OSTEN SACKEN ON WESTERN DIPTERA. 345 



(Monogr., iii, 245) from Mexico, for which the subgenus (Edicarena was 

 established. The peculiar structure of the large head, proboscis, eyes, 

 the short wings, the straight course of the third veiu, etc., are all to 

 be found in T. persuasa, as described in T. tetanops. This is the second 

 (Edicarena known, and the first in the United States, therefore an inter- 

 esting addition to the fauna. 



Trypeta (Euaresta?; sp. — Very like T. wqualis Loew (Monogr., i, 

 80, and iii, 308, tab. x, f. 20), but probably different; on the front 

 femora. above, a black stripe, not mentioned in Dr. Loew 7 s description, 

 and not visible in my eastern specimens. The wings are broader and 

 the hyaline spots on them larger. Canon City, Colo. (P. E. Uhler). 



Trypeta (Eutreta) sparsa, Loew, Monogr., i, 78, iii, 274, tab- 

 x, f. 13. — A specimen from Manitou, Colo. (Uhler), and another from 

 Southern California agree in the main with the specimens from the At- 

 lantic States. (Compare, however, what Dr. Loew says about this spe- 

 cies in the 3d volume of the Monographs). 



Trypeta (sensu strict.) sp. — A single female from Colorado Springs 

 (P. E. Uhler) is very like T. palposa Loew (Monogr., iii, 253, tab. x, 

 f. 9). The picture of the wings is like the quoted figure, only the brown 

 cross-bands covering the two cross-veins are not connected on the fifth 

 vein in my specimen. As Dr. Loew's specimen was a male, and indiffer- 

 ently preserved, it will be more prudent to wait for more material. 



Trypeta (Aspilota) alba Loew, Monogr., iii, 285, tab. xi, f. 11.— 

 Canon City, Colo. (P. E. Uhler). I observe, however, that the third 

 antennal joint is not round, as stated in the description, but has a dis- 

 tinctly marked angle at the end. 



Trypeta (Ensina) humilis Loew, Monogr., i, 81, iii, 291, tab. x ? 

 f. 17. — Cuba (Lw.); Key West; the Bermudas; Denver, Colo. (Uhler). 



Trvpeta (Straussia) longipennis Loew, Monogr., i, 65, iii, 238, 

 tab. x, f. 2 $ , 39. — Different localities in Southern Colorado in June 

 (W. L. Carpenter). The singular variety longitudliialis 'Lw. also oc- 

 curred there ; also in Golden, Colo., July 3 (A. S. Packard). 



Trypeta (Urellia) sp. — Very common at Crafton, near San Ber- 

 nardino, in Southern California, in March. Eesembles T. Solaris Loew 

 (Monogr., i, 84, iii, 325, tab. x, f. 19) very much. The spot on the 

 wings of the female is almost exactly like the figure, which is also taken 

 from a female ; at the same time, that spot is subject to considerable varia 

 tions in different specimens. In the male the spot is smaller, and the 

 two rays running toward the apex, as well as that reaching toward the 

 stigma, are not to be found; but in this sex likewise it is difficult to find 

 two specimens absolutely alike. A small gray spot on the fifth vein, men- 

 tioned in the description of T. actinooola Lw., sometiu.es, but not al- 

 ways, makes its appearance here. A difference which seems to be con- 

 stant lies in the fact that there is no brown around the small cross-vein, 

 nor any dot on its proximal side nor in the discal cell. This species 

 seems to have a wide distribution; I have a female from Santa Monica, 



