3/6 CATALOGUE OF NORTH AMERICAN DIPTERA. 



WILLISTON, Synop. N. A. Syrph., 131, def. and table of species, 1886. 



VERRALL, Brit. Flies, vm, 474, 1901. 



CHAGNON, fit. Prelim, les Syrph., 45. 1901. 

 cynops SNOW, Kans. Univ. Quart., I, 37, pi. vii, f. 2. Col. 

 ferruginea FALLEN, see Hammerschmidtia. 



media WILLISTON, Proc. Amer. Phil. Soc., xx, 308; Synop. N. A. Syrph., 132, 

 pi. v, f. 7. Cal. 



CHAGNON, fit. Prelim, les Syrph., 46. St. Hilaire, Quebec. 

 notata OSTEN SACKEN, Bull. Buff. Soc. Nat. Sci., in, 68; Cat., 248, reprinted. 

 White Mts,, N. H. 



WILLISTON, Synop. N. A. Syrph., 132, pi. v, f. 5, 6. Ore., Wash. 



COQUILLETT, Proc. \Vash. Acad. Sci., n, 434, oc. in Alaska. 



CHAGNON, fit. Prelim, les Syrph., 46. Rigaud, Quebec. 



White Alts., N. H. Slosson; Montreal Chagnon. 



vacua OSTEN SACKEN, Bull. Buff. Soc. Nat. Sci., in, 68 (racita, a typographical 

 error) ; Cat., 247, reprinted.- Quebec, Canada. 



BIGOT, Annales, 1884, 537 (cincreoz'itta). Cal. [Will.] 



WILLISTON, Synop. N. A. Syrph., 133. Kern Co., Cal. 



CHAGNON, fit. Prelim, les Syrph., 46. 



JOHNSON, Ent. News, Sept., 1899, 220, oc. at Darby, Pa. 



COPESTYLUM. 



MACQUART, Dipt. Exot., Suppl. i, 124, 1846. 

 WILLISTON, Synop. N. A. Dipt., 161, 1886. 

 limbipennis WILLISTON, Synop. N. A. Syrph., 152; Biologia, Dipt., in, 56 (lim- 



bipcnnc}, female desc. Mex. ; Acapulco and Tehuantepec, Mex. 

 marginatum SAY, Jour. Acad. Sci. Phil., vi, 167; Compl. Works, 11, 360 (Volu- 



cella).Mex. 



MACQUART, Dipt. Exot., Suppl. i, 125, pi. x, f. 16 (flavivcntris). Vene- 

 zuela. 



WILLISTON, Synop. N. A. Syrph., 151, pi. vii, f. i; Biologia, Dipt., in, 

 56, oc. and notes ; Ent. News, n, 162, larval habits. Tex., Ariz., Mont., 

 Cal. ; Guerrero and N. Sonora, Mex. ; the larvae feed in the tissues 

 of the common cactus of the plains, Opuntia missouriensis. 

 TOWNSEND, Psyche, 1898, 267, note. N. M. 



GiGLio-Tos, Ditt. del Mess., 11, 40, pi. i, f. 14, 15 (marginatitm and dis- 

 tinctnm'). Mexico. 



Note. Giglio-Tos believes that both Say and Macquart confused two 

 species as males and females of the same species, 

 var. lentum WILLISTON, Synop. N. A. Syrph., 152. 

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



i, 42. Tehuacan, Mex. 



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

 i, 42. Tehuacan and Meztillan, Mex. 



VOLUCELLA. 



GEOFFROY, Hist. Ins. Env. de Paris, n, 540, 1764. 



ST. FAKGKAU et SERVILLE, Encycl. Meth., x, 786, 1825 (Tcmnoccra and 



Or nidi a) . 



MACQUART, Dipt. Exot., n, 2, 26 (Tcmnoccra), 1842. 

 SCHINER, Fauna Austr., i, 328, i,S<>_>. 

 BIGOT, Bull. Soc. Ent. France, 1882, No. 12 (Atcmnoccra) ; Annales, 1883, 



64, table of species. 



