CATALOGUE OF NORTH AMERICAN DIPTERA. 3/7 



WILLISTON, Synop. N. A. Syrph., 134, def. and table of species, 1886; 



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

 GiGLio-Tos, Boll. R. Univ. Torino, vi, No. 117, 1892 (Camcraiiia) ; I>itt. 



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

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



ainctliystiua group. 

 VERRALL, Brit. Flies, vin, 482, 1901. 

 CHAGNON, Et. Prelim, les Syrph., 47, 1901. 

 abdominalis WIEDEMANN, Auss. Zweifl., 11, 196. Cuba. 

 M. \CQUART, Dipt. Exot., ii, 2, 25. Cuba. 



COCKERELL, Jonr. Inst. Jamaica, i, 259 ("spiuigcr, Brit. Mas."). [Twns.] 

 TOWNSEND, Trans. Amer. Ent. Soc., xxii, 39. Jamaica. 

 amethystina BIGOT, Annales, 1875, 479- Mex. 



WILLISTON, Biologia, Dipt., in, 52, brief desc. Presidio, Mex. 

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



TOWNSEND, Trans. Amer. Ent. Soc., xxn, 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 TOWNSEND, pub. by Snow, in Kans. Univ. Quart., m, 241 ; Townsend, 



Trans. Amer. Ent. Soc., xxn, 40. Las Cruces, N. M. 

 HUNTER, Canad. Ent., xxix, 131, oc. and note. N. M. 

 ardua WIEDEMANN, Auss. Zweifl., n, 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., in, 



47. Cal. ; Guanaxuato, Mex. 

 HUBEARD, Psyche, May, 1899, suppl. i, i, larvae in giant cactus, Ccreus 



gigauteus, in Ariz. 

 bombylans LINNE, see cvccta. 

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



63. Meztillan, Mex. 

 csesariata WILLISTON, Biologia, Dipt., in, 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., in, 45, oc. Jalisco, Mex. 

 TOWNSEND, Trans. Amer. Ent. Soc., xxii, 41. Guanaxuato, Mex 

 See also under postica. 



chaetophora WILLISTON, Synop. N. A. Syrph., 149; Biologia, Dipt., in, 52, pi. 

 :> f. !5. Mex.; Guerrero, Isthmus of Tehuantepec, and Yucatan, 



Mex. 

 ? TOWNSEND, Annals and Mag. Nat. Hist., : x, 26, notes; identity seems 



doubtful. Vera Cruz. 



chalybescens WIEDEMANN, Auss. Zweifl., 11, 204. Brazil. 

 J.SNNICKE, Neue Exot. Dipt., 4. Cuba. 

 GiGLio-Tos, Ditt. del Mess., i, 52. Orizaba, Mc\ 

 comastes WILLISTON, Biologia, Dipt., in, 52. Orizaba, Mex 



See note to varicgata. 



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

 in, 51, oc. Ariz., N. M. ; N. Sonora, Mex. 



