CATALOGUE OF NORTH AMERICAN DIPTERA. 40 1 



frontosus LOEW, Cent., x, 50. D. C. 



? WALKER, List, in, 558 (Xylota oarus). Trenton Falls, N. Y. [O. S., 

 with a doubt.] 



WILLISTON, Synop. N. A. Syrph., 221, pi. x, f. 8. D. C., Pa. 



CHAGNON, fit. Prelim. Ics Syrph., 65. Rigaud and Montreal, Quebec. 



N. J. Smith Cat. 



inarmatus HUNTER, Canad. Ent., xxix, 142. Vollmer, Idaho, 

 morrisoni BIGOT, see Pocota grandis. 

 parvus WILLISTON, Synop. N. A. Syrph., 222. Col. 



pulcher WILLISTON, Canad. Ent., xiv, 79; Synop. N. A. Syrph., 223, pi. x, f. 9. 

 Ore., Wash. 



BIGOT, Annales, 1883, 352 (Calliprobola ccrca). Wash. [Will.] 

 rileyi WILLTSTON, Synop. N. A. Syrph., 222. N. C. 



N. J. Smith Cat. 

 sorosis WILLISTOX, Synop. N. A. Syrph., 223, 297. Ga. 



? WALKER, List, in, 557 (Xylota <zpalius). Ga. [Will., with a doubt.] 



N. J. Smith Cat. 

 verbosus HARRIS, of WALKER, see Criorhina. 



POCOTA. 



ST. FARGEAU et SERVILLE, Encycl. Meth., x, 518. 1825. 



SCHINER, Verh. Zool.-Bot. Ges., vn, 440; Fauna Austr., i, 351 (both Plo- 



cota~). 



EGGER, Verh. Zool.-Bot. Ges., vm, 711 (Dasymyia). 

 WILLISTON, Canad. Ent., 1882, 78 (Hadromyia) ; Synop. N. A. Syrph., 



220, 1886. 



VERRALL, Brit. Flies, vm, 586, 1901. 



bomboides HUNTER, Canad. Ent., xxix, 141. Cal. 



grandis WILLISTON, Canad. Ent., xiv, 79, female (Hadromyia) ; Synop. N. A. 



Syrph., 221, pi. x, f. /. Wash. 



BIGOT, Annales, 1883, 355 (Brachy palpus morrisoni) .Wash. [Will] 

 RILEV and HOWARD, Ins. Life, iv, 86, notes on the male. Vancouver Id. 



CRIOPRORA. 



OSTEN SACKEN, Cat., 251, 1878. 



BIGOT, Annales, 1883, 356 (Ronialcosyrplnts'}. 



WILLISTON, Synop. N. A. Syrph., 217, 1886, def. and table of species; 



Biologia, Dipt., in, 72, 1891, syn. 

 alopex OSTEN SACKEN, West. Dipt., 338 (Pocota) ; Cat., 251, note. Marin Co., 



Cal. 

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



Mess., n, 25, pi. n, f. 2. Angang, Mex. 

 cyanella OSTEN SACKEN, West. Dipt., 339 (Pocota) ; Cat., 251, notes. Santa 



Barbara, Cal. 



WILLISTON, Synop. N. A. Syrph., 218, pi. x, f. 6. Cal. 

 cyanogaster LOEW, Cent., x, 51 (Brachypalpiis). Pa. 

 WILLISTON, Synop. N. A. Syrph., 218. Col. 

 Montreal Chagnon. 

 femorata WILLISTON, Proc. Amer. Phil. Soc., xx, 329; Synop. N. A. Syrph., 



219, pi. x, f. 5. Ore., Wash. 

 villosa BIGOT, Bull. Soc. Ent. France, 1882 (Romaleosyrphits) ; Annales, 1883, 



356 (id.). Mex. 



WILLISTON, Biologia, Dipt., in, 72, oc. in Mex., and gen. ref. 

 26 



