CATALOGUE OF NORTH AMERICAN DIPTERA. 1 49 



Glover, Rept. Dept. Ag., 1872, 115; two cases in Va., with figs, of larva 



and fly. 

 Riley and Howard, Insect Life, iv, 1891, 214. 

 Webster, Science, Feb. 23, 1894, 109. 



E. D. Cope, letter to Osten Sacken, published in Psyche, 1897, 75. 

 Felt, i6th N. Y. Rept., 992-994, 1901, at Franklin, N. Y. 

 For Sciara sp. infesting roots of grass, see Forbes, 111. Report, 1883, 57, 

 pi. IV, f. 5-9. 



For occurrence of Sciara in caves, see Aldrich, 21st Report Geol. Ind., 

 1896, 186; also below. 

 abbreviata Walker, List i, 109. — Martin Falls, Canada. Also N. J. — Smith 

 Cat., and White Mts., N. H.,— Slosson. 



I consider Walker's three-line description quite unrecognizable. 

 agraria Felt, in Lintner's 12th N. Y. Report, 225, pi. vi, f. 5, 6, 10. N. Y. ; col- 

 lected in a mushroom cellar. 

 alternata Rubsaamen, Bibl. Zool., xx, Lief. 4, 106. — Greenland. 

 americana Wiedemann, Auss. Zw., i, 68. — Brazil. 



Schiner, Novara, 11, Brazil and Columbia; would include atra ]\IcQ. and 



cognata and prccipiia Walker, all South American, in the synonymy. 

 Osten Sacken, Biologia, Dipt., i, i, oc. in Mexico and Central America; 



remarks on the synonymy. 

 Riley, Amer. Nat., 1881, 150 (The Yellow Fever Fly), biology. 

 Williston, Biologia, Dipt., Suppl., 221, oc. in several places in Mex. 

 aprilina Meigen, Syst. Beschr., i, 285 (223). — Europe. 

 Zetterstedt, Dipt. Scand., x, 3754. 

 Schiner, Fauna Austr., 11, 424. 

 LuNDBECK, Dipt. Groenl., i, 250. oc. in Greenland. 

 atra ]\Iacquart, Dipt. Exot., i, i. 78. — Brazil. 



Bellardi, Ditt. Mess., i, 12, oc. in Mexico. 

 See americana. 

 atrata Say, Long's Exped., App., 366; Compl. Works, i, 249. — N. W. Terr. 



Wiedemann, Auss. Zw., i, 70. 

 attenuata Rubsaamen, Bibl. Zool., 1898, Heft xx. Lief. 4, 106. — Greenland. 



LuNDBECK, Dipt. Grcenl, i, 242, pi. v, f. i (lafipennis) [Lundbeck]. Green 

 land. 

 biformis Lundbeck, Dipt. Groenl., i. 256, — Greenland. 

 borealis Rubsaamen, Bibl. Zool, 1898, Lief. 4, 109, pi. vi, f. 14. — Greenland. 



Coquillett, Proc. Wash. Sci., 11, 392, oc. in Sitka, Alaska. 

 caldaria Lintner, Lintner, loth N. Y. Report, 397, figs. — Boise. Idaho; larvae in 



greenhouse pots. 

 cochleata Ru'bsaamen, Bibl. Zool., 1898, Lief. 4, 108, pi. vi. f. 22. — Greenland. 

 ?Rubsaamen, loc. cit., 107 (marginata) [Lundbeck, with ?] Greenland. 

 Lundbeck, Dipt. Groenl., i, 247, pi. v. f. 6 (hcrinorrhoidalis) [Lundbeck]. 

 — Greenland. 

 concinna Williston, Dipt. St. Vincent, 266. — St. Vincent, W. I. 

 coprophila Lintner, loth N. Y. Rept., 391. — New York. The Manure Fly: desc. 



of habits, etc. 

 debilis Williston, Dipt. St. Vincent, 266, pi. viii. f. 22.— St. Vincent, W. I. 

 delectata Williston. Dipt. St. Vincent, 267. — St. Vincent, W. I. 

 dimidiata Say, Species of American Insects found by Jos. Barabino, sec. ed., 15 ; 



Compl. Works, i, 308. — New Orleans, La. 

 exigua Say, Long's Exped., App., 367; Compl. Works, i, 249. — N. W. Terr. 

 Wiedemann, Auss. Zw., i, 69. 



