CATALOGUE OF NORTH AMERICAN DIPTERA. 629 



Howard, Proc. Wash. Acad. Sci.,* 11, 592, bred from a pond " srongly 



impregnated with horse manure." — D. C. 

 Charlotte Harbor, Fla. — Johnson (dimidiata). 



PARYDRA. 



Stenhammar, Mon. Ephyd., 144, 1S44. 



LoEW, Mon. N. A. Dipt., i, 164, 1862. 



ScHiNER, Fauna Austr., 11, 257, 1864. 



Becker, Berl. Ent. Zeitsch., xli, 208, 1896. 

 abbreviata Loew, Cent., i, 97; Mon. N. A. Dipt., i, 168. — Pa. 

 appendiculata Loew, Zeitsch. f. Ges. Naturwiss., 1878, 202. — Te.xas. 

 bituberculata Loew, Mon. N. A. Dipt., i, 165. — Middle States. 



N. J. — Smith Cat.; S. D., Kans., Ida., common — J. M. A. 

 breviceps Loew, Mon. N. A. Dipt., i, 167. — Middle States. 

 imitans Loew, Zeitsch. f. Ges. Naturwiss., 1878, 201. — Mass. 

 limpidipennis Loew, Zeitsch. f. Ges. Naturwiss., 1878, 201. — D. C. 

 paullula Loew, Mon. N. A. Dipt., i, 167.— Locality omitted; U. S.— O. S. 



CoQUiLLETT, Proc. Wash. Acad. Sci.. 11, 462, oc. on Popof Id., Alaska. 

 pinguis Walker, Dipt. Saund., 409 (Ephydra). — U. S. 



Loew, Zeitsch. f. Ges. Naturwiss., 1878, 199. — D. C, Texas. 



N. J.— Smith Cat. 

 quadrituberculata Loew, Mon. N. A. Dipt., i, 165. — Middle States. 



Ormond, Fla. — Johnson. 

 unituberculata Loew, Zeitsch. f. Ges. Naturwiss., 1878, 200. — D. C. 

 varja Loew, Cent., iv, 100. — Sitka, Alaska. 



EPHYDRA. 



Fallen, Hydromyzides, 3, 1820. 

 Loew, ]\Ion. N. A. Dipt., i, 169, 1862. 

 ScHiNER, Fauna Austr., 11, 260, 1864. 



Packard, Proc. Essex Inst., vi, 1869, and Amer. Jour, of Arts and Sci- 

 ences, 1st ser., I, 1872, discusses in both the species of Ephydra which 

 in the larval stage inhabit salt or alkaline waters. 

 WiLLiSTON, Trans. Conn. Acad., vi, July, 1883. on " Dipterous Larvae in 



Western Alkaline Lakes, and their L^se as Human Food." 

 ScHWARZ, Canad. Ent., xxiii, 236, on larvae in Great Salt Lake. 

 Becker, Berl. Ent. Zeitsch., xli, 216, 1896. 

 atrovirens Loew, Mon. N. A. Dipt., i, 169. — Middle States, 

 austrina Coquillett, Canad. Ent., xxxii, 36. — Georgiana, Fla. 

 brevis W.vlker, Trans. Ent. Soc, n. sen, iv, 233. — U. S. 

 crassimanus Loew, Cent., vi, 88.- — Mex. 



halophila Pack.\rd, Proc. Essex Inst., VL 46, fig. — 111. The name is preoccupied, 

 calif ornica Packard, Amer. Jour. Arts and Sci., 3d ser., i, 103 (larva and pupa 

 only). — Cal. ; larva in alkaline lake. 

 ? WiLLisTON, Trans. Conn. Acad., vi, July, 1883, adult desc. ; larvae in 

 Soda Lake, Nev., also in Mono Lake. Identity not quite certain, 

 gracilis Packard, Amer. Jour. Arts and Sci., 3d sen, i, 103, larva only. — Cal. 



ScHWARZ, Canad. Ent., xxiii, 235, extended notes on the larvae — abundant 

 in Great Salt Lake. 



