CATALOGUE OF NORTH AMERICAN DIPTERA. 39 1 



Macquart, Hist. Nat. Dipt., i, 500 (Mallota milcsiformis) ; Dipt. Exot, 



11, 2, 60, pi. X, f. 7 (Plagioccra crucigcr). — Cuba. 

 WiLLiSTON, Synop. N. A. Syrph., 180, pi. viii, f. i (Ptcroplila crucigcra) ; 

 Biologia, Dipt., in, 66 (id.). — Ga., Fla., Tex.; Vera Cruz aud Tabasco, 

 Mex. 

 cinctus Drury, Ins., i, 109, pi. xlv, f. 6 (Musca). — Jamaica, San Domingo. 



Fabricius, Syst. Ent., 763 (Syrplms pinguis) ; Ent. Syst., iv, 282 (id.) ; 



Syst. Antl., 233 (pinguis). — America. 

 Wiedemann, Auss. Zweifl., 11, 193 (pinguis) .—Jamaica. 

 Walker, List, in, 564 (Milesia miia). — Jamaica. 

 Macquart, Dipt. Exot., Suppl. v, 94 {pinguis).— Jamaica. 

 WiLLiSTON, Synop. N. A. Syrph., 182. — San Domingo. 

 TowNSEND, Trans. Amer. Ent. Soc, xxii, 50. — Jamaica. 

 Porto Rico — Roeder; Jamaica — Johnson. 

 decorus Loew, Cent., vi, 50 (Ptcroptila). — Cuba. 



WiLLiSTON, Synop. N. A. Syrph., 181. — Cuba, 

 opulentus Bigot, Annales, 1883, 336 (Eristalis). — Cuba. 



pratorum Fabricius, Syst. Ent, 765 (Syrphiis) ; Ent. Syst., iv, 286 (id.) ; Syst. 

 Antl., 236 (Eristalis). — W. I. 

 Wiedemann, Auss. Zweifl., 11, 166 (Eristalis). — S. A. 

 Roeder, Stett. Ent. Zeit., 1885, oc. in Porto Rico. 



WiLLiSTON, Trans. Ent. Soc. Lond., 1896, 346, oc. and bibliog. — St. Vin- 

 cent, W. I. 

 ruficrus Wiedemann, Auss. Zweifl., n, 105 (Milesia). — Cuba. 



WiLLiSTON, Synop. N. A. Syrph., 181 (Ptcroptila). — Cuba, 

 zonatus Loew, Cent., vi, 60 (Ptcroptila). — Mex. 



WiLLiSTON, Synop. N. A. Syrph., 182, transl. orig. desc. (id.) ; Biologia, 

 Dipt., in, 67, pt. desc. — Mex. ; Guerrero, Mex. 



TROPIDIA. 



Meigen, Syst. Beschr., in, 346, 1822. 



ScHiNER, Fauna Austr., i, 348, 1862. 



WiLLiSTON, Synop. N. A. Syrph., 206, def. and table of species, 1886. 



Hunter, Ent. News, vii, 215, 1896, table of species. 



Verrall, Brit. Flies, viii, 567, 1901. 



Chagnon, fit. Prelim, les Syrph., 60, 1901. 

 albistylum Macquart, Dipt. Exot., Suppl. 11, 60, pi. 11, f. lo.^N. A. 



WiLLiSTON, Synop. N. A. Syrph., 207, probably not distinct from quad- 

 rata; Ent. News, in, 146, recognizes as distinct. 



N. J. — Smith Cat. ; Fla., several places — Johnson. 

 calcarata Williston, Synop. N. A. Syrph., 208. — Mich. 



N. J.— Smith Cat. 

 incana Townsend, Trans. Amer. Ent. Soc, xxii, 52. — Ft. Collins, Col. 

 mamillata Loew, Cent., i, 68. — 111. 



Williston, Synop. N. A. Syrph., 208, transl. and note. 



Hunter, Canad. Ent., xxix, 144, oc. in Nebr. 



HiNE, Ohio Nat., 11, 229, oc. in Baldwin, Kans. 

 montana Hunter, Ent. News, vii, 215 (nigricornis; name changed, p. 320).^ 



Moscow, Idaho. See also further notes, Canad. Ent., xxix, 143. 

 quadrata Say, Amer. Entomology, i, pi. viii, Compl. Works, i, 14 (Xylota).^ 

 Pa. 



Wiedemann, Auss. Zweifl., 11, loi, transl. of Say. 



Macquart, Dipt. Exot., 11, 2, 72, gen. ref. 



