318 CATALOGUE OF NORTH AMERICAN DIPTERA. 



quadrangularis WHEELER and MELANDER, Biologia, Dipt., i, 374. Tabasco, Mex. 



MELANDER, Mon. Empid., i, 253, redesc. 

 rufus LOEW, Cent., i, 24. N. Y., Chicago. 



MELANDER, Mon. Empid., i, 253. Ohio, Ind., Wis. 

 N. J. Smith Cat. 

 simplex WALKER, Dipt. Saund., 165, pi. v, f. 7. U. S. 



VAN DER WULP, Tijdschr. v. Ent, x, 139, pi. in, f. 18-21 (punctipennis}. 



Wis. 



LOEW, Zeitsch. f. Ges. Naturwiss., xxxvn, 115, syn. 

 MELANDER, Mon. Empid., i, 254, f. 86. Mass, and Ontario to Wis. and 



111. 



N. J. Smith Cat. ; Charlotte Harbor, Fla., Johnson. 



thoracicus SAY, Jour. Acad. Sci. Phil., in, 76; Compl. Works, 11, 68 (Hybos}. 

 Pa. 



WlEDEMANN, AuSS. Z\V., I, 538 (id.). 



MACQUART, Dipt Exot, i, 2, 156, pi. xni, f. i (id.). Pa. 

 MELANDER, Mon. Empid., i, 254, f. 84. Pa. to Kans. 

 N. J. Smith Cat. 



SYNDYAS. 



LOE\V, Dipterenfauna Siidafrika's, 260, 1860. 



OSTEN SACKEN, Cat., 240, 1878. 



MELANDER, Mon. Empii, i, 254, 1902, def. and table. 

 dorsalis LOEW, Cent., i, 26. N. Y. 



MELANDER, Mon. Empid., i, 254. 111. 

 polita LOEW, Cent., i, 27. Carolina. 



MELANDER, Mon. Empid., i, 254, f. 83. Mass., Ga., Ala., La., Kans., Ohio, 

 Mich. 



HYBOS. 



MEIGEN, Illig. Mag., 11, 269, 1803 ; Syst. Beschr., 11, 246, 1820. 



SCHINER, Fauna Austr., i, 77, 1862. 



OSTEN SACKEN, Cat., 240, note on Walker's types. 



COQUILLETT, Revis. Empid., 437, 1895, table of species; ibid. (Euhybus). 

 [Wh. and Mel.] 



WHEELER and MELANDER, Biologia, Dipt., i, 372, 1902, table of Mexican 

 species. 



MELANDER, Mon. Empid., i, 245, 1902, def. and table of species. 

 dimidiata BELLARDI, see sequens. < 



dimidiata LOEW, see clectus. 

 duplex WALKER, see triples. 



electus MELANDER, Mon. Empid., i, 245, change of name ; 247, desc. Tifton, Ga. ; 

 New Bedford, Mass. 



LOEW, Wien. Ent. Monatsch., v, 36 {dimidiata, preoc.). Cuba. 



WILLISTON, Trans. Ent. Soc. Lond., 1896, 307, pi. xi, f. 83 (dimidiata 



Lw.). St. Vincent, W. I. 

 mellipes WHEELER and MELANDER, Biologia, Dipt., i, 373. Guerrero, Mex. 



MELANDER, Mon. Empid., i, 247, f. 78, redesc. 

 purpureus WALKER, see triplex. 

 reversus WALKER, List, in, 487. Trenton Falls, N. Y. 



MELANDER, Mon. Empid., i, 248. Jamesburg, N. J. 

 sequens MELANDER, Mon. Empid., i, 245, change of name ; 249, desc. 



BELLARDI, Saggio, n, 97 (dimidiata, preoc.). Mex. 



