CATALOGUE OF NORTH AMERICAN DIPTERA. 345 



Wiedemann, Auss. Zweifl., ii, 79, 1830 {Ccratophya). 



Macquart, Hist. Nat. Dipt., i, 486, 1834 (Chymophila). [O. S.] 



Newman, Ent. Mag., v, 372, 1838 {Dimeraspis) . 



Walker, List, iv, 1157, 1849 (Mcsophila) ; Dipt. Saund., 217, 1856 (Ub- 



ristes). 

 ScHiNER, Fauna Austr., i, 249, 1862. 

 WiLLiSTON, Synop. N. A. Syrph., 3, 1886, def. and table of species; Biolo- 



gia, Dipt., Ill, 2, 1891, syn., etc. 

 GiGLio-Tos, Boll. Mus. ZooL, vi, No. 108, 4, 1891 ; Ditt. del Mess., i, 38, 



1892 (both OmcgasyrpliHs). [Will.] 

 Wheeler, Psyche, July, 1901, larva in nest of Pscudomyrmcx in Mex. 

 Verrall, Brit. Flies, viii, 658, 1901. 



Chagnon, fit. Prelim, les Syrph., 13, 190, table of Quebec species, 1901. 

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



I, 27- — Tuxpango, Mex. 



aurifex Wiedemann, Auss. Zweifl., 11, 85.— Brazil. 



Macquart, Hist. Nat. Dipt., i, 486 (Chymophila splcndcns) ; Dipt. Exot., 



II, 2, ID (id.); II, 3, Ti (Aphritis aurifex). — Philadelphia; Para. 

 Walker, Ins. Saund., 216 (trochilus). — Mex. [Will.] 



Osten Sacken, Bull, feuflf. Soc. Nat. Hist, Nov., 1875, on type of Chy- 

 mophila splcndens; quoted by Williston, Synops,, 12. 

 Williston, Synop. N. A. Syrph., 9, 10; Biologia, Dipt., iii, 2, pi. i, f. 2.— 

 Mex. ; Guerrero and Tehuantepec. 

 aurulentus Fabricius, Syst. Antl, 185 (Mulio). — Carolina. 

 Wiedemann, Auss. Zweifl., 11, 86. 

 Macquart, Dipt. Exot, 11, 2, 12, pi. 11, f. i (Aphritis); Suppl. 11, 2, 38 



(Aphritis crassitarsis) .■ — Carolina; Rio Negro. 

 F. Lynch Arribalzaga, Dipt. Argent, 126 (crassitarsis). — Argentina. 

 Williston, Synop. N. A. Syrph., 11, transl. Wied. and Macq. 

 Giglio-Tos, Ditt. del Mess., i, 35, oc. in Orizaba. 

 Johnson, Ent. News, xii, 94, oc. in Pa. 

 baliopterus Loew, Cent., x, 56. — ^Texas. 



Williston, Synop. N. A. Syrph., 5, pi. i, f. 4. 

 Charlotte Harbor, F"la. — ^Johnson (Omegasyrphiis). 



Williston, Biologia, Dipt., iii, 3, oc. and note. — Texas; Guerrero and 

 N. Yucatan, Mex. 

 bombiformis Townsend, see megalogaster. 

 chrysopyga Giglio-Tos, Boll. R. Univ. Torino, vii, No. 123, 1892 (Ubristes) ; 



Ditt del Mess., i, 2)7 (id.).— Orizaba, Mex. 

 coarctatus Loew, Cent., v, 47. — D. C. 



Williston, Synop. N. A. Syrph., 6, transl. orig. desc. 

 Giglio-Tos, Boll. R. Univ. Torino, vii. No. 118, 1892; Ditt del Mess., i, 

 39, pi. I, f. II (both Omegasyrphiis, type of new genus). — Tuxpango, 

 Mex. 

 Orlando, Fla. — Johnson (Omegasyrphiis). 

 cothurnatus Bigot, see tristis. 



falcatus Williston, Synop. N. A. Syrph., 9; Biologia, Dipt, iii, 3, notes. — 

 Guerrero and Tehuantepec, Mex. 

 GiGLio-Tos, Ditt. del Mess., i, 36. — Tehuacan. Mex. 

 fulgens Wiedem-ann, Auss. Zweifl., 11, 82. — Ga. 



Gray, in Griffith's An. Kingd., Ins., 11, pi. cxxv, f. 2 (euglossoides) . 

 Macquart, Dipt Exot., Suppl., i, 122 (Aphritis). — Guiana, Fla. 

 Williston, Synop. N. A. Syrph., 11, orig. desc, etc. 



