708 LIST OF DIPTERA. 



than the chest, adorned with a row of black spots, armed with black 

 spines, which are chiefly arranged in groups and abound most at the 

 tip: legs tawny, clothed with black hairs and bristles; claws 

 and foot-cushions pale yellow ; foot-cushions very small ; tips of 

 claws black : wings gray, tawny towards the base ; wing-ribs and 

 veins tawny ; tip cross-vein forming an acute angle with the fourth 

 longitudinal vein, which has a knob beyond it, much curved inward 

 near the base, straight from thence to the tip, which joins the bor- 

 der at some distance above the tip of the wing ; lower cross- vein 

 with two very indistinct curves, the lower inward, the upper out- 

 ward ; scales pale gray. Length of the body 5 — 6 lines ; of the 

 wings 12 — 13 lines. 



Var. 0. Body rather darker ; third joint of the feelers pitchy, its 

 base tawny. 



a. Nova Scotia. From Lieut. Redman's collection. 



b. United States. Presented by the Entomological Club. 



Group XI. 



Third joint of the feelers very much longer than the second, 

 very convex above, slightly concave beneath, rounded at the tip ; 

 second joint of the bristle twice the length of the first. 



Tachina signifera, n. s. Flavo-fusca, capite albido, scutello ferru- 

 gineo, abdomine nigro, apicem versus fulvo maculato, antennis 

 fulvis, articulo 3° nigro, pedibus fulvis femoribus basi nigris, 

 alls cinereis basi fulvis. 



Head yellowish white, gray with a tawny stripe between the 

 eyes, beset above with a few black bristles, clothed beneath with 

 white hairs ; epistoma very prominent ; no bristles on the sides 

 of the face ; sucker black, pitchy, and clothed with short tawny hairs 

 at the tip ; palpi tawny : eyes red, slightly bronzed : feelers tawny, 

 as long as the face ; third joint black, very much longer than the 

 second, very convex above, slightly concave beneath, rounded at the 

 tip ; bristle black, rather stout, tapering from the base to the tip, 

 not near twice the length of the third feeler-joint, its second joint 

 long, twice the length of the first: chest yellowish brown, clothed 

 with black hairs and bristles ; scutcheon ferruginous : abdomen 

 black, shining, beset with black hairs, bristles and spines, very dark 

 red on each side ; back near the tip adorned with a pale buff mark 

 somewhat resembling a Psi reversed ; tip ferruginous : legs tawny, 

 clothed with black hairs and bristles ; thighs black towards the base, 

 claws and foot-cushions pale tawny ; tips of the claws black i wings 



