tucker: collecting insects. 103 



Family B0RBORID.E. 



Limosina evanescens— continued. 



at extreme apex of wing, but with the other specimens it is very gently 

 curved forward at tip; the costal vein always extends on to apex. 



Length, 1.5 mm. 

 Limosina fontinalis Fal. Kansas, Douglas county; April, at night; July, at 



electric light; August. —Colorado, Colorado Springs; April, August. 



Tabernash; August. 

 Limosina obfuscata, new species. Colorado, Colorado Springs (5915 feet); 

 August, 1906. Type: One female specimen in the collection of the 

 University of Kansas. 



Body and legs deep opaque black, excepting tawny color of the tarsi of 

 middle legs, posterior coxae largely, middle coxae slightly, all the tro- 

 chanters, and the knees, also halteres, which are paler, besides some 

 spots or markings on the pleurge. Where rubbed, however, the sur- 

 face is shining. Dorsum of thorax clothed with numerous black 

 bristles and short, stubby hairs, likewise the front of the head. Scu- 

 tellum flat, bearing eight bristles arranged as follows: Two long ones 

 close to the apex and a group of three on each side near the base; the 

 middle bristle in this group is similar to the apical ones, and the one in 

 front is quite short, but the other, which stands behind, is of medium 

 length. 



Antennae wholly black, including the long arista, which, however, has ex- 

 tremely fine grayish pubescence; third joint large and ovate, bearing 

 several bristly hairs. Femora of fore legs ciliate behind, tibiae of 

 middle legs bristly, short cilia on tibiae of posterior legs; hind meta- 

 tarsi not much dilated, two-thirds as long as the second joint, both of 

 these joints with fulvous, brush-like pubescence on under side. 



Wings smoky tinged, a faint cloud enveloping apical curve of second vein, 

 which joins the costa considerably more than half the distance between 

 the tip of first and third veins; third vein curves gently forward and 

 terminates some distance before the apex of the wing; all veins black, 

 the fourth being distinctly indicated beyond the discal cell. Edge of 

 first section of costa fringed with bristles, second section distinctly 

 and the third finely ciliate. 



Length, 2.3 mm. 

 Borborus equinus Fal. Kansas, Douglas county; April; April, at night; 

 May, at night and at electric light.— Colorado, Colorado 

 Springs; April. Tabernash; August, 

 geniculatus Macq. Colorado, Colorado Springs; August. 

 Sphaerocera subsultans Fab. Colorado, Colorado Springs; April. 



Family Sciomyzid^. 



Sciomyza nana Fal. Kansas, Douglas county; May, at night. 



obtusa Fal. Kansas, Douglas county ; June. New to Kansas. 

 Tetanocera costalis Loew. Kansas, Douglas county; May. 



umbrarum Linne (=pictipes Loew). Kansas, Douglas county; 

 April; May, at night. Sedgwick county; September, sweep- 

 ings in slough-grass in timber along Arkansas river. 

 Sepedon armipes Loew. Kansas, Sedgwick county; sweepings in slough- 

 grass in timber along Arkansas river.— Colorado, Colorado 

 Springs; August, 

 fuscipennis Loew. Colorado, Colorado Springs; August. 



