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; Conipl. Works, 11, 353.— Ind. 



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

 seems very doubtful, from the descriptions. 

 argentata Bellardi, Saggio, 11, 89. — Mexico City and Cordova, Mex. 



Porto Rico — Roeder. 

 bolboceras Osten Sacken, Biologia, Dipt, i, 162. — Presidio, Mex. 

 candidata Loew, Cent., viii, 10. — N. Wis. 



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

 " read claiisa for aperta." Montreal — Chagnon. 

 comata Loew, Cent., viii, 9. — Cal. 

 conspicua Walker, List, i, 223. — Nova Scotia. 

 crassicornis Bellardi, Saggio, 11, 88, pi. 11, f. 16. — Mex. 

 crassicomis Williston, Trans. Amer. Ent. Soc, xiii, 293. — Cal. 



CoQUiLLETT, Canad. Ent., xxv, 222, refers to Psilocephala, from Cal. speci- 

 mens. 

 diversa Coquillett, Jour. N. Y. Ent. Soc, 11, 100. — Col., Mont., Fla. 

 duplicis Coquillett, Canad. Ent., xxv, 199.— S. D., Mont. 

 egressa Coquillett, Jour. N. Y. Ent. Soc, 11, 99. — Col., Cal. 

 flavicincta Loew, Cent., ix, 70; op. cit., 71 (gi hi pes). —Wis., N. H. ; Mass. 

 [Coq.] 



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

 frontalis Say, Long's Exped., App., 370; Compl. Works, x, 252. — N. W. Terr, 



Wiedemann, Auss. Zw., 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., 11, 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., iii, 40; Compl. Works, 11, 57. — Pa. 



Wiedemann, Auss. Zw., i, 235. 



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

 nitoris Coquillett, Jour. N. Y. Ent. Soc, 11, loi. — Mo. 

 otiosa Coquillett, Canad. Ent., xxv, 199. — Los Angeles Co., Cal. 



N. J.— Smith Cat. 

 ruficornis Macquart, Dipt. Exot., 11, 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. — Fla. 

 vialis Osten Sacken, West. Dipt., 274. — Yosemite Valley, Cal. 



