DISTRIBUTION OF WESTERN CRICKETS. 
169 
simplex are the Dalles on the Columbia River, where it is abundant and 
injurious. I have received it from the Malheur River Indian Reserva- 
tion in Eastern Oregon, where it is also abundant. It also inhabits 
Montana, Idaho west of the Rocky Mountain divide, and, without doubt, 
the whole of Utah. Mr. J. D. Putnam 212 reports it as common in the 
valley of the Wind River, on the plains along the base of the Wind 
River Mountains, Wyoming, in July, 1873. " It is called ' Mesch' by the 
Shoshone Indians, who are said to sometimes use it for food." Mr. Put- 
nam also states that it was " very common in Middle Park, Colorado, 
in September, 1872. Scarcely any two specimens were colored alike. 
The male was frequently seen ' singing' while seated in the top of a 
wild sage-bush, the female being found on the ground below." 
Col. E. L. Berthoud writes us that — 
October 4-7, 1878, the large, black cricket [without doubt A. simplex'], so common in 
Utak and Idaho, were very abundant at Taghee and Henry's Passes, Henry's Lake, 
and on Henry's Fork. At Taghee Pass, altitude (J, 970 feet above the sea, they seemed, 
in spite of cold and snow, to be scarcely hindered by a temperature of 7° above zero. 
At Portneuf Canon this species was abundant in 1878. 
Of its southern limits, whether it occurs in Arizona, Southern Nevada, 
Utah, and in New Mexico, nothing is known. Its southern range, how- 
ever, is probably co-extensive with that of the Rocky Mountain locust 
(Caloptenus spretus.) 
Anabrus coloradus thus far has only been found in two points, Mani- 
toba on the north, and Southern Colorado and adjacent regions on the 
south. Mr. Thomas has received specimens from Manitoba, and has 
collected it in Colorado, east of the Rocky Mountain divide. Mr. Scud- 
der records it as having been collected by Lieut. W. L. Carpenter, U. S. 
A., in Southern Colorado, June 11-20, and on Taos Peak, Sangre de 
Cristo Mountains, New Mexico, at a height of 13,000 feet above timber 
line. This cricket is closely allied to Anabrus simplex, and appears to 
represent that species in the plains lying east of the Rocky Mountain 
divide. It appears thus far to have a greater northern and southern 
range than any of the other species. 
SYNOPSIS OF THE SPECIES OF ANABRUS AND ITS ALLIES. 213 
The following brief synopsis of the Decticides, made partly from that 
of Otto Hermann 2 ' 4 and partly from the arrangement of the Locustidce 
by Ignacio Bolivar, 215 will show the relation of Anabrus to the other 
genera of the group, and the chief distinguishing characters : 
A. Prostcruum with two spines between the base of the anterior legs. This division 
contains Pterolepis, Ehacocleis, Ihyrconotus, and several other 
genera. As Anabrus Raldcmanii has the presternum spined 
it belongs here, probably in Pterolepis. 
212 Proceedings of the Davenport Academy of Natural Sciences, vol. i, p. 266. 
213 By Cyrus Thomas. 
214 Verhand. d. k-k, Zool-bot. Ges., 1871. 
215 Ortopteros Espan. etPort, 1878. 
