4 8 
bulletin 94 . 
This locust is a very general feeder, particularly upon 
cultivated plants. Those we have noted are: alfalfa, corn, 
Kaffir corn, wheat, oats, leaves of apple, peach and plum and 
sugar beets. 
The males taken vary between 27 mm. and 35 mm, and 
the females vary between 31 mm. and 42 mm. We have re¬ 
corded 'lie species from the following places: Ft. Collins, 
Windsor, Greeley, Merino, Julesburg, Loveland, Sterling, La- 
porte, Boulder, Pueblo, Colorado Springs, Canon City, Las- 
Animas, Rockyford, Lamar, Delta and Grand Junction. This 
species has been most abundant along the eastern portion of 
the State and at Grand Junction. We have not taken speci¬ 
mens above 5,500 feet’altitude. 
This species is rather late in maturing. A few adults 
were seen at Pueblo July 15th, 1901, and a few at Rockyford 
July 16th 1901 (Ball). The earliest adults at Ft.Collins were 
taken July 21, 1901. At Merino Aug. 8, 1902, females 
were not ready to oviposit. Females taken Nov. 11, 1902, 
still contained immature ova. 
dimidipennis Brun. (See description following this article). 
fasciatus Barnst. This species appears to be confined to the moun¬ 
tains and chiefly to high altitudes. Our specimens have come 
from twol ocations,Marshall Pass and Ward, at altitudes vary¬ 
ing between 10,000 and 11,000 feet, except a single specimen 
taken in the foothills a few miles west of Ft. Collins at an 
altitude of 8,000 feet. I wonder if this mountain species can 
be identical with the fasciatus of the New England states. 
It is certainly a native of the high mountain ranges in Colo¬ 
rado where it occurs very sparingly. 
The males vary between 15.5 mm. and 18 mm. in length 
and the females between 18 mm. and 21 mm. 
All the specimens taken are short-winged, belonging to 
variety curtus. 
fcmur-rubrum DeGeer. This is, next to atlanis , the most generally 
destributed of any species of Melanoplus in Colorado. Next 
to bivittatus , it is probably the most injurious species though 
dijferentialis is more injurious where it is most abundant. It 
occurs on both the eastern and the western slopes and in the 
mountains to an altitude of 8,000 feet. The species is ex- 
tremelv variable in color. The almost unicolorous fuscous- 
j 
brown form that is common in the eastern states is not the 
prevailing form here. The abdomen and all of the under 
surface is usually distinctly yellow. The lower part of the 
