80 LIST OF DIPTERA. 



Ptychoptera scutellaris, Hoffmansegg, Meig. Dipt. i. 206, 2, vi. 



290. Zett. Ins. Lapp. 850, 2. Gim. Bull. Soc. Imp. Nat. 



Mosc. 1846, xix. 2, 49, 2. Stceger, Kroger, Naturhist. Tids. 



iii. 2, 4. Tipula nigra ? Fabr. Sp. Ins. ii. 405, 18. Ent. Syst. 



iv. 239, 23. Ptychoptera nigra ? i^6r. Syst. Antl. 21, 2. 

 a. England. From Mr. Walker's collection. 



Ptychoptera paludosa, Meig. Dipt. i. 207, 3, vi. 290. Macq. 



Hist. Nat. Dipt. i. 76, 3. Gim. Bull. Soc. Imp. Nat. Mosc. 



1846, xix. 2, 49, 3. 

 a. England. 



Ptychoptera albimana, Fabr. Sust. Antl. 21, 3. Meig. Dipt. i. 

 207, 4, pi. 6,f 17. Macq. Hist. Nat. Dipt. i. 77, 4, pi. J,/. 9. 

 Tipula albimana, .Fa&r. i?w*. iSys*. iv. 239, 24. Gmel. Syst 

 Nat. v. 2815, 65. Stceger, Kroyer, Nat. Tids. iii. 1, 3. 



a. England. 



Ptychoptera metallica, n. s. Nigro-cenea, abdomine apice fulvo, 

 pedibus fuscis, fcmoribus fulvis, alis cinereis. 



Body black : head and chest bronze : abdomen bronze-black, 

 tawny at the tip : legs brown, pubescent ; thighs tawny, with brown 

 tips : wings gray, tawny along the fore border ; veins brown ; poisers 

 dull tawny. Length of the body 3 lines ; of the wings 6 lines. 



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

 G. Barnston, Esq. 



Some of the characters of this species differ from those of the 

 other Ptychopterae : the fifth longitudinal vein extends beyond two- 

 thirds of the length of the wing, and there joins the fore border; 

 the fourth is adjacent to the fifth till near the tip, and after emitting 

 a branch, which runs parallel to it, is forked beyond three-fourths of 

 the length of the wing ; the forks are very short, and one joins the 

 fore border, the other joins the branch before mentioned ; the latter 

 soon after its origin is divided, and its lower branch is again di- 

 vided ; at the source of its first division a short cross vein joins it to 

 the third, which is forked near the tip of the wing; the second is 

 simple, but is joined to the third by a cross vein, which has an out- 

 ward angle, whence a vein proceeds to the hind border near the tip 

 of the wing ; the first is forked. 





