CATALOGUE OF NORTH AMERICAN DIPTERA. 393 



groenlandicus O. FABRICIUS, Fauna Grcenl., 208 (Tabanns). Greenland. 



ZETTERSTEDT, Ins. Lapp., 595 (arcticus} ; Dipt. Scand., n, 6/8 (id.). Eu- 

 rope. 



STVEGER, Kroyer's Tidskr., X. R.. i, 359 (arcticus), oc. in Greenland. 



LOEW, Stett. Ent. Zeit., \i, 119. 



CURTIS, Ins. of Ross' Exped., LXXVII (bilineata). [Schiodte.] 



? WALKER, List, in, 607 (latro). Martin Falls and Nova Scotia. [O. S., 

 with a doubt.] 



WILLISTON, Synop. N. A. Syrph., 185. Greenland, Lapland. 



LUNDBECK, Ent. Unters. i West-Groenl., Heft vu, pi. vn, f. 17: Dipt. 



Grcenl., i, 304. bib!., etc. Greenland, 

 hamatus LOEW, Cent., iv, 79. Huds. B. Terr. 



WILLISTON, Synop. N. A. Syrph., 195, transl. orig. desc. 



N. J. Smith Cat. 

 hybridus LOEW, Stett. Ent. Zeit., vn, 141. Europe. 



SCHINER, Fauna Austr., i, 339. 



MACQUART, Dipt. Exot., Suppl. n, 60 (novce-scotia'). Nova Scotia. [Ver- 

 rall, from type.] 



WILLISTON, Synop. N. A. Syrph., 197, quotes Macq. 



VERRALL, Brit. Flies, vm, 529, full discussion. England. 

 integer LOEW, Cent., iv, 76. N. Y. 



WILLISTON, Synop. N. A. Syrph.. 195, transl. orig. desc. 



HUNTER, Canad. Ent., xxix, 139. -N. J. 



N. J. Smith Cat. 

 Icetus LOEW, Cent., iv, 77. N. Y.. Wiv 



WILLISTON, Synop. N. A. Syrph.. 189, pi. vm, f. 6. Conn., N. Y. 



TOWXSEND, Trans. Amer. Ent. Soc, xxn, 51 ( aiircopilis). Constantine, 

 Mich. 



HUNTER, Canad. Ent., xxix, 139, syn. 

 latifrons LOEW, Cent., rv, 73. Nebr. 



OSTEN SACKEN, West. Dipt., 337, notes. Sonoma Co., Cal. ; Red R. of 

 the North. 



W'ILLISTON, Synop. N. A. Syrph., iSS. Mass, to Cal. and Wash. 



WILLISTON, Biologia, Dipt., in, 68, oc. in Guerrero, Mex. 



LINTNER, 7th N. Y. Rept, 228, 234, life hist., bibl, etc. N. Y. ; this is 

 the H. similis of the 2d Rept. 



HUNTER, Canad. Ent., xxix, 138. oc. at Cook's Inlet, Alaska. 



CHAGNON, fit. Prelim, les Syrph., sg.^Montreal. 



N. J. Smith Cat. 



latitarsis HUNTER, Canad. Ent., xxix. 134. Minn. 

 lineatus FABRICIUS; see conostoina for the species thus identified by Osten 



Sacken. 

 lunulatus MEIGEN, Syst. Beschr., in, 370. Europe. 



SCHINER, Fauna Austr., i, 340. 



COQUILLETT, Proc. Wash. Acad. Sci., n, 436, oc. in N. A. Alaska. 



VERRALL, Brit. Flies, vm, 540, fig. 

 mexicanus MACQUART, see Ascinosyrplnis. 



modestus WILLISTON, Synop. N. A. Syrph., 19-'. pi. vm, f. 4. Wyo. 

 novas- scotias MACQUART, see hybridus. 

 obscurus LOEW, Cent., iv, 74. Col. 



WILLISTON, Synop. N. A. Syrph., 196, transl. and notes, 

 obsoletus LOEW, Cent., iv, 75. Fort Resolution, Huds. B. Terr. 



WILLISTON, Synop. N. A. Syrph., 196, transl. orig. desc. 





