Biological Papers. 55 



Ceratopogon specularis Coq. Colorado, Denver; April, on shore of lake. 



XHricotopus trifasciatus Panz. (N. Y. Mus. Bui. 86, p. 253.) Colorado, 



Denver; March, in window; April, on shore of lake, also in 



alfalfa field and at random. Species formerly cited only for 



Kansas. 



Orthocladius nivoriundus Fitch, Colorado, Denver; April, on shore of 



lake. Species formerly cited only for Kansas. 

 Tanytarsus fatigans Joh. (N. Y. Mus. Bui. 86, p. 292.) Colorado, Den- 

 ver; April, on shore of lake, 

 nigripilus Joh. (N. Y. Mus. Bui. 86, p. 287.) Colorado, Den- 

 ver; March, in window; April, on shore of lake, also in 

 alfalfa field and at random. Species formerly cited only 

 for Kansas. 

 Diamesa waltlii Meig. Colorado, Denver; March, in window. 



Family Mycetophilid^. 



(Determinations were made by Prof. O. A. Jonannsen.) 



Trichosia hebes Lw. Lawrence; May; June. New to Kansas list. 

 Mycetophila (Dynatosoma) scalaris Lw. (Me. Agr. Exp. Sta. Bui. 200, p. 



98.) Kansas, Lawrence; July. New to Kansas list. 

 Sciara acuta Joh. (Me. Agr. Exp. Sta. Bui. 200, p. 136.) Kansas, Law- 

 rence; April. Addition to Kansas list. 

 coprophila Lint., var. a. Joh. (Me. Agr. Exp. Sta. Bui. 200, pp. 136 

 and 137.) Kansas, Lawrence; May. New to Kansas list. Colo- 

 rado, Colorado Springs; April. Denver; April. Also collected 

 with S. varians Joh. at other places, concerning which see records 

 of the latter species and explanation, 

 nigricans Joh. (Me. Agr. Exp. Sta. Bui. 200, p. 134.) Kansas, 

 Lawrence; May, at night (paratype) ; June, twilight and at night; 

 and August, twilight. Addition to Kansas list, 

 parilis Joh. (Me. Agr. Exp. Sta. Bui. 200, p. 132.) Kansas, Law- 

 rence; May, at night; June, twilight (paratype); and August. 

 Colorado, Colorado Springs; April. Addition to Kansas list, 

 prolifica Felt. Kansas, Lawrence; June; July, twilights New to 



Kansas list. 

 varians Joh. (Me. Agr. Exp. Sta. Bui. 200, p. 135.) Kansas, Law- 

 rence; March; April; May; June, at electric light; and June, 

 twilight; July, twilight; and August. Addition to Kansas list. 

 Also probably in Colorado, Colorado Springs; April and August. 

 Cheyenne canyon; August. Denver; April, at random and al- 

 falfa field. On train near Limon; May. Tabernash; August. 

 Explanation.— Specimens bearing the above Colorado records 

 were too imperfect for accurate identification, but evidently 

 represented the species S. coprophila Lint, and S. varians Joh. 

 The records, therefore, are apt to apply to both species. 



Family Cecidomyiid^. 

 Neolasioptera major n. ap. Felt. Colorado, Colorado Springs; August, 

 5915 ft. altitude. 



Family Bibionid.t;. 

 Scatopse pulicaria Lw. Kansas, Lawrence; June. New to Kansas Hat. 



