LIST OF DIPTERA. 739 



few stout black bristles, some of which fringe the sides of the face 

 along half the length from the base; epistoma prominent: eyes 

 pitchy, hairy : sucker pitchy, clothed with tawny hairs ; palpi 

 black, beset with black bristles : feelers black, as long as the face ; 

 third joint linear, slender, slightly rounded at the tip, about four 

 times the length of the second ; bristle downy, not much longer than 

 the third joint, stout for two-thirds of its length, slender from thence 

 to the tip, its second joint twice the length of the first : chest and 

 breast covered with a gray bloom : chest clothed with black hairs 

 and bristles ; scutcheon dark ferruginous, armed with black spines : 

 abdomen obconical, hardly longer than the chest, adorned with 

 hoary reflections, beset with black hairs and spines : legs black, 

 clothed with black hairs and bristles; claws and foot-cushions 

 black: wings slightly gray, whitish at the base ; wing-ribs and veins 

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

 tuse angle with the fourth longitudinal vein, straight, joining the 

 border a little before the tip of the wing ; lower cross-vein with two 

 very slight curves, the lower inward, the other outward and very in- 

 distinct; scales white. Length of the body 3^ lines; of the wings 

 7 lines. 

 a. England. 



Tachina Megaleas, n. s. Cinerea, capite abdomineque cano mican- 

 tibus, huic vitta dorsali fasciisque tribus ?iigris, palpis fidvis, 

 antennis pedibusque nigris, alis subcinereis. 



Body black, clothed with black hairs and bristles ; head co- 

 vered with white lustre, which in some directions, and especially on 

 the crown, has a tawny hue, clothed behind and beneath with hoary 

 hairs, ferruginous on each side of the mouth ; epistoma yellow, not 

 prominent ; sides of the face fringed with bristles ; a black stripe be- 

 tween the eyelets and the base of the feelers : eyes ferruginous, not 

 hairy : sucker pitchy, clothed with pale tawny hairs ; palpi tawny, 

 slender, beset with black bristles : feelers black, nearly as long as 

 the face; second joint ferruginous at the tip; third joint much 

 longer than the second, flat above, slightly convex beneath, obliquely 

 truncated at the tip ; bristle nearly twice the length of the third 

 feeler-joint, its second joint full twice the length of the first; third 

 joint stout for little more than one-fourth of the length, very slender 

 from thence to the tip : chest and breast slightly gray ; scutcheon 

 armed with some long black spines: abdomen obconical, a little 

 longer than the chest, having beneath a slight dark ferruginous 

 tinge, adorned above with hoary lustre, which is interrupted by 

 a black stripe and by three black bands ; the bands are on the hind 

 borders of the segments, and successively increase in breadth to- 



3 t 2 



