CATALOGUE OF NORTH AMERICAN DIPTERA. 359 



WILLISTON, Synop. N. A. Syrph., 55, pi. in, f. 13 (id.). Wash., Labrador. 



VERRALL, Brit. Flies, vm, 300, figs. 



Montreal Chagnon; White Mts., N. H. Slosson (both ocymi). 

 ocymi FABRICIUS, see granditarsus. 



rosarum FABRICIUS, Mantissa Ins., n, 341 (Syrphus) ; Ent. Syst., iv, 307 (id.) ; 

 Syst. Antl., 251 (Scceva). Europe. 



FALLEN, Syrphidi, 47 (Scceva). 



MEIGEN, Syst. Beschr., in, 338 (Syrphus). 



ZETTERSTEDT, Dipt. Scand., n, 755 and vm, 3152 (Scceva). 



SCHINER, Verh. Zool.-Bot. Ges., vn, 357; Fauna Austr., I, 298. 



OSTEN SACKEN, Cat., 122, oc. in N. A. Mass, and White Mts., N. H. 



WILLISTON, Synop. N. A. Syrph., 55, desc. quoted. 



VERRALL, Brit. Flies, vm, 392, figs. 



PLATYCHIRUS. 



ST. FARGEAU et SERVILLE, Encycl. Meth., x, 513, 1825 (Platychcirus). 



SCHINER, Fauna Austr., i, 292, 1862. 



WILLISTON, Synop. N. A. Syrph., 56, def. and table of species, 1886. 



VERRALL, Brit. Flies, vm, 262, 1901. 



CHAGNON, fit. Prelim, les Syrph., 28, 1901. 



aeratus COQUILLETT, Proc. W T ash. Acad. Sci., n, 430. Muir Inlet, Alaska, 

 albimanus FABRICIUS, Spec. Ins., n, 434 (Syrph us) ; Syst. Antl., 253 (Scceva). 

 Europe. 



MEIGEN, Syst. Beschr., HI, 333 (Syrphus). 



WALKER, Ins. Brit., i, 294. 



SCHINER, Fauna Austr., i, 294. 



BIGOT, Annales, 1884, 75 (ciliatus). Cal. 



WILLISTON, Synop. N. A. Syrph., 59 (ciliatus). Col. 



COQUILLETT, Proc. Wash. Acad. Sci., n, 430, oc. in Alaska. 



VERRALL, Brit. Flies, vm, 280, 675, figs., desc. and syn. of Bigot, from his 

 type. England. 



White Mts., N. H. Slosson (ciliatus). 

 chaetopodus WILLISTON, Synop. N. A. Syrph., 59. Wash. 



SNOW, Kans. Univ. Quart., HI, 231, note. Col. 

 ciliatus BIGOT, see albimanus. 

 "* hyperboreus ST.^GER, Grcenl. Antl., 362 (Syrphus). Greenland. 



HOLMGREN, Ins. NordgrcenL, 100 (Scceva). Greenland. 



WILLISTON, Synop. N. A. Syrph., 57, pi. in, f. 12. N. Y., Col., Pa., White 

 Mts., N. H." 



SNOW, Kans. Univ. Quart., in, 231, notes. Col. 



CHAGNON, fit. Prelim, les Syrph., 29. Montreal. 



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

 naso W T ALKER, List, in, 587 (Syrphus). Martin Falls, Canada. 



OSTEN SACKEN, Cat., 244, note on type and gen. ref. 

 pacilus WALKER, Dipt. Saund., 240 (Syrphus). 



OSTEN SACKEN, Cat., 244, note on type and gen. ref. 

 palmulosus SNOW, Kans. Univ. Quart., in, 231. Col. 

 peltatus MEIGEN, Syst. Beschr., in, 334 (Syrphus) .Europe. 



FALLEN, Syrphidi, 46 (Scceva albimana). 



ZETTERSTEDT, Dipt. Scand., n, 747; vm, 4145 (both Scceva). 



ST^EGER, Kroyer's Tidskr., iv, 320. 



SCHINER, Fauna Austr., i, 295. 



OSTEN SACKEN, Cat., 122, oc. in X. A. Alaska and West. N. Y. 



