CATALOGUE OF NORTH AMERICAN DIPTERA. 373 



WILLISTON, Synop. N. A. Syrph., 105, pi. iv, f. 16. New Eng., Wash., 

 Col., N. M. 



RILEV, Rept. Dept. Agr., 1889, 351, mentions the larva; feeding on grain 

 Aphis, Siplioiitipliorn tn/ciKC. 



CHAGNON, Et. Prelim, les Syrph., 41. Quebec, common. 



N. A., in nearly all local lists. 

 dubia BIGOT, Annales, 1884, 101. Cal. 



\\'ILLISTON, Synop. N. A. Syrph., 108. quotes orig. desc. 

 forreri GiGLio-Tos, Ditt. del Mess., n, 32. Solco and Cuernavaca, Mex. 



\\'ILLISTON, Biologia, Dipt., in, 23 (" Sphccrofhoria ? "). Durango, 



Mex. 



fulvicauda BIGOT, Annales, 1884, 104. Mex. 

 hieroglyphica MEIGEN, Syst. Beschr., in, 327 (Syrphus). Europe. 



WALKER, List, in, 593, oc. in Nova Scotia. 

 infumata THOMSON, Eugen. Resa, 501. Cal. 



WILLISTOX, Synop. N. A. Syrph., 109, quotes orig. desc. 

 melanosa WILLISTON, Synop. N. A. Syrph., 106. Cal. 



Hudsonian Zone, N. M. Cockerell. 

 menthastri LINNE, Fauna Suec., 2d ed., no. 1819 (Musca). Europe. 



WALKER, List, in, 593, oc. in Canada and New York. 

 micrura OSTEN SACKEN, West. Dipt., 330. Sonoma Co., etc., Cal. 



WILLISTON, Synop. N. A. Syrph., 107; Biologia, Dipt., in, 21, notes. 

 Cal. ; Guerrero, Mex. 



GiGLio-Tos, Ditt. del Mess., 11, 33. Orizaba. 

 nasuta BIGOT, Annales, 1884, 103, see Baccha. 

 nasuta BIGOT, Annales, 1888, 253. Mex. 

 pachypyga BIGOT, Annales, 1884, 104. Mex. 

 picta MEIGEN, of Holmgren, Ins. Nordgrcenl., 100, see scriptci. 

 picticauda BIGOT, Annales, 1884, 102. Mex. 



WILLISTON, Biologia, Dipt., in, 21. Guerrero and Tabasco, Mex. 



GiGLio-Tos, Ditt. del Mess., 11, 34, notes. Mexico, several places. 

 pyrrhina BIGOT, Annales, 1884, 101. Cal. 



WILLISTON, Synop. N. A. Syrph., 108, quotes orig. desc. 

 rostrata BIGOT, Annales, 1884, 102. Mex. 



scripta LINNE, Syst. Nat., loth ed., 594 (Muscat ; Fauna Suec., 2d ed., 449 

 (id.). Europe. 



SCOPOLI, Ent. Carn., 965 (Conops gciiiinatus). 



FABRICIUS, Syst. Ent., 772 (Syrplnis) ; Spec. Ins., n, 434 (id.) ; Ent. Syst.. 

 iv, 308 (id.) ; Syst. Antl., 252 (Scccva). 



FALLEN, Syrphici, 48 (Sc(ci'a). 



MEIGEN, Syst. Beschr., in, 324 (Syrplnis'). 



MACQUART, Dipt, du Nord de la France, 1827, 218; Hist. Nat. Dipt., i, 



551. 



ZETTERSTEDT, Ins. Lapp., 605; Dipt. Scand., n, 766 and vin, 3157 (all 



Scava). 



WALKER, List, in, 592, oc. in Nova Scotia. 

 SCHINER, Verb. Zool.-Bot. Ges., vii, 369 (Melithreptus) ; Fauna Austr., 



i, 316 (id.). 



RONDANI, Dipt. Ital. Prod., n, 112. 



VAN DER WULP, Tijdschr. v. Ent., xxvi, 8, oc. at Quebec ( Mclithrcptus} . 

 KOWARZ, Wien. Ent. Zeit., iv, 133, varieties, etc. 

 WILLISTON, Synop. N. A. Syrph., 107, transl. Schiner; not seen. 

 VERRALL, Brit. Flies, vin, 432. 

 var. strigata STAGER, Groenl. Antl., 362. Greenland. 



