248 
The Ohio Naturalist. 
[Vol. V. No. 2, 
insuetus Osten Sacken, West. Dipt. 219. From Cal., Wash., Col., Xev., 
Alaska. 
intcnsivus Townsend, Psyche VIII, 93. From X. Mex., Col. 
laticeps Mine, Described in this paper. From Cal. and Washington, 
laticornis Hine, Described in this paper. From Ariz. and Mex. 
lineola Fabricius, Fmt. Syst. IV, 309. Syst. Anti. 102. Osten Sacken, Pro- 
drome II, 44S. Biol. Cent. Am. I, 56. From eastern X. A. west to 
Col. and Utah. 
(?) sciitellaris Walker, Dipt. Saund. 27. 
simnlans Walker, List I, 182. 
trilineatns (Latr. Bellardi, Saggio Ditt. Mess. I, 03 
opacus Coqnillett, Invert. Pacifica I, 21. From Xev., Utah, Wyo. 
osburni Hine, Described in this paper. From B. C., Alaska, Mont., Wash, 
phtenops Osten Sacken, West. Dipt. 217. From Cal., Col., M’ash., B. C., 
Alaska. 
procyon Osten Sacken, West. Dipt. 210. From Cal. 
productus Hine, Described in this paper. From Wyoming and Utah, 
punctifer Osten Sacken, Prodrome II, 453. West. Dipt. 220. From west- 
ern X. A. as far north as San F'rancisco. 
reinwardtii Wiedmann, Auss. zweifl. Ins. I, 130. Osten Sacken, Prodrome 
II, 401. From eastern X. A. as far west as Colorado. 
eryihroletus Walker, Dipt. Saund. 25, tab. 2, fig. 1. 
rhombicus Osten Sacken. Prodrome II, 472. West. Dipt. 21S, From Col., 
Wyo., Or., Wash., Mont. 
melanorhiniis Bigot, (Therioplectes '), Mem. Soc. Zool. Fr. V, 042. 
septentrionalis Licw, Verh. zool. bot. Ges. VIII, 592. Osten Sacken. Pro- 
drome II, 467. From Labrador, Alaska. Wis., Ouebec, Alberta, Dak., 
Wyo.. B. C., White Mts., X. H. 
sequax Williston, Tr. Ks. Ac. Sc. X, 137. From Ore., Wash., B. Col. 
Icucophorus Bigot, Mem. Soc. Zool. Fr. V. 040. 
sonomensis Osten Sacken, West. Dipt. 210. From Cal., Wash., B. Col., 
Alaska. 
hcemaphorus Marten Can. Ent. XIV. 210. 
susurrus Marten, Can. Ent. X\', 111. From Mont., Wyo. 
venustus Osten Sacken. Prodrome II, 444. Hine, Tabanida' of Ohio 56. 
From Texas, Okl. Ks. , Ohio. 
zonalis Kirby, Faun. Bor. Am. IV, 314. Republication of Kirby’s descrip- 
tion in Can. Ent. XIII. 107. Osten Sacken. Prodrome II, 403. Cata- 
logue of 1878, 50 and 220. Townsend, Tr. Am. Ent. Soc. XXII, 58. 
From northern U. S. and Canada. 
flavocinctiis Bellardi, Sag. Ditt. Mess. I, 61. Osten Sacken, Catalogue of 
1878, 220. 
tarandi Walker, List I, 150. 
Macquart, Dipt. Exot. Suppl. 4, 35. 
