LOCUST OBSERVATIONS IN THE NORTHWEST. 57 
collected a few of these locusts, and, in addition, several specimens 
of the Arphia mentioned as having been seen at Santa Fé. It was 
found to be partial to the high, rocky mesas, about 1,000 feet above the 
Rio Grande. Here we also took several pupz of some Tettigidean, which 
frequents low, wet places near the river. Going into the Taos Valley 
we found about the same species heretofore mentioned, with the addi- 
tion of the larvie of several others, but in no case could any of these 
be referred to Caloptenus spretus, although there appear to be some 
representatives of the genus Caloptenus found there. 
Two species of Chimarocephala were met with in the rank vegetation 
(willows and cottonwoods) at Red River, and some larve and pup of 
one or two species of Pezotettix were taken. These were found among 
the sedges along the river. 
At Fort Garland, Arphia and Chimarocephala are represented along 
the valley of Ute Creek in fair numbers, and as one walks along among 
the trees numerous males of these species are to be seen in the air, 
After leaving Fort Garland, I did not notice any locusts until we 
reached a point below Laveta, where_the train stopped for something, 
and I heard the rattling noise made by some species of Gomphocerus, 
and after searching a while succeeded in capturing a male specimen. A 
few immature specimens of several other species were also observed, 
but not captured. Between there and here (Fort Collins) no stop was 
made, and consequently no specimens taken or no locusts of any kind 
noticed. Here, in the mouth of Poudre Canon, 12 miles to the north- 
west of Fort Collins, since the numerous heavy rains, there is a great 
variety of locusts, mostly young, of which we have taken large series. 
These are, however, all “natives.” Almost all of them are such species 
as are partial to certain plants, or else to particular kinds of surface 
configuration. These peculiarities can, however, be better set forth in 
a work entirely devoted to the history of North American locusts. 
There do not appear to be any species of migratory locusts here at 
present; none have been noticed in the air or on the ground. Speci- 
mens of Caloptenus minor, with both blue and red tibie, are quite com- 
mon here; in fact this is the only species of fledged Calopteni that I 
have thus far observed in this portion of Colorado this spring, though 
the young of several species are occasionally met with. I have also 
taken a few specimens of what to me now, without comparison with 
description, appear to be the Pezotettix dodgei of Thomas. PLP. (Dae- 
tylotum) pictus is just now commencing to hatch, while some of the 
Stenobothri and Gidipode have reached the pupa state. 
At various points along the route we observed a few species of ‘‘ na- 
tive locusts” in various stages of development, though none were taken 
except at a point on Laramie Plains, until we came to the Laramie 
River. These were a species of Gomphocerus that was found about 10 
miles from Tie Siding, and its peculiarity consisted in the close re- 
