1100 LIST OF DIPTERA. 



ception of the fifth, which forms a slightly obtuse angle at the junction 

 with the lower cross-vein, the latter is nearly upright, hardly curved 

 outward, parted by thrice its length from the middle cross-vein, by 

 four times its length from the end of the fourth longitudinal vein, 

 and. by less than its length from the end of the fifth longitudinal 

 vein ; poisers pitchy. Length of the body f lines ; of the wings l£ 

 line. 



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

 G. Barnston, Esq. 



Group Nupharia, Desv. Essai Myod. 785. 

 Discomyza, Meigen. 



Discomtza incurva, Meig. Dipt. vi. 76, pi. 58, /. 14 — 17. Macq. 



Hist. Nat. Dipt. ii. 529, pi 21, /. 13. Stenh. Monogr. 265, 1. 



Psilopa incurva, Fall. Hydrom. 6, 1. Zett. Dipt. Scand. 



v. 1941, 7. Notiphila incurva, Hal. Ann. Nat. Hist. iii. 223, 



5. 

 a. England. Presented by F. Walker, Esq. 



Group Dryxo, Desv. Essai Myod. 787. 



Ochthera, Latreille. 



Ochthera Mantis, Latr. Hist. Nat. xiv. 391. Gen. Crust, iv. 347, 

 pi. 15, f. 10. Meig. Dipt. vi. 78, pi. 58,/. 18—21. Macq. 

 Hist. Nat. Dipt. ii. 519, pi. 21, /. 7. Hal. Ann. Nat. Hist. iii. 

 220, 1. Loew, Ent. Zeit. Stett. viii. 371, 1. O. manicata, 

 Fall. Kongl. Vet. Acad. Handl. 1813, 244. Desv. Essai Myod. 

 787, 1. Musca manicata, Fabr. Ent. Syst. iv. 334. M. 

 Mantis, De Geer, Mem. vi. 143, pi. 8, /. i5, 16. Tephritis 

 manicata, Fabr. Syst. Antl. 323. 



a. England. 



b. Ireland. Presented by F. Walker, Esq. 



c. ? From Mr. Children's collection. 



Ochthera empidiformis ? Say, Journ. Acad. Philad. iii. 99. Wied. 



Auss. Zweif. ii. 446. 

 a. Florida. Presented by E. Doubleday, Esq. 



