CATALOGUE OF NORTH AMERICAN DIPTERA. S/ 



SCHINER, Fauna Austr., n, 573, 1864. 



nivicola DOANE, Jour. N. Y. Ent. Soc., vm, 185. Pullman, Wash., on snow, 

 scita WALKER, List, i, 82. N. A. 

 valga HARRIS, Ins. Inj. Veg., 3d ed., 601, f. 260. Mass. 



WALKER, List, i, 82 (aspersa). Martin Falls, Can. [O. S.]. 



LUGGER, 2d. Rept. Ent. Minn., 1896, 230, pi. xvi, notes on habits; figures 

 both sexes ; oc. in Minn. 



TRIMICRA. 



OSTEN SACKEN, Proc. Acad. Nat. Sci. Phil., 290, 1861 ; Mon. N. A. Dipt., 



iv, 165, 1869. 

 VAN DER WULP, Ann. Soc. Ent. Belg., xxxvn, 1893, 499, notes on, and fig. 



of an abnormal specimen without discal cell. 

 anomala OSTEN SACKEN, Proc. Acad. Nat. Sci. Phil., 1861, 290; Mon. N. A. Dipt., 



iv, 167, pi. n, f. i ; West. Dipt., 200, note. D. C. ; New Rochelle, N. Y. ; 



Newport, R. I. Also in Cal. and Oaxaca, Mex. O. S. N. J. Smith 



Cat. 



GNOPHOMYIA. 



OSTEN SACKEN, Proc. Acad. Nat. Sci. Phil., 1859, 223; Mon. N. A. Dipt., 



iv, 172, 1869; Stud. Tipul., n, 198, 1887. 

 SCHINER, Fauna Austr., n, 535, 1864. 



ferruginea WILLISTON, Biologia, Dipt., Suppl., 226. Tabasco, Mex. 

 luctuosa OSTEN SACKEN, Proc. Acad. Nat. Sci. Phil., 1859, 224; Mon. N. A. Dipt., 



iv, 174. Fla. 

 WALKER, Trans. Ent. Soc. Lond., v, pt. 7, 66 (Limnobia nigricola'). U. 



S. [O. S.]. 



tristissima OSTEN SACKEN, Proc. Acad. Nat. Sci. Phil., 1859, 224; Mon. N. A. 

 Dipt., iv, 175, pi. n, f. 5 and iv, f. 19. D. C., N. Y., Va., Upper Wis. 

 R. Cat. gives Atlantic States and Canada. N. J. Smith Cat.; White 

 Mts., N. H. Slosson. 



POLYMERA. 



WIEDEMANN, Dipt. Exot., 40, i82i ; Auss. Zw., I, 57, 1828. 



OSTEN SACKEN, Mon. N. A. Dipt., iv, 335, 1869 and in, Appendix, 1873; 



Stud. Tipul., n, 215, 1887. 



WILLISTON, Ent. News, vn, 185, 1896, reports the genus from N. A. 

 albitarsis WILLISTON, Trans. Ent. Soc. Lond., 1896, 296, pi. x, f. 71. St. Vin- 

 cent, W. I. 



PHYLLOLABIS. 



OSTEN SACKEN, West. Dipt., 202, 1877; Stud. Tipul., n, 216, 1887. 

 claviger OSTEN SACKEN, West. Dipt., 203. San Bernardino, Cal. 

 encausta OSTEN SACKEN, West. Dipt., 204. Marin Co. and San Mateo, Cal. 

 obscura DOANE, Jour. N. Y. Ent. Soc., vm, 192, pi. vm, f. 7. Pullman, Wash. 



ULOMORPHA. 



OSTEN SACKEN, Mon. N. A. Dipt., iv, 232, 1869. 

 pilosella OSTEN SACKEN, Proc. Acad. Nat. Sci. Phil., 1859, 342 (Limnophila} ; 



Mon. N. A. Dipt., iv, 233. Trenton Falls, N. Y. 

 ALDRICH, 2ist Rept. Geol. Ind., 1898, 188. Oc. in cavern in Ind. 

 N. J. Smith Cat. 



