LIST OF DIPTERA. 797 



TachSna Corythus, n. s. Nigro-fusca facie fiava, thoracis lateribus 

 abdomineque fulvis, palpis antennis pedibusque nigris, femoribus 

 fulvis, alis fusco-cinereis, marginibus posticis subcinereis. 

 Body very dark brown, clothed with black hairs and bristles: 

 head prominent about the insertion of the feelers, adorned with a 

 tawny stripe on each side of the crown ; face yellow, fringed with 

 bristles at the base ; epistoma not prominent ; eyes pitchy, not hairy : 

 sucker tawny, clothed with tawny hairs ; palpi black, beset with black 

 bristles : feelers black, shorter than the face ; third joint nearly 

 spindle-shaped, hardly longer than the second, bristle much longer 

 than the third joint, its fiist joint obsolete ; second very short; third 

 stout for one-third of the length, slender from thence to the tip: 

 sides of the chest tawny ; abdomen tawny, nearly cylindrical, a little 

 narrower and much longer than the chest : legs black, clothed with 

 black hairs and bristles; thighs tawny with black tips ; foot- cushions 

 large, tawny : wings for more than half the breadth dark gray, with 

 brown stripes along the veins, pale gray along the hind borders ; 

 wing-ribs and veins black ; fourth longitudinal vein slightly waving 

 in the latter part of its course ; middle cross-vein clouded with 

 brown ; tip cross-vein forming an extremely obtuse angle or rather 

 curve with the fourth longitudinal vein, slightly curved outward, 

 joining the third longitudinal vein at some distance before the tip of 

 the latter ; lower cross-vein with two curves, the lower inward, less 

 distant than the other which is outward ; scales yellowish white. 

 Length of the body 3J lines ; of the wings 6 lines. 

 a. Georgia. From Mr, Abbot's collection. 



Gonia Meigen. 



Gonia capita ta, Meig. Dipt. iv. 3, 8. Curt. Brit. Ent. 533, 1. 

 Macq. Hist. Nat. Dipt. ii. 85, 1. Ann. Soc. Ent. France, 2me 

 serie, iii. 277, I, pi. 5, /. 8. Zett. Dipt. Scand. iii. 1192, 1. 

 Musca capitata, Degeer, Ins. vi. 12, 2, pi. \,f. 3. Tachina ca- 

 pitata, Fall. Muse. ii. 18. Reaumuria capitata, Desv. Essai 

 Myod. 80, 2. Rhedia vernalis, Desv. Essai Myod. 75, 1. 

 Var ? Gonia vittata, Meig. Dipt. iv. Macq. Ann. Soc. Ent. 

 France^, 2me serie, iii. 279, 3, pi. 5,/. 9. 



a. England. 



b. England. From Mr. Shuckard's collection. 



Gonia ornata, Meig. Dipt. v. 32, pi. 42, /. 10. Macq. Ann. Soc. 

 Ent. France, 2me serie, iii. 278, 2. 



a. ? From Mr. Children's collection. 



PART IV. 4 A 



