738 LIST OF DIPTERA. 



Tachina Crisia, n. s. Nigro-cinerea, capite antico ferrugineo, tho- 

 racis antici vittis quatuor nigris, abdominis segmentorum lateri- 

 bus posticis canis,palpis antennis pedibusque nigris, alis subcine- 

 reis basi venarumque marginibus subfuscis. 

 Body black : head ferruginous in front, yellow about the 

 mouth, clothed above with black hairs, and beneath with pale tawny 

 hairs ; sides of the face fringed with bristles at the base ; epistoma 

 prominent : eyes dark red, hairy : sucker black, pitchy, and clothed 

 with pale tawny hairs at the tip ; palpi black, slender, beset with 

 black bristles : feelers black, as long as the face ; third joint nearly 

 twice the length of the second, increasing in depth from the base to 

 the tip, which is rounded ; bristle tapering, more than twice the 

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

 of the first: chest and breast clothed with black hairs and bristles, 

 slightly covered with a gray bloom, which is interrupted by four 

 slender black stripes on the fore part of the chest : abdomen shin- 

 ing, obconical, longer than the chest, clothed with black hairs, 

 armed with black spines, covered with hoary bloom on each side of 

 the hind borders of the segments : legs black, clothed with black 

 hairs and bristles; foot-cushions and claws ferruginous ; tips of the 

 claws black : wings light gray, with a brownish tinge at the base 

 and along the borders of the veins ; wing-ribs tawny ; veins pitchy, 

 tawny at the base ; tip cross-vein forming a nearly right angle with 

 the fourth longitudinal vein, slightly curved inward along its whole 

 length, joining the border at some distance above the tip of the wing ; 

 lower cross-vein with three curves, the first short, slight and outward, 

 the second long, distinct and inward, the third long, slight and out- 

 ward ; scales dingy white, with pale yellow borders ; poisers tawny. 

 Length of the body 5 lines ; of the wings 9 lines. 

 a. England. 



Tachina rudis, Fall. Muse. 27, 56. Meig. Dipt. iv. 246, 13. Zett. 



Dipt. Scand. iii. 1100, 97. Nemorea rudis, Meig. Dipt. vii. 



221, 3. 

 a. England. 



Tachina fallax, Meig. Dipt. iv. 321, 142. 

 a. England. 



Tachina Tyche, n. s. Cinerea, capite abdomineque cano micantibus, 

 scutello ferrugineo, palpis antennis pedibusque nigris, alis subci- 

 nereis basi albidis. 



Body black : head covered with hoary lustre, thickly clothed 

 beneath with yellowish white hairs, beset above and in front with a 



