CATALOGUE OF NORTH AMERICAN DIPTERA. 377^ 



WiLLiSTON, Synop. N. A. Sj-rph., 134, def. and table of species, 1886; 



Biologia, Dipt., iii, 43, table of Cent. Amer. species, 1891. 

 GiGLio-Tos, Boll. R. Univ. Torino, vi. No. 117, 1892 {Camcrania) ; Ditt. 



del Mess., i, 45, 1892 (id.). 

 Town SEND, Annals and Mag. Nat. Hist., xx, 26, table of species of 



atnctliystiiia group. 

 Verrall, Brit. Flies, viii, 482, 1901. 

 Chagnon, fit. Prelim, les Syrph., 47, 1901. 

 abdominalis Wiedemann, Auss. Zweifl., 11, 196. — Cuba. 

 Macquart, Dipt. Exot., 11, 2, 25. — Cuba. 



CoCKERELL, Jour. Inst. Jamaica, i, 259 (" spinigcr, Brit. Mus."). [Twns.] 

 TowNSEND, Trans. Amer. Ent. Soc, xxii, 39. — Jamaica. 

 amethystina Bigot, Annales, 1875, 479. — Mex. 



WiLLiSTON, Biologia, Dipt., iii, 52, brief desc. — ^Presidio, Mex. 

 anna Williston, Synop. N. A. Syrph., 138, pi. vi, f. 8.— Ariz., N. M. 



TowNSEND, Trans. Amer. Ent. Soc, xxii, 40, female; Annals and Mag. 

 Nat. Hist., XIX, 141, oc— N. M. ; Rio Ruidosa, N. M. 

 aperta Walker, Trans. Ent. Soc, n. sen, v, 292. — Mex. 

 apicalis Loew, Cent., vi, 36. — Cuba. 



Williston, Synop. N. A. Syrph., 149, transl. orig. desc. 

 apicifera Townsen^d, pub. by Snow, in Kans. Univ. Quart., iii, 241 ; Townsend, 

 Trans. Amer. Ent. Soc, xxii, 40. — Las Cruces, N. M. 

 Hunter, Canad. Ent., xxix, 131, oc. and note. — N. M. 

 ardua Wiedemann, Auss. Zweifl., 11, 204. — Surinam. 

 Rondani, Es. Ins. Ditt. Brasil., 1848. — Brazil. 

 GiGLio-Tos, Ditt. del Mess., i, 56. — Orizaba, Mex. 

 avida Osten Sacken, West. Dipt, 333. — Cal. 



Williston, Synop. N. A. Syrph., 139, pi. vi, f. 12; Biologia, Dipt., iii. 



47. — Cal. ; Guanaxuato, Mex. 

 Hubbard, Psyche, May, 1899, suppl. i, i, larvae in giant cactus, Ccrcus 

 giganteus, in Ariz, 

 bombylans Linne, see evecta. 

 brevis Giglio-Tos, Boll. R. Univ. Torino, vii, No. 123, 1892; Ditt. del INIess., i, 



63.— Meztillan, Mex. 

 caesariata Williston, Biologia, Dipt., iii, 49. — Orizaba, Mex. 



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

 del Mess., i, 60.— Meztillan, Mex. 

 castanea Bigot, Annales, 1875, 476. — Mex. 



Williston, Biologia, Dipt., iii, 45, oc. — Jalisco, Mex. 

 Townsend, Trans. Amer. Ent. Soc, xxii, 41. — Guanaxuato, Mex. 

 See also under postica. 

 chaetophora W^illiston, Synop. N. A. Syrph., 149; Biologia, Dipt., in, 52, pi. 

 I, f. 15. — Mex. ; Guerrero, Isthmus of Tehuantepec, and N. Yucatan, 

 Mex. 

 ? Townsend, x\nnals and Mag. Nat. Hist., xx, 26, notes; identity seems 

 doubtful. — Vera Cruz. 

 chalybescens Wiedemann, Auss. Zweifl., 11, 204. — Brazil. 

 J^NNiCKE, Neue Exot. Dipt., 4. — Cuba. 

 Giglio-Tos, Ditt. del Mess., i, 52. — Orizaba, Mex. 

 comastes Williston, Biologia, Dipt., iii, 52. — Orizaba, Mex. 



See note to variegata. 

 comstocki Williston, Synop. N. A. Syrph., 138, pi. vi, f. 9; Biologia, Dipt., 

 HI, 51, oc. — Ariz., N. M. ; N. Sonora, Mex. 



