704 LIST OF DIPTERA. 



disk ; wing-ribs and some of the veins tawny, the other veins pitchy ; 

 tip cross-vein forming a nearly right angle with the longitudinal 

 vein, much curved inward near the base, almost straight from 

 thence to the tip which joins the border at some distance above the 

 tip of the wing ; lower cross-vein with two long and very slight 

 curves, the lower inward, the upper indistinct and outward ; scales 

 white. Length of the body 5^ lines ; of the wings 13 lines. 

 a. Venezuela. From Mr. Dvson's collection. 



Group VI. 



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

 slightly convex above, flat beneath, rounded at the tip ; second joint 

 of the bristle about twice the length of the first. 



Tachina sequabilis, n. s. Fulva, capite albido, thoracis vittis qua- 

 tuor obscuiioribus, antennis fulvis, articulo 3° nigro, pedibus 

 fulvis, alls fuscis. 



Head yellowish white, clothed beneath with white hairs, beset 

 on the crown with black hairs, and in front with black bristles, 

 adorned from the eyelets to the feelers with a brown stripe between 

 two tawny-gray stripes ; epistoraa very prominent ; no bristle on the 

 sides of the face ; sucker black, clothed at the tip with short yellow 

 hairs : eyes dark red : feelers tawny, as long as the face ; third 

 joint black, tawny at the base, slightly convex above, flat beneath, 

 rounded at the tip, rather less than twice the length of the second 

 joint ; bristle black, downy, tapering from the base to the tip, much 

 less than twice the length of the third feeler-joint ; its second joint 

 about twice the length of its first : chest and breast dull tawny, be- 

 set with a few black hairs and bristles: chest adorned with four 

 slender indistinct darker stripes : abdomen bright tawny, with paler 

 reflections, armed with stout black spines, which are arranged in 

 clusters along the back and on each side of the hind borders of the 

 segments : legs tawny, clothed with black hairs and bristles ; tips of 

 claws black; foot-cushions yellow: wings dark brown; wing-ribs 

 and veins tawny ; tip cross-vein forming a right angle with the 

 fourth longitudinal vein, very slightly curved inward near the base, 

 straight from thence to the tip which joins the border at some dis- 

 tance above the tip of the wing ; lower cross-vein almost straight 

 for half the length from the base, slightly and irregularly curved 

 outward from thence to the tip ; scales dingy white. Length of the 

 body 5 lines ; of the wings 1 1 lines. 



a. Venezuela. From Mr. Dyson's collection. 



