10 
PRELIMINARY LIST 
in September in the region of the foot-hills (Uhler, 5). Custer County, midal- 
pine, and Summit County (Cockerell, 10). 
Fort Collins, July 4tli; North Park, July 20th; Steamboat 
Springs, July 26th (Gillette). Fort Collins, July 29th, on 
wheat; Steamboat Springs, July 14th (Baker). 
Coriiiielaena albipennis Say. 
Of this species Dr. Uhler says: “Prof. Gillette has most kindly sent to me the only 
specimen of this insect of which there is any record of capture since the time of Mr. Say. It 
is a species of prominent interest in many respects. In the first place, it is in an undeveloped 
stage of coloring, showing that oxydation of the outer integuments had not been com¬ 
pleted when the insect was captured. It is also a female of unusually large size, in this 
section of the genus, and it is not in the first stage of exclusion from the skin of the 
nymph. The body is a little more bloated and consequently more convex above than in 
the fully dried insect. The contour is fringed all around with slender setae, as in C. 
ciliata Uhler. Its size is much less than that given by Mr. Say, but it agrees with his 
description in nearly every respect. The hemelytra are not ‘white with a small rufous 
spot,’ but white with a spot and tinge of black near the apex, such as occurs in the drying 
stage of C. lateralis Fab., a few hours after it has left the skin of the nympha. The 
‘small rufous spot’ of Mr. Say suggests a more recently excluded condition of the 
species, in which the color beginning as white had oxydized to rufo-piceous on its way to 
the final piceous or black color of the fully matured insect. C. unicolor Pal. Beauv be¬ 
comes almost uniform castaneous, or rufo-castaneous, as it changes from the milky white 
of exclusion to the final black.” 
This specimen was first determined by Osborn, who 
recorded it as the first specimen found since Say’s description 
(see Osborn, 1). Fort Collins, August 11th, on Glycyrrhiza 
lepidota (Baker). 
Corimelaena anthraeina Uhl, 
steamboat Springs, July 13th (Baker). Estes Park, July 
12th (Gillette). 
Corimelaena atra A. & S. 
Colo. (Gillette—see Osborn, 1). 
Rist Canon, April 16th (Gillette). Yeta Pass, June 27th 
(E. A. Schwarz). 
Corimelaena ciliata Uhler. 
Foot-hills five miles west of Fort Collins, hibernating 
under stones, March 22d to April 12th (Gillette and Baker). 
Corimelaena coenilescens Stal. 
Colo. (Ridings, see Uhler, 6). 
Corimelaena extensa Uhl. 
Horsetooth Gulch,"^ May 18th (Gillette). 
Corimelaena nitiduloides Wollf. 
Above timber line in mountains. (Carpenter, see Uhler, 6). A few speci- 
*A gulch about nine miles south-west of Fort Collins. 
