LIST OF DIPTEEA. 577 



Group III. Doros, Meigen. 



Syrphus conopseus, Fabr. Sp. Ins. ii. 429, 38. Fnt. Syst. iv. 297, 

 69. Latr. Gen. Crust, iv. 325. Cons. Gen. 443. Meig. 

 Dipt. 296, 35. S. coarctatus, Panz. Faun. Ins. Germ. 

 45, /. 22. Musca conopsea, Gmel. Ed. Syst. Nat. v. 2868, 21. 

 Schell. Gen. Mouch. pi. 10, /. 1. furt. iii. 645. M. 

 profuges, Harr. Ex. 81, pi. 24, /. 25. Mulio conopseus, 

 Fabr. Ent. Syst. Suppl. 559, 6. Milesia conopsea, Fall. 

 Syst. Antl. 5, 29. Scaeva conopsea, Fall. Syrph. 37, 2. 

 Doros conopseus, Meig. Macq. Hist. Nat. Dipt. i. 5550, 1. 



a. England. 



b. France. 



c. ? From Mr. Children's collection. 



Syrphus Balyras, n. s., fern. Niger, thoracis lateribus flavo trima- 

 culatis, abdomine fasciis quatuor flavis arcuatis ornato, antennis 

 fulvis, pedibus flavis, femoribus posterioribus nigro cinctis, tibiis 

 posticis apice piceis, pedibus anticis nigris, alis limpidis. 



Body black : head covered with golden down : eyes dark red, 

 their facets larger in front : feelers and their bristles bright tawny : 

 chest clothed with short tawny hairs, adorned with three yellow 

 spots on each side ; the middle pair of spots transverse and extend- 

 ing to the breast: abdomen convex, adorned with four slightly 

 arched, yellow bands : legs yellow ; four hinder thighs with broad 

 black bands ; hind shanks pitchy towards the tips ; fore legs black, 

 their shanks yellow at the base : wings colourless, tawny along the 

 fore borders for nearly half the breadth ; wing-ribs and veins pale 

 tawny ; poisers reddish tawny. Length of the body 5 lines ; of the 

 wings 9 lines. 



a. New York. Presented by the Entomological Club. 



b. Trenton Falls. Presented by E. Doubleday, Esq. 



Group IV. Scaeva, Fallen. 



Syrphus festivus, Fabr. Sp. Ins. ii. 430, 47. Ent. Syst. iv. 300, 

 82. Latr. Gen. Crust, iv. 325. Cons. Gen. 443. Musca fes- 

 tiva, Linn. Syst. Nat. ii. 986. Faun. Suec. 1812. Gmel. Ed. 

 Syst. Nat. v. 2874, 45. Schrank, Faun. Boic. iii. 2433. Ins. 

 Austr. 906. Stew. El. ii. 265. Turt. iii. 647. M. arcuata, 

 Don. Brit. Ins. xii. 84, pi. 424, /. 2. M. anteambulo, Harr. 

 Ex. 60, pi, 15,/. 17. Musca, &c, Geoff. Ins. ii. 505, 27, pi. 

 18, /. 1. Schaff. Icon. pi. 36, /. 10. M. citrofasciata, Deg. 



