366 CATALOGUE OF NORTH AMERICAN DIPTERA. 



genualis WILLISTON, Synop. N. A. Syrph., 86. N. H. 



Beulah, N. M. Skinner. 

 glacialis JOHNSON, Ent. News, 1898, 18 (Mclanostoina~). Alaska. 



COQUILLETT, Proc. Wash. Acad. Sci., 11, 433, oc. in Alaska, and gen. ref. 

 [gracilis MEIGEN, of Walker, was wrongly identified; see Osten Sacken, Cat., 



122.] 



gracilis COQUILLETT, Proc. Wash. Acad. Sci., n, 432. Juneau, Alaska. 

 , grossulariae MEIGEN, Syst. Beschr., in, 306. Europe. 



MACQUART, Hist. Nat. Dipt., i, 542; Dipt. Exot, u, 2, 92, pi. xvi, f. 3 

 (Icsitcurii) . Europe ; Philadelphia. 



ZETTERSTEDT, Dipt. Scand., n, 705 and xiii, 5091 (both Sctei'a). 



WALKER, Dipt. Saund., 242, pi. vi, f. 5 (Epistrophe conjungcns). U. S. 



SCHINER, Fauna Austr., i, 310. 



OSTEN SACKEN, Proc. Bost. Soc. Nat. Hist., xvni, 143 (Icsucurn). N. 

 and Mid. States. 



WILLISTOX, Synop. N. A. Syrph., 80, pi. iv, f. 2 (lesueurii). White Mts., 

 N. H.; Wash. 



CHAGXOX, fit. Prelim, les Syrph., 36 (id.). St. Hilaire, Quebec. 



VERRALL, Brit. Flies, vin, 675, syn. 



N. J. Smith Cat. ; White Alts.," N. H. Slosson. 

 gurges WALKER, see Mesogramma boscii. 

 hecticus JJEXXICKE, see Mesogramma polila. 

 interrogans WALKER, see Mesogramma gcminata. 

 intrudens OSTEN SACKEN, W r est. Dipt., 326. Cal. 



WILLISTON, Synop. N. A. Syrph., 70, quotes desc. 



SNOW, Kans. Univ. Quart., in, 232, note. Col. 



HUNTER, Canad. Ent., xxix, 129, notes. Cook's Inlet, Alaska. 



Hudsonian Zone. X. M. Cockerell. 



jactator LOE\V, Wien. Ent. Monatsch., v, 40; Cent., vi, 46. Cuba, 

 latrans WALKER, see Chilosia. 

 lautus GiGLio-Tos, Boll. R. Univ. Torino, vn, No. 132, 1892; Ditt. del Mess., n, 



29, pi. 11, f. 4. Tuxpango, Mex. 

 lesueurii MACQUART, see grossnlaricc. 

 limbatus FABRICIUS, Syst. And., 251 (Scow a). W. I. 



WIEDEMAXN, Auss. Zweifl., n, 133. 

 lotus WILLISTON, Synop. N. A. Syrph., 75 ; Biologia, Dipt, in, 16, oc. Ariz. ; 



Guerrero, Mex. 

 lunulatus MEIGEN, Syst. Beschr., in, 299. Europe. 



SCHINER, Fauna Austr., i, 303. 



LUNDBECK, Dipt. Groenl., i, 302, oc. in Greenland. 



VERRALL, Brit. Flies, vin, 351. 

 macularis ZETTERSTEDT, Dipt. Scand., n, 730 (Scava). Europe. 



SCHINER, Fauna Austr., i, 302. 



COQUILLETT, Proc. Wash. Acad. Sci., n, 433, oc. in N. A. Yakutat, 



Alaska, 

 maculifrons BIGOT, Annales, 1884, 89. Ore. 



WILLISTON, Synop. N. A. Dipt., 88, quotes desc. 

 [maculosus MEIGEN, of Walker, was wrongly identified ; see Osten Sacken, Cat., 



122.] 

 mentalis WILLISTON, Synop. N. A. Syrph., 72. Wash. 



HUNTER, Canad. Ent., xxix, 130, note. Cook's Inlet, Alaska. 



COQUILLETT, Proc. Wash. Acad. Sci., 11, 431, oc. in Alaska, 

 montivagus SNOW, Kans. Univ. Quart., in, 236. Col., 11,000-12,000 ft. 



