286 CATALOGUE OF NORTH AMERICAN DIPTERA. 



purpuratus Aldrich, Biologia, Dipt., i, 358. — Morelos and Guerrero, Mex. 

 purpureus Aldrich, Biologia, Dipt., i, 362. — Vera Cruz, Guerrero and Tabasco, 



Mex. 

 radians Macquart, Hist. Nat. Dipt., i, 450; Dipt. Exot., 11, 2, 121. — N. A. (Near 

 comatus, but cannot be recognized.) 



LoEW, Mon. N. A. Dipt., 11, 240, 298, not recognized. 

 scaber Loew, Neue Beitr., viii, 85 ; Mon. N. A. Dipt., 11, 250. — Pa. 



N. J.— Smith Cat. 

 scobinator Loew, Neue Beitr., viii, 91 ; Mon. N. A. Dipt., 11, 268. — N. Y., Ill, 



N. J.— Smith Cat. ; Axton, N. Y.— M. & H. 

 similis Aldrich, Biologia, Dipt., i, 359. — Guerrero, Yucatan, etc., Mex. ; Brazil. 

 sipho Say, Jour. Acad. Sci. Phil., iii, 85; Compl. Works, 11, 75 {Dolichopus). 

 U. S. 



Wiedemann, Auss. Zw., ii, 218. — Pa. 



Walker, List, iii, 646 (gemmifer) . — Trenton Falls, N. Y. [L\v.] 



Loew, Neue Beitr., viii, 83; Mon. N. A. Dipt., n, 248.— Pa., Ga., Va., 111. 



Common throughout the eastern and middle part of the United States ; 

 Montreal — Chagnon. 

 Note. — There is a reference to sipho by Macquart, in Dipt. Exot., 11, 2, 



179, with fig. I, pi. XXI ; Loew, Mon., 241, says it refers to jucundus, while 



Schiner, Novara, 210, says it means dux Wied. 

 solidus Walker, Trans. Ent. Soc, v, 286. — Mex. (Unrecognizable.) 

 suavium Walker, List, iii, 648. — Jamaica. Porto Rico — Roeder. 

 tibialis Wiedemann, Auss. Zw., 11, 222.- — Antigua. 

 tonsus Aldrich, Biologia, Dipt., i, 364. — Frontera, Mex. 

 triseriatus Aldrich, Biologia, Dipt., i, 356. — Cuernavaca and Teapa, Mex. 

 xingulivena Walker, Trans. Ent. Soc, iv, 249.— U. S. (Unrecognizable.) 

 virgo Wiedemann, Auss. Zw., ii, 224. — N. Y. 



Schiner, Novara, 215, oc. in S. A. 



Loew, Mon. N. A. Dipt., 11, 240, 295. 



AGONOSOMA. 



Guerin-Meneville, Voyage . . . sur la Corvette. Zoologie, Tome 11, 

 partie 2me, p. 293. Paris, 1838 (title-page gives date 1830). On the 

 plates the genus is called Chrysosoma. 

 Fallen, Dolichopodes, 23, 1823 (Leptopus, preoc). 

 Meigen, Syst. Beschr., iv, 35, 1824 (Psilopus, preoc). 

 Zeller, Isis 1842, 831, changes Psilopus to Sciapus. 

 ? Bigot, Annales Soc. ent. France, 1859, 215 (Margaritostylus, in part). 

 Rondani, Dipt. Ital. Prodromus, iv, 11, 1861, changes Psilopus to Psilo- 



podius. 

 Schiner, Fauna Austr., i, 180, 1862 (Psilopus Meig.). 

 Loew, Mon. N. A. Dipt., 11, 229 (id.), 1864. 



Aldrich, Kans. Univ. Quart., 11, 47, 1893 (Gnamptopsilopus) ; Biologia, 

 Dipt., I, 364, 1901, table of species (id.) ; Canad. Ent., 1904, 246, nomen- 

 clature. 

 CoQUiLLETT, Jour. N. Y. Ent. Soc, x, 140, 1902, syn. of Gnamptopsilopus. 

 Bezzi, Zeitsch. f. Syst. Hym. u. Dipterologie, 1902, 191, adopts Sciapus. 

 bicolor Loew, see unifasciatus. 

 castum Loew, Cent., vi, 84 (Psilopus). — Cuba. 



ciliipennis Aldrich, Biologia, Dipt., i, 366, pi. vi, f. 24 (Gnamptopsilopus) . — 

 Omilteme. Mex. 



