306 CATALOGUE OF NORTH AMERICAN DIPTERA. 



Isevigatus LOEW, Neue Beitr., vin, 31 ; Mon. N. A. Dipt., n, 87. Middle States. 

 lunifer LOEW, Neue Beitr., vin, 32; Mon. N. A. Dipt., n, 89. N. Y. 



N. J. Smith Cat. 



meniscus LOEW, Cent., v, 88; Mon. N. A. Dipt., n, 336. D. C. 

 minutus LOEW, Neue Beitr., vin, 35 ; Mon. N. A. Dipt., u, 96. Middle States, 

 mirificus MELANDER, Canad. Ent., xxxn, 137, fig. 13. Mass. 

 nigribarba LOEW, Neue Beitr., vin, 33; Mon. N. A. Dipt., n, 91. Pa. 

 obscurus SAY, Jour. Acad. Sci. Phil., in, 85; Compl. Works, n, 75 (Dolichopus). 

 -Pa. 



WlEDEMANN, AllSS. Zw., II, 232 (id.). 



LOEW, Mon. N. A. Dipt., n, 290, 296, quotes Say and Wiedemann. 

 opacus LOEW, Neue Beitr., vm, 34; Mon. N. A. Dipt., n, 93. N. Y. 

 parvicornis LOE\V, Neue Beitr., vin, 34; Mon. N. A. Dipt., n, 92. Middle States, 

 phyllophorus LOEW, Cent., vn, 82. L. George, N. Y. 



White Mts., N. H. Slosson. 

 pcenitens WHEELER, see Hercostoinus nuicolor. 



politus LOEW, Neue Beitr., vin, 34; Mon. N. A. Dipt, n, 94 and 334. N. Y. 

 pusillus LOEW, Mon. N. A. Dipt., 11, 334. 111. 



ruficornis ALDRICH, Trans. Ent. Soc. Lond., 1896, 309. St. Vincent, W. I. 

 scotias LOEW, Neue Beitr., vin, 29; Mon. N. A. Dipt., n, 81. L. Winnipeg. 



N. J. Smith Cat.; White Mts., N. H. Slosson. 

 spectabilis LOEW, Neue Beitr., vm, 30; Mon. N. A. Dipt., n, 85. N. Y. 



N. J. Smith Cat. 

 subdilatatus LOEW, Neue Beitr., vm, 31 ; Mon. N. A. Dipt., n, 86. Middle 



States. N. J. Smith Cat. 

 subulatus LOEW, Neue Beitr., vin, 29; Mon. N. A. Dipt., u, 80. Trenton Falls, 



N. Y. 



tristis LOEW, Mon. N. A. Dipt., n, 83. Sitka. 

 ventralis LOEW, Neue Beitr., vm, 36; Mon. N. A. Dipt., n, 97. N. Y. 



D. C O. S. Cat; N. J. Smith Cat. 



HERCOSTOMUS. 



LOEW, Neue Beitr., v, 9, 1857; vin, 42, 1861 ; Mon. N. A. Dipt., n, 116, 

 1864. 



WHEELER, Proc. Cal. Acad. Sci., n, 8, 1899, table of species. 



MELANDER, Canad. Ent., xxxn, 138, table of species, 1900. 

 Note. This genus is not well-defined, and serves as a catch-all for 



aberrant forms near Gymnopternus. 

 aurifer THOMSON, Eugen. Resa, 512 (Dolichopns}. Cal. 

 anarmostus MELANDER, Canad. Ent., xxxn, 139, f. 3. Chicago, 

 flavipes ALDRICH, Biologia, Dipt, i, 336, pi. vi, f. 17. Guerrero, Mex. 

 impudicus WHEELER, Proc. Cal. Acad. Sci., n, 10, pi. i, f. 11-13. Monterey, Cal. 

 latipes ALDRICH, Trans. Ent. Soc. Lond., 1896, 311, pi. xii, f. in. St. Vincent, 



W. I. Grenada Aldrich. 

 metatarsalis THOMSON, Eugen. Resa, 512 (Dolichopus'}. Cal. 



WHEELER, Proc. Cal. Acad. Sci., n, 8, pi. i, f. 9, 10 (procerus). Mon- 

 terey, Cal. [J. M. A.] 

 procerus WHEELER, see metatarsalis. 

 unicolor LOEW, Mon. N. A. Dipt, 11, 117. Ft. Resolution, Huds. B. Terr. 



WHEELER, Psyche, June, 1890, 356 (Gymnopternus pcenitens). Wis. 



MIK, Wk-n. Ent. Zeit, 1894, 4- 8' cn - rc f- of pa-nitcns. 



MELANDER, Canad. Ent., xxxn, 138, syn. 



Seattle J. M. A. 

 vetitus MELANDER, Canad. Ent., xxxn, 138, f. i, 2. Clementon, N. J. 



