CATALOGUE OF NORTH AMERICAN DIPTERA. 35 I 



GLAUROTRICHA. 



Thomson, Eugen. Resa, 493, 1868. 

 Bigot, Annales, 1883, 250. 



WiLLiSTON, Synop. N. A. Syrph., 301, note, 1886. 

 volucelloides Bigot, Annales, 1884, 548. — Mex. 



WiLLiSTON, Synop. N. A. Syrph., 301, note. 



PARAGUS. 



Latreille, Diet. D'Hist. Nat., xxiv, 1804; Hist. Nat. Crust, et Ins., xiv, 

 358, 1804. 



Meigen, Syst. Beschr., in, 176, 1822. 



ScHiNER, Fauna Austr., i, 256, 1862. 



WiLLiSTON, Synop. N. A. Syrph., 17, 1886, def. and table of species. 



Verrall, Brit. Flies, viii, 149, 1901. 



Chagnon, fit. Prelim, les Syrph., 21, 1901. 

 angustifrons Loew, Cent., iv, 64. — Va. 



WiLLiSTON, Synop. N. A. Syrph., 17, transl. desc. 



N. J.— Smith Cat.; Montreal— Chagnon ; Sea Cliff, N. Y.— Banks. 

 bicolor Fabricius, Ent. Syst., iv, 297 (Syrphtis) ; Syst. Antl, 186 (Mulio). — 

 Europe. 



Latreille, Diet. d'Hist. Nat., xxiv, 194. 



Meigen, Syst. Beschr., in, 178-180 (arcuafus, bicolor, tceniatus, and tcsta- 

 ceus). 



Macquart, Hist. Nat. Dipt, i, 565. 



Zetterstedt, Dipt. Scand., 11, 849-852 (bicolor, punctnlatits, and ruii- 

 cauda). 



ScHiNER, Fauna Austr., i, 259; Verh. Zool.-Bot. Ges., vii, 301. 



Osten Sacken, Catalogue, 120, oc. in N. A. 



WiLLiSTON, Synop. N. A. Syrph., 18, pi. i, f. 7, 9. — U. S. and Europe ; 

 common and variable. 



Townsend, Psyche, Nov., 1897, oc. in N. M., and notes on varieties. 



Verrall, Brit. Flies, viii, 152. 



Chagnon, fit. Prelim, les Syrph., 21. — Quebec. 

 dimidiatus Loew, Cent., iv, 63. — D. C. 



WiLLiSTON, Synop. N. A. Syrph., 20, transl. desc. ; Biologia, Dipt., iii, 5, 

 oc. and notes ; perhaps not distinct from tibialis. — Mexico, several 

 places. 

 tibialis Fallen, Syrphidi, 60 (Pipiza). — Europe. 



Meigen, Syst. Beschr., iii, 182-184 (hcemorrhous, cencus, obscurus, tibi- 

 alis, and femoratiis) . 



Zetterstedt, Dipt. Scand., 11, 852-854 (tibialis, trianguliferus, and ceneiis). 



ScHiNER, Fauna Austr., i, 257, desc. and European bibliography. 



Bigot, Annales, 1884, 540 (aiiricaudatiis) . — Cal. 



WiLLiSTON, Synop. N. A. Syrph., 19, bibl., etc. — Europe and N. A. ; com- 

 mon and variable. 



TowNSEND, Psj'che, Nov. 1897, 140; Dec. 1897, 147, notes on varieties, 

 etc.— N. M. 



Verrall, Brit. Flies, viii, 150. 



CHILOSIA. 



Meigen, Syst. Beschr., iii, 296, 1822. 

 ScHiNER, Fauna Austr., i, 273, 1862. 



WiLLiSTON, Synop. N. A. Syrph., 38, 1886, table of species; Biologia, in, 

 8, 1891, table of Central Am. spp. 



