CATALOGUE OF NORTH AMERICAN DIPTERA. 359 



WiLLiSTON, Synop. N. A. Syrph., 55, pi. iii, f. 13 (id.)- — Wash., Labrador. 



Verrall, Brit. Flies, viii, 300, figs. 



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

 ocytni Fabricius, see granditarsus. 



rosanim Fabricius, Mantissa Ins., 11, 341 (Syrphiis) ; Ent. Syst., iv, 307 (id.) ; 

 Syst. Antl., 251 (Sccsva) .—'Europe. 



Fallen, Syrphidi, 47 (Sccsva). 



Meigen, Syst. Beschr., iii, 338 (Syrphus). 



Zetterstedt, Dipt. Scand., 11, 755 and viii, 3152 (Scccva). 



Schiner, Verb. Zool.-Bot. Ges., vii, 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, viii, 392, figs. 



PLATYCHIRUS. 



St. Farge.\u et Serville, Encycl. Metli., 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, viii, 262, 1901. 



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

 aeratus Coquillett, Proc. Wash. Acad. Sci., 11, 430. — IMuir Inlet, Alaska. 

 albimanus Fabricius, Spec. Ins., 11, 434 (Syrphus) ; Syst. Antl., 253 (Scccva). — 

 Europe. 



Meigen, Syst. Beschr., in, s;^^ (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., 11, 430, oc. in Alaska. 



Verrall, Brit. Flies, viii, 280, 675, figs., desc. and syn. of Bigot, from his 

 type. — England. 



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

 chsetopodus Willlston, Synop. N. A. Syrph., 59. — Wash. 



Snow, Kans. Univ. Quart., iii, 231, note. — Col. 

 ciliatus Bigot, see albimanus. 

 hyperboreus St,eger, Groenl. 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., ni, 231, notes. — Col. 



Chagnon, fit. Prelim, les Syrph., 29. — Montreal. 



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

 naso Walker, List, in, 587 (Syrphus). — Martin Falls, Canada. 



Osten Sacken, Cat, 244, note on type and gen. ref. 

 pacilus Walker, Dipt. Saund., 240 (Syrphus). — N. A. 



O.sten 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 (Scccva albimana) . 



Zetterstedt, Dipt. Scand., n, 747; viii, 4145 (both Scccva). 



Stager, Kroyer's Tidskr., iv, 320. 



Schiner, Fauna Austr., i, 295. 



Osten Sacken, Cat., 122, oc. in N. A. — Alaska and West. N. Y. 



