REPORT OF ENTOMOLOGIST. 51 
11,000 and 12,000 feet altitude and was taken between 10,500 
and 12,500 feet in altitude. Food-plants not known. 
glaucipes Scudd. The collection contains 16 males and 22 females 
taken at Wray, Pueblo and Nepesta. The males vary be¬ 
tween 17 and 20 min., and the females between 20 and 27 
mm. in length. See Melanoplus simplex. 
infantilis Scudd. This is the smallest of our Melanopli and is a 
mountain and high plains species in this State. It seems to 
prefer grassy areas in exposed places and may commonly be 
found in the grassy mountain parks to an altitude of 8,000 
feet at least. We have not seen the species much higher than 
this. The earliest adults at P A t. Collins were taken June 21st, 
1901 (Ball). The latest we have taken the species is Oct. 
12th, 1898. 
Our specimens vary in size as follows: Males from 13 
mm. to 19 mm. and females from 15 mm. to 21 mm. 
We have taken specimens at Ft. Collins, Laporte, Liver¬ 
more, Dunkley, Idlewild, Dutch George’s, Virginia Dale, 
North Park, Denver, Palmer Lake, Pneblo, Alder, Estes Park, 
Durango and Gunnison, and at Kimball, Neb. It doubtless 
occurs east across the plains of the northern portion of the 
State. 
It is hardly abundant enough to be considered an injur¬ 
ious species in Colorado. 
kennicotfii Scudd. Marshall Pass, Aug. 27, 1899; Durango, Aug. 7, 
1899; Chama (N. M.), Aug. 8, 1899; Ward, Aug. 30, 1899. 
The lowest we have taken this species was at about 6,500 feet 
feet at Durango. At Chama,(N.M.),it was taken at the station, 
7,863 feet, while at Ward and at Marshall Pass specimens 
were taken between 10,000 and 11,000 feet altitude. The 
species has not been found abundant anywhere. 
lakinus Scudd. This is distinctly a plains species occurring all over 
the eastern portions of the State to the first foothills. It is 
common on ground covered by native grasses upon which it 
is supposed to feed though we have no positive evidence upon 
this point. It has been noted as feeding upon sugar beets 
and Russian thistle (Ball) and is usually common where tum¬ 
ble-weeds grow. 
The species occurs in both long-and short-winged forms, 
the latter being by far, more common. Out of the 225 speci¬ 
mens in the College collection there are 12 macropterous males 
and 7 macropterous females. 
