37 CATALOGUE OF NORTH AMERICAN DIPTERA. 



TOWNSEND, Trans. Amer. Ent. Soc., xxn, 41; Psyche, 1897, 148, notes; 



Annals and Mag. Nat. Hist., xix, 141, notes. N. M. 



cordiae TOWNSEND, Annals and Mag. Xat. Hist., xx, 27. Vera Cruz, Mex. 

 craverii GiGLio-Tos, Boll. R. Univ. Torino, vn, No. 123, 1892; Ditt. del Mess., 



i, 49. Mex. 

 dichroica GiGLio-Tos, Boll. R. Univ. Torino, vn, No. 123, 1892; Ditt. del Mess., 



I, 55. Huastec, Mex. 



estebana TOWXSEND, Proc. Cal. Acad. Sci., iv, 612. Lower Cal. 

 esuriens FAERICIUS, Syst. Ent., iv, 281 (Syrf>hus) ; Syst. Antl., 226 (id.). W. I. 

 SAY, Jour. Acad. Sci. Phil, vi, 166 (yiolacea) ; Compl. Works, n, 360 



(id.). Mex. 



WlEDEMANN, AtlSS. Zweifl., II, 197- 



MACQUART, Dipt. Exot., n, 2, 25, pi. v, f. 3 (mcxicana) ; Suppl. i, 123, 



pi. xi, f. 2 (dispar). Mex.; New Grenada. 



WALKER, List, in, 636 (mctallifera). Venezuela and Mex. [Will.] 

 JyENNiCKE, Neue Exot. Dipt., 87 (maximiliam) . Mex. 

 SCHINER, Novara, 356 (esuriens and mc.ricana), syn., etc. S. A. 

 OSTEN SACKEX, West. Dipt., in (mcxicana) ; Cat., 128, syn. S. Cal. 

 RONDANI, Archiv. per Zool., in, 4, 1865 (iransatlantica) . S. A. 

 WILLISTON, Synop. N. A. Syrph., 137, pi. vi, f. 5 ; Biologia, Dipt, in, 50, 



bibl., etc. Cal., Ariz., Tex., Fla. ; Mexico, several places. 

 GiGLio-Tos, Ditt. del Mess., i, 47, full bibl. Mexico, common. 

 TOWNSEXD, Trans. Amer. Ent. Soc., xxn, 41, notes; Proc. Cal. Acad. Sci., 



iv, 613, notes; Jour. N. Y. Ent. Soc., v, 174, notes. N. M. ; Lower Cal.; 



Tex. 



Porto Rico Roeder. 

 eugenia WILLISTON, Synop. N. A. Syrph., 139, pi. vi, f. 10. Bahamas, Fla., 



Jamaica. 

 - v evecta WALKER, Dipt. Saund., 251. U. S. 



MACQUART, Dipt. Exot., Suppl. rv, 131 (plumata FABR.), note. New- 

 foundland. 

 WILLISTON, Proc. Amer. Phil. Soc., xx, 316 (facialis) ; Synop. N. A. 



Syrph., 136, 137, pi. vi, f. 6 (cvccta, facialis, and var. sangiiinca). New 



England, Middle States, Brit. Possessions, Cal. 



COQUILLETT, Proc. W'ash. Acad. Sci., n, 434, oc. in Alaska (facialis). 

 TOWNSEND, Trans. Amer. Ent. Soc., xxn, 42, notes on varieties, recog- 

 nizing facialis and sanguinea as such. 



CHAGNON, fit. Prelim, les Syrph., 47. Montreal and St. Jean, Quebec. 

 Axton, N. Y. M. and H. ; N. J. Smith Cat.; Sea Cliff, N. Y. Banks; 



White Mts., N. H. Slosson. 

 fasciata MACQUART, Dipt. Exot., n, 2, 22, pi. v, f. 2. Carolina. 



OSTEN SACKEN, West. Dipt., 334, oc. Texas and Manitou, Col. 

 WILLISTON, Synop. N. A. Syrph.. 145, pi. vi, f. 4; Biologia, Dipt., in, 48, 



note; Ent. News, n, 162, larvae. Kans., Col., Tex., Mexico, Carolina; 



Mex.; larvae feed in the tissues of the common cactus of the plains, 



Opuntia missouriciisis. 



SMITH, Canad. Ent., xxin, 24.', larv;t' in prickly pear cactus. 

 Inverness, Fla. Johnson ; N. J. Smith Cat. 

 fax TOWXSEXD, Trans. Amer. Ent. Soc., xxn, 42. Col. 

 flavissima GiGLio-Tos, Boll. R. Univ. Torino, vn, No. 123, 1892; Ditt. del Mess., 



i, 50. Orizaba, Mex. 

 fornax TOWNSEND, Proc. Cal. Acad. Sci., iv, 613. Lower Cal. 



