394 CATALOGUE OF NORTH AMERICAN DIPTERA. 



pilosus Hunter, Canad. Ent., xxix, 137. — Brit. Col. 

 polygrammus Loew, see Aseniosyrphus mcxicanus. 

 porcus Walker, List, iii, 551. — Martin Falls, Canada. 



OsTEN Sacken, Cat, 250, note on type. 



WiLLiSTON, Synop. N. A. Syrph., 197, quotes both. 

 similis Macquart, Dipt. Exot., 11, 2, 64. — Ga. 



Walker, List, iii, 605 and 614 {fasciatus and EristaUs dccisus). — Martin 

 Falls, Canada; Trenton Falls, N. Y. 



J^NNiCKE, Nene Exot, Dipt., 94 (susiirrans). — 111. 



OsTEN Sacken, Cat., 134 and 250, note, syn. 



WiLLiSTON, Synop. N. A. Syrph., 189, pi. viii, f. 2. — New England and 

 Canada to Cal. 



Chagnon, fit Prelim, les Syrph., 58. — Montreal. ' 



N. J. — Smith Cat. ; Fla. — Johnson. 

 stipatus Walker, List, iii, 602. — Trenton Falls, N. Y. 



OsTEN Sacken, Cat., 250, note; probably same as conostoma. 

 trivittatus Fabricius, Syst. Antl., 234 (EristaUs). — Europe. 



Meigen, Syst. Beschr., iii, 273- 



Macquart, Hist. Nat Dipt., i, 510. 



Zetterstedt, Dipt. Scand., 11, 679. 



LoEW, Stett. Ent. Zeit., vii, 142. 



Schiner, Fauna Austr., i, 340. 



Bigot, Annales, 1880, 141, oc. in Persia. 



GiGLio-Tos, Ditt. del Mess., 11, 18, bibl. and oc. in Mexico City. 



ASEMOSYRPHUS. 



Bigot, Bull. Soc. Ent. France, 1882, cxxviii; Annales, 1883, 228. 

 GiGLio-Tos, Ditt. del Mess., 11, 18, 1893. 

 bicolor Bigot, Bull. Soc. Ent France, 1882; Annales, 1883, 350. — Mex. 



GiGLio-Tos, Boll. R. Univ. Torino, vii. No. 123, 1892 {impurus and oli- 



vaceus) ; Ditt. del Mess., 11, 19. — Mexico, several places. 

 mexicanus Macquart, Dipt. Exot, 11, 2, 64, pi. xi, f. 2 (Helophihis). — Mex. 

 Loew, Cent., x, 55 (Helophilus polygrammus). — Cal. [Will] 

 OsTEN Sacken, West. Dipt, 338 (id.), note on male. — Sierra Co.. Cal.; 



Ore. 

 Bigot, Bull. Soc. Ent. France, 1882 (oculifertis, nigrosciitatus, and flavo- 



caudatus) ; Annales, 1883, 350, 351 (id.). — Mex. [Will] 

 WiLLiSTON, Synop. N. A. Syrph., 186, pi viii, f. 7 (Helophilus) ; Biologia, 



Dipt., Ill, 68 (id.). — Wash., Cal; Mexico, several places. 

 Hunter, Canad. Ent, xxix, 137 (id.), oc. in S. D. 

 GiGLio-Tos, Boll. R. Univ. Torino, vii. No. 123, 1892 (griseus) ; Ditt 



del Mess., 11, 20, syn., etc. — Mexico, various places. 



MALLOTA. 



Meigen, Syst. Beschr., iii, 337, 1822. 



Macquart, Dipt Exot., 11, 2, 67, 1842 (Imatisma). 



Schiner, Fauna Austr., i, 342, 1862. 



WiLLiSTON, Synop. N. A. Syrph., 201, def. and table of species, 1886. 



Verrall, Brit. Flies, viii, 551, 1901. 



Chagnon, fit Prelim, les Syrph., 55, 1901. 

 albipilis Snow, Kans. Univ. Quart., iii, 244. — N. M. 

 bipartita Walker, List, iii, 599 (Merodon). — Ga. 



