UHLER ON INSECTS. 789 



Chrysopa sp. 



One species was coininou in and near Denver, and a second at Colo- 

 rado Springs. Both are small, and appear to belong to the group of 

 Ch. nigricornis Burm. 



Myrmeleon sp. 



One species allied tojli". immaculatm De Geer was swept from the tall 

 grass and plants west of Denver, and a specimen of the same was cap- 

 tured near Golden, August G to 18. 



Myrmeleon sp. 



Another species reserabli ng M. salmis Hageu was common on the 

 plains near Denver, on the highlands west of that city, at Golden, at 

 Colorado Springs, and on the hills near the Garden of the Gods, 

 August 8 to 19. 



Fam. PHRYGANIDiE. 



Phryganea sp. 



A species similar to P. internipta Say was swept from a bush over- 

 hanging Beaver Brook, not far from its entrance into Clear Creek Canon, 

 August 6. It was to be expected that these mountain streams would 

 furnish many varieties of this family ; but m3^ most ardent labors in 

 beating every bush and sweeping every plant along the banks did not 

 yield adequate results. 



Setodes sp. 



A pretty little insect of this genus was captured near Colorado 

 Springs and near the CaBLou of the Arkansas. 



ffydropsyche sp. 



One or two species of this group were common in the valley of the 

 Arkansas, near and in the cation, August 11. 



P8EUD0NEUR0PTERA. 



Fam. LIBELLULID^. 

 Diplax vlcina Hagen. 



Two or three specimens were taken in the western suburbs of Denver, 

 and the species also occurs at Sloan's LaTie, on the highlands beyond 

 Denver, August 8 to 18. 



Diplax semicincta Say. 



Very common in the western suburbs of Denver, near a marshy spot 

 resulting from the overflow of the creek which empties into the South 

 Platte River. Some of the specimens had only a small faint cloud of 

 the brownish-yellow color upon the wings ; while in others the deep 

 color was quite distinct from the base to beyond the middle. A similar 

 disparity was also observed in the size of specimens; the smallest being 

 fully one-fourth less in expanse of wings than the largest. August 5 

 and later. 



4 BULL 



