56 BULLETIN 94. 
were still common Sep. 25th, 1898, near Ft.Collins (notes by 
Ball). 
The males in the collection vary between 19 mm. and 
23 mm. in length and the females measure from 23 mm. to 29 
mm. in length. The elytra of the short-winged males vary 
between 5 mm. and 6.5 mm in length and those of the females 
between 5.5 mm. and 7.5 mm. in length. 
A few specimens of the long-winged form ( volucris ) have 
been taken at Ft. Collins and one specimen was taken at La¬ 
mar. 
We have taken the species at the following places: Ft. 
Collins, Greeley, Julesburg, Merino, Pueblo, Colorado Springs, 
Rockyford, Lamar and Holly. 
DACTYLOTUM Charpenter. 
pictum Thom. A fairly common species on the plains of the east¬ 
ern portion of the State and occuring on dry exposed areas 
for some distance within the foothills but not far. Its princi¬ 
ple food-plant,according to Prof. Ball’s notes, seems to be As¬ 
ter multiflora though he has several times noted it feeding 
upon Kalmia glauca (American laurel). He has also seen 
it resting upon Senecio Douglasi , apparently as a food-plant, 
and we have found occasional specimens on alfalfa. 
The bright coloration is very constant; males vary be¬ 
tween 20 mm. and 24 mm. in length and the females between 
29 mm. and 35 mm. The wings of the males vary between 4 
mm. and 5 mm. and those of the females between 5 mm. and 
6 mm. Taken at the following places: FT Collins, Laporte, 
Livermore, Wray, Pueblo, Rockyford, Lamar and Holly. 
We have found the species abundant just outside the first 
foothills and have taken adults at Ft. Collins from July 26th 
to Sep. 30th. 
