382 CATALOGUE OF NORTH AMERICAN DIPTERA. 



viridula Bigot, see Phalacromyia vaga. 



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

 I, 61. — Orizaba, Mex. 



MEGAMETOPON. 

 GiGLio-Tos, Boll. R. Univ. Torino, vi, No. 108, 5, fig., Sept., 1891 ; Ditt. 



del Mess., i, 43, 1892. 

 WiLLiSTON, Biologia, Dipt, iii, 55, pi. 11, f. i (Dec, 1891) (Ophromyia). 

 nasicum Williston, Biologia, Dipt., iii, 55 and 79, pi. 11, f. 1 {Of^hromyia). — 

 Guerrero, Mex. 

 GiGLio-Tos, Ditt. del Mess., i, 44, pi. i, f. 12.— Guerrero, Mex. 



PHALACROMYIA. 



RoNDANi, Esame . . . Ins. Ditt. Brasil, Torino, 1848. 



Thomson, Eugen. Resa, 593, 1868 (Glaurotricha). [Will] 



Bigot, Annales, 1883, 64 and 81, table of species. 



Williston, Synop. N. A. Syrph., 297, 1886, note; Biologia, Dipt., in, 40, 

 1891, table of Cent. Amer. species. 

 bellula Williston, Biologia, Dipt., iii, 42. — N. Yucatan, Mex. 

 melanorhina Bigot, see Volucella tristis. 

 pica ScHXNER, Novara, 355, pi. iv, f. 6. — Colombia. 



? Williston, Biologia, Dipt., iii, 41, doubtfully i '-iiit. from Misantla, Mex. 

 pulchra Williston, Biologia, Dipt., iii, 41. — Costa Rica, 

 vaga Wiedemann, Auss. Zweifl., 11, 205 (Volucello . — Brazil. 



Schiner, Novara, 355, note. 



Bigot, Annales, 1875, 481 {Volucella viridula) ; 1883, 62, syn.— Mex. 



Williston, Biologia, Dipt., in, 42, oc. in Mex. 



Giglio-Tos, Ditt. del Mess., i, 56 {Volucella). — Guerrero and Orizaba, 

 Mex. 

 vicina Bigot, Annales, 1883, 86. — Mex. 

 virescens Williston, Biologia, Dipt., in, 42. — Guatemala. 



volucelloides Bigot, Annales, 1884, 548 {Glaurotricha), from Mexico, should 

 perhaps be placed here, as Williston, Biologia, Dipt., in, 43, says that 

 Glaurotricha is hardly distinct from Phalacromyia. 



SERICOMYIA. 



Meigen, Illig. Mag., 11, 274, 1803; Syst. Beschr., in, 342, 1822. 



Schiner, Fauna Austr., i, 330, 1862. 



Williston, Synop. N. A. Syrph., 153, 1886, def. and table of species. 



Verrall, Brit. Flies, viii, 634, 1901. 



Chagnon, fit. Prelim, les Syrph., 48, 1901. 

 bifasciata Williston, Synop. N. A. Syrph., 154. — N. H. 



Pa. — Johnson; Axton, N. Y. — M. and H. 

 chalcopyga Loew, Cent., iii, 20. — Sitka. 



Williston, Synop. N. A. Syrph., 156, pi. vii, f. 2. — Wash., Ore. 



Coquillett, Proc. Wash. Acad. Sci., 11, 435, oc. in Alaska and White 

 Mts., N. H. 



Axton, N. Y.— M. and H. ; N. Idaho— J. M. A. 

 chrysotoxoides Macquart, Dipt. Exot., n, 2, 19, pi. ni, f. 3 bis; Suppl. n, 58, 

 female {limbip crmis) . — Philadelphia; Nova Scotia. [O. S.] 



Walker, List, in, 596 {filia). — Martin Falls and Nova Scotia. [O. S.] 



Osten Sacken, Cat., 130, syn. 



Williston, Synop. N. A. Syrph., 157, pi. vii, f. 4. — Atlantic States and 

 Canada. 



