248 CATALOGUE OF NORTH AMERICAN DIPTERA. 



RONDANI, Dipt. Ital. Prod., i, 155, 1856 (Thereva and Dialineura). 



SCHINER, Fauna Austr., i, 161, 1862. 



WILLISTON, Manual, 69, 1896 (Thereva and Dialineura). 



COQUILLETT, Canad. Ent., xxv, 197, table of species, 1893. 

 albiceps LOEW, Cent., ix, 69. Red R. of the North; L. Winnipeg. 



See albifrons. 

 albifrons SAY, Jour. Acad. Sci. Phil., vi, 156; Compl. Works, n, 353.- Ind. 



COQUILLETT, Canad. Ent., xxv, 197, refers albiceps to this species, which 



seems very doubtful, from the descriptions. 

 argentata BELLARDI, Saggio, n, 89. Mexico City and Cordova, Mex. 



Porto Rico Roeder. 



bolboceras OSTEN SACKEN, Biologia, Dipt., i, 162. Presidio, Mex. 

 candidata LOEW, Cent., vin, 10. N. Wis. 



North U. S. and Canada O. S. Cat. ; also note, p. 239, correcting Loew, 



" read claitsa for aperta." Montreal Chagnon. 

 comata LOEW, Cent., vin, 9. Cal. 

 conspicua WALKER, List, i, 223. Nova Scotia. 

 crassicornis BELLARDI, Saggio, 11, 88, pi. n, f. 16. Mex. 

 crassicornis WILLISTON, Trans. Amer. Ent. Soc., xm, 293. Cal. 



COQUILLETT, Canad. Ent., xxv, 222, refefs to Psilocephala, from Cal. speci- 

 mens. 



diversa COQUILLETT, Jour. N. Y. Ent. Soc., n, 100. Col., Mont., Fla. 

 duplicis COQUILLETT, Canad. Ent., xxv, 199. S. D., Mont. 

 egressa COQUILLETT, Jour. N. Y. Ent. Soc., n, 99. Col., Cal. 

 flavicincta LOEW, Cent., ix, 70; op. cit., 71 (gilvipes). Wis., N. H. ; Mass. 

 [Coq.] 



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

 frontalis SAY, Long's Exped., App., 370; Compl. Works, i, 252.- N. W. Terr. 



WIEDEMANN, Auss. Z\v., i, 230. Montreal Chagnon. 

 fucata LOEW, Cent., x, 37. Cal. 

 germana WALKER, List, i, 222.- Fla. 



hirticeps LOEW, Berl. Ent. Zeitsch., 1874, 382. San Francisco, 

 johnsoni COQUILLETT, Canad. Ent., xxv, 200. Wash. 

 melanoneura LOEW, Cent., x, 36. Cal. 



COQUILLETT, Proc. Acad. Sci. Wash., n, 407, oc. at Kukak Bay, Alaska, 

 melanophleba LOEW, Zeitsch. f. ges. Naturwiss., 1876, 317. San Francisco. 

 nervosa WALKER, List, i, 223. Ga. (preoc. Osten Sacken). 

 nigra SAY, Jour. Acad. Sci. Phil., in, 40; Compl. Works, n, 57. Pa. 



WIEDEMANN, Auss. Z\v., i, 235. 



COQUILLETT, Canad. Ent., xxv, 222, doubtfully recognized from Cal. 

 nitoris COQUILLETT, Jour. N. Y. Ent. Soc., n, 101. Mo. 

 otiosa COQUILLETT, Canad. Ent., xxv, 199. Los Angeles Co., Cal. 



N. J. Smith Cat. 



ruficornis MACQUART, Dipt. Exot., n, i, 25. Carolina. 

 semitaria COQUILLETT, Canad. Ent., xxv, 198. S. Cal. 

 senex WALKER, List, i, 224. Nova Scotia. Province of Quebec Fyles. 

 strigipes LOEW, Cent., ix, 72. L. Winnipeg, Canada. 



JOHANNSEN, Ent. News, xiv, 15, notes. Axton, N. Y. 



White Mts., N. H. Slosson. 

 tergissa SAY, see Psilocephala. 

 varia WALKER, List, i, 221. J'l.i. 

 vialis OSTEN SACKEN, West. Dipt., 274. Yosemite Valley, Cal. 



