238 CATALOGUE OF NORTH AMERICAN DIPTERA. 



RILEY, PACKARD and THOMAS, 2d Rept. of the U. 'S. Entom. Commission, 

 266, larvae in egg-pods of locusts ; col. figs., etc. West. Mississippi Val. 

 vulgaris LOEW, Cent., iv, 52. Nebr. 



OSTEN SACKEN, West. Dipt., 253. Col., Utah, N. Y. 

 N. J. Smith Cat. ; Montreal Chagnon. 



AMPHICOSMUS. 



COQUILLETT, West. Amer. Scientist, 1891, 219. 



cincturus WILLISTON, Biologia, Dipt., i, 296, pi. v, f. n, na. Guerrero, Mex. 

 elegans COQUILLETT, West. Amer. Scientist, 1891, 220. Cal. 



EXEPACMUS. 



COQUILLETT, Trans. Amer. Ent. Soc., xxi, 101, 1894. 

 johnsoni COQUILLETT, Trans. Amer. Ent. Soc., xxi, 101. Cal. 



PLOAS. 



LATREILLE, Dist. d'Hist. Nat., xxiv, 1804; Hist. Nat. Crust, et Ins., xiv, 



299, 1804. 

 MEIGEN, Illig. Mag., n, 268, 1803 (Conophorus} ; Syst. Besclir., n, 174, 



1820. 



SCHINER, Fauna Austr., i, 65, 1862 (states in footnote that Ploas was 

 used by Latreille before 1803 ; I can find no indication of an earlier date 

 than 1804). 



OSTEN SACKEN, West. Dipt., 360, 1877, table of species. 

 COQUILLETT, Trans. Amer. Ent. Soc., xxi, 101, 1894, table of species, 

 amabilis OSTEN SACKEN, West. Dipt., 261. Yosemite Val., Cal. 

 atratula LOEW, Cent., x, 44. Cal. 

 fenestrata OSTEN SACKEN, West. Dipt., 260. Sonoma Co., Crafton, and San 



Rafael, Cal. Death Val., Cal. Riley. 

 limbata LOEW, Cent., vin, 51. N. M. 



melanocerata BIGOT, Annales, 1892, 361 (Conophorus^). Cal. 

 nigripennis LOEW, Cent., x, 45.- Cal. 

 obesula LOEW, Cent., x, 46. Cal. 



pictipennis MACQUART, Dipt. Exot., n, i, 107, pi. ix, f. 3. Carolina, 

 rufula OSTEN SACKEN, West. Dipt., 261. San Geronimo, Cal. 

 serrata COQUILLETT, Trans. Amer. Ent. Soc., xxi, 102. S. Cal. 



GEMINARIA. 



COQUILLETT, Trans. Amer. Ent. Soc., xxi, 109, 1894. 

 pellucida COQUILLETT, op. cit., 109. S. Cal. 



LORDOTUS. 



LOEW, Cent., iv, 53, 1863. 



COQUILLETT, Entomologica Amer., HI, 115, 1888, table of species; West 

 Amer. Scientist, 1891, 197, table of species; Trans. Amer. Ent. Soc., 

 xxi, 109, table of species, 1894. 

 OSTEN SACKEN, Biologia, Dipt., i, 154, 1886. 

 apicula COQUILLETT, Entomol. Amer., in, 116. Cal. 

 buceros COQUILLETT, Trans. Amer. Ent. Soc., xxi, no. S. Cal. 

 canalis COQUILLETT, Entom. Amer., HI, 115. Cal. 



