54 
BULLETIN 94. 
are not identical, with the forms described for flabellifer and 
cuneatus , but with such imperceptible gradations that I 
have been unable to recognize either of these species as sepa¬ 
rate from Occidentalis in our collections. 
The pevailing form of cercus in Colorado is that shown 
in Plate X, P A ig. 6 of Dr. Scudder’s “Revision of the Melano- 
pli,” and this is the form that agrees with Thomas’ original 
description of occidentals . 
Packard*; Scudd. This is a common species over all the eastern por¬ 
tion of the State to the foothills and it also occurs in the 
grassy glades and mountain parks of the eastern slope to an 
altitude of 8,000 feet or more. It would be difficult to say 
whether the species is more abundant on the level prairie or 
upon the sides and summits of the low hills. It seems to be 
everywhere on land covered with native grasses, but that the 
grasses are its food-plants is an inference. This species is not 
uncommon in alfalfa fields and has been noted by us as feeding 
upon cabbages. The species is so large and abundant it must 
do considerable damage to native pasture land. 
Males were just beginning to mature at Ft. Collins, June 
29, 1901, and occasional adults were noticed in the same lo¬ 
cality Oct. 8, 1902. (Ball.) Our adults were taken at Gree¬ 
ley June 24, 1899. 
The species varies in Colorado from a light rusty brown 
to a rather dark brown with more or less distinct lighter 
stripes on the lateral margins of the dorsum of the pronotum. 
In some of the darker specimens these lines are obsolete. 
In length, the males vary between 23 mm. and 29 111m. 
and the females between 23 mm. and 33 mm. Among the 
127 specimens in the College collection there are 33 males 
and 21 females with blue hind tibiae and 36 males and 37 fe¬ 
males with red hind tibiae. 
This grasshopper has been taken in the following locali¬ 
ties in Colorado: Ft. Collins, Dutch George’s, Livermore, 
Julesburg, Sterling, Orchard, Wray, Greeley, Windsor, Estes 
Park, Boulder, Lafayette, Denver, Palmer Lake, Pinewood, 
Durango, Rocky ford, Lamar and Holly. 
regalis Dodge. A few specimens of this species were all taken by 
Mr. Ball. One specimen from Ft. Collins, August 14, and 
specimens from Plolly, Lamar and LasAnimas bearing dates 
July 18 and September 8. Specimens determined by Prof. 
Bruner. 
