LIST OF DIPTERA. 591 



Syrphus iEsyctes, n. s., mas. Nigro-ceneus, abdomine piceo-eeneo, 

 antennis pedibusque piceis, genubus anterioribus fulvis, alls sub- 

 cinereis. 



Head brassy, clothed with black hairs, covered in front with 

 white down : mouth black : feelers piceous ; bristle black : eyes 

 dark red : chest and breast brassy black ; the former clothed with 

 black hairs, the latter with shorter hoary hairs : abdomen pitchy- 

 bronze, clothed with short black hairs : legs pitchy, hairy ; four 

 front knees tawny : wings slightly gray ; wing-ribs and poisers fer- 

 ruginous ; veins black. Length of the body 2^ lines ; of the wings 

 5 lines. 



a. St. Martin's Falls, Albany Eiver, Hudson's Bay. Presented by 

 G. Barnston, Esq. 



Syrpkus Bosarum, Fabr. Ent. Syst. iv. 307, 109. Meig. Dipt, iii. 

 338, 94. Macq. Hist. Nat. Dipt. i. 545, 39. Scaeva Bosarum, 

 Fabr. Syst. Anil. 251, 11. Panz. Faun. Germ. 108, 14. 

 Musca Bosarum, Gmel. Ed. Syst. Nat. v. 2877, 366. 



a. England. 



b. France. 



c. ? From Mr. Children's collection. 



Group V. Platycheirus, St. Fargeau and Serville. 



Syrphus granditarsa. Musca granditarsa, Forst. Cent. i. 99. 



Stew. El. ii. 263. Turt. iii. 626. M. brassicaria, Panz. 



Faun. Germ. 20, 20. Syrphus lobatus, Meig. Dipt. iii. 336. 



S. Ocymi, Fabr. Ent. Syst. iv. 309, 114. Panz. Faun. Germ. 



82, 18. Meig. Dipt. iii. 337, 93. Macq. Mist. Nat. Dipt. i. 



546, 40. Schiodte, Kroyer, Nat. Tids. iv. 326, 9. Scaeva 



Ocymi, Fabr. Syst. And. 252, 18. Fall. Syrph. 48, 23. 



Zett. Ins. 607, 36. 

 a. England. 



b. ? From Mr. Children's collection. 



c. St. Martin's Falls, Albany Biver, Hudson's Bay. Presented by 



G. Barnston, Esq. 



Syrphus albimanus, Fabr. Sp. Ins. ii. 434, 63. Ent. Syst. iv. 

 310, 117. Meig. Dipt. iii. 333, 87. Macq. Hist. Nat. Dipt. 

 i. 546, 41. Schiodte, Kroyer, Nat. Tids. iv. 326, 8. Musca 

 albimanus, Gmel. Ed. Syst. Nat. v. 2876, 364. Stew. El. ii. 

 266. Turt. iii. 651. Scaeva albimana, Fabr. Syst. Antl. 253, 

 23. Zett. Ins. Lapp. 607, 35. 



a. England. 



b. Aix-la-Chapelle. Presented by F. Walker, Esq. 



