LIST OF DIPTERA. 123 



the other veins white and hardly visible ; brands and poisers tawny, 

 the latter with brown knobs. Length of the body 3 lines ; of the 

 wings 6 lines. 



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

 G. Barnston, Esq. 



Bibio gracilis, n. s., mas. Niger, pedibus piceis, femoribus anticis 

 nigris, alls subfuscis. 



Body black, and clothed with rather long black hairs : eyes 

 dark red: feelers black: legs piceous, somewhat hairy, long and 

 slender ; thighs darker than the shanks ; fore thighs black ; tips of 

 the shanks and base of the feet of the hind legs dilated: wings 

 slightly tinged with brown ; veins and brands brown ; poisers pi- 

 ceous, rather long. Length of the body 2i lines ; of the wings b\ 

 lines. 



a. Nova Scotia. From Lieut. Redman's collection. 



Rhyphus, Latreille. 



Rhyphus fuscatus, Meig. Dipt. i. 321, I, pi. 11,/. 18. Macq. 

 Hist. Nat. Dipt. i. 171, 1, pi. 4, /. 14. Gim. Bull. Soc. Imp. 

 Nat. Mosc. 1846, xix. 2, 81, I. Musca nigricans, Linn. Faun. 

 Suec. 553, 2310. Tipula fuscata, Fabr. Sp. Ins. ii. 410, 57. 

 Rhagio fuscatus, Fabr. Mant. Ins. ii. 332, 5. Ent. Syst. iv. 

 273, 7. Sciara fuscata, Fabr. Syst. Antl. 58, 7. Musca fus- 

 cata, Gmel. Ed. Syst. Nat. v. 2865, 315. Anisopus fuscus, 

 Meig. Klass. Zweif. i. 103, 1. Rhagio fuscatus, Meig. Klass. 

 Zweif. i. 304, d. Rhyphus nigricans, Blanch. Hist. Nat. An. 

 Art. iii. 575. 



a. England. 



Rhyphus punctatus, Meig. Dipt. i. 322, 2. Macq. Hist. Nat. Dipt. 



i. 172, 2. Zett. Ins. Lapp. 805, 1. Rhagio punctatus, Fabr. 



Ent. Syst. iv. 274, 13. Meig. Klass. Ziveif. i. 103, 2. Sciara 



punctata, Fabr. Syst. Antl. 59, 13. Musca bilineata, Gmel. 



Syst. Nat. v. 2866, 320. Anisopus nebulosus, Meig. Klass. 



Zweif. i. 103, 2. Sylvicola ccelebs, Harris, Ex. 102, pi. 31, 



/8? 

 a. England. 



Rhyphus fenestralis, Latr. Hist. Nat. Cr. et Ins. xiv. 291. Gen. 

 Crust, iv. 262. Cons. Gen. 442. Meig. Dipt. i. 323, 3. Lam. 

 Anim. sans Verteb. iii. 436, 1. Guer. Icon. Regn. Anim. Ins. 

 pi. 93, /. 3. Curt. Brit. Ent. 102. Macq. Hist. Nat. Dipt. i. 

 172, 3. Gim. Bull. Soc. Imp. Nat. Mosc. 1846, xix. 2, 82, 3. 



M 2 



