206 CATALOGUE OF NORTH AMERICAN DIPTERA. 



nebulosus Palisot de Beauvais, Ins. Recu., 222, pi. 11, f. 4 and 5. 



Unrecognizable — O. S. 

 nigrescens Palisot de Beauvais, Dipt., 100, pi. 11. f. 2. — N. A. 

 Wiedemann, Auss. Zw., i, 116, translates desc. 

 OsTEN Sacken, Prodrome, 11, 453. — Va., N. Y., ]\Iass., N. J., Pa., Md., 



Tenn., Can. 

 Hart, Bull. 111. State Lab. N. H., iv, 238, desc. of pupa.— 111. 

 nigrovittatus Macquart, Dipt. Exot., Suppl. 11, 24.- — Nova Scotia. 



OsTEN Sacken, Prodrome, 11, 449. — Mass., R. I., N. Y., N. J. 

 N. J. — Smith Cat., " The common ' greenhead ' of the seashore " ; Mon- 

 treal — Chagnon ; Fla., St. Augustine — Johnson. 

 nivosus OsTEN Sacken, Prodrome, 11, 445. — N. J. 



HiNE, Tabanidse of Ohio, 52. — Ohio. 

 novae-scotiae Macquart, Dipt. Exot., Suppl. 11. 24. — Nova Scotia. 



OsTEN Sacken, Cat., 61, note on type. 

 obesus Bigot, Mem. Soc. Zool. France, v, 660. — Mex. 

 obliquus Walker, Dipt. Saund., 28.- — Jamaica, 

 ohioensis Hine, Canad. Ent., 1900, 248 (pruinosus, preoc.) ; 1901, 28, change of 



name ; Tabanidse of Ohio, 53. — Ohio, 

 orion OsTEN Sacken, Prodrome, 11, 442. — Mass., Conn., N. Y., Quebec. 



N. J. — Smith Cat. ; Montreal — Chagnon. 

 pallidus Palisot de Beauvais, Ins. Recu., loo, pi. iii, f. 3.^ — N. A. 



Unrecognizable — O. S. 

 palpinus Palisot de Beauvais, Ins. Recu., 221, pi. iii, f. i. — N. A. 



Unrecognizable — O. S. 

 parallelus Walker, List, i, 187.^ — W. I. 

 parvidentatus Macquart, Dipt. Exot., i, i, 142. — Antilles. 

 parvulus Williston, Kans. Acad. Sci., x, 141. — San Domingo. 

 patulus Walker, List, i, 175. — Ga. 

 phsenops Osten Sacken, West. Dipt., 217. — Sierra Nevadas, Cal. 



TowNSEND, Proc. Cal. Acad. Sci., iv, 597, notes. 

 picticornis Bigot, Mem. Soc. Zool. France, v, 662. — Hayti. 

 politus Johnson, Ent. News, xi, 325.— Merchantville. N. J. 

 procyon Osten Sacken, West. Dipt., 216. — Marin and Sonoma Counties, Cal. 

 propinquus Bellardi, Saggio, i, 65. — Mex. Preoccupied ; Williston thinks this 



may be the same as lineola. 

 proximus Walker, List, i, 147. — Fla. Unrecognizable — O. S. 

 pruinosus Bigot, Mem. Soc. Zool. France, v, 683. — Mex. 

 pruinosus Hine, see ohioensis. 

 psammophilus Osten Sacken, Prodrome, 11, 445. — Ft. Capron, Fla. 



Lake Worth, Fla. — Johnson, 

 pumilioides Williston, Biologia, Dipt., i, 260, pi. iv. f. 21. — Guerrero, Mex. 

 pumilus Macquart, Dipt. Exot., i, i, 146. — Carolina. 



Osten Sacken, Prodrome, 11, 448.^Md., N. Y., Fla. 

 Hine, Tabanidse of Ohio, 53. — Ohio. 

 N. J. — Smith Cat. ; Fla., several places — Johnson. 

 punctif er Osten Sacken, Prodrome, 11, 453 ; West. Dipt., 220. — Utah, Cal., Col., 

 and Sonora, Mex. 

 Williston, Kans. Acad. Sci., x, 139, notes. 



TowNSEND, Trans. Amer. Ent. Soc, xxii, 60, oc. in N. M. and Lower Cal. 

 Idaho and Wash.— J. M. A. 

 purus Walker, Trans. Ent. Soc, v, 274. — Mex. 

 pygmaeus Williston, Kans. Acad. Sci., x, 141. — Fla. 



