheeks almost as wide as one-half 

 the eye hight, with black hairs on lower portion and bristles on lower 

 border; vibriss?e inserted considerably above the oral margin; eyes 

 bare ; antennae shorter than the face, second joint somewhat elongate, 

 third joint about twice the length of the second ; ansta indistinctly 

 3-jointed, microscopically pubescent, thickened on basal third, second 

 joint hardly longer than wide ; proboscis short, not longer than 

 hight of head, fleshy, with well-developed labella?; palpi well devel- 

 oped, club shaped, somewhat thickened toward apex. Thorax same 

 width as head ; scutellum with an apical decussate pair of weak 

 macrochsetfe, and four lateral macrochteta^ on each side. Abdomen 

 elongate-conical, strongly vaulted, first segment not shortened, mac- 

 rochsetse marginal ; hypopygium much produced. Legs rather stout, 

 bristly ; claws and pulvilli of male very elongate. Wings longer 

 than abdomen, rather narrow, without or with very small costal spine, 

 third vein with several spines at base ; apical cell ending far above tip 

 of wing, open ; fourth vein bent nearly at a right angle, without stump 

 of vein, at most with a very slight wrinkle, apical cross-vein strongly 

 or slightly concave ; posterior cross- vein more or less sinuate, termi- 

 nating nearer to the bend of the fourth vein. Type, T. robusta n. sp. 



This genus differs from Tachina in the peculiar elongate form of 

 the abdomen, and the very prominent hypopygium ; also by the 

 vibrissse being inserted at a considerable distance above the oral 

 margin. 



Tachiiioinyia robiii^ta n. sp. "J,. — Eyes brown, front silvery with golden 

 lustre, frontal vitta dark brown or blackish, more than one-third width of front, 

 .split behind on each side of the ocelli ; face silvery, sides of face with a golden 

 lustre, cheeks silvery; antcnnie dark brown or blackish, first two joints and 

 base of third more or less reddish, .second joint bristly, arista blackish ; proboscis 

 dark brown or black, palpi reddish yellow, covered with black bristles ; occiput 

 cinereous, covered vvith long gray hairs, e.xcept bare space below vertex, fringed 

 with blac^k bristles. Thorax ciiierc>)us with four nearly parallel, very narrow. 



