56 BULLETIN NO. 4, DIVISION OF ENTOMOLOGY. 
mention in this connection. However numerous this insect has thus far 
become in the mountain districts of Idaho, Montana, and Wyoming, I 
have failed to learn as yet of any depredations having been caused by 
it-in these Territories, though I am unable to predict what they will do 
in the future, but my opinion is that they need not be feared. This, of 
course, is only an opinion based upon no facts. From observations 
made during the period of three years in this portion of the country 
they appear to be on the increase, and at other points not seen by me 
heretofore were quite common this summer. Whether they have mi- 
' grated into these new sections recently or whether they already occurred 
there during previous seasons and were overlooked I am unable to say. 
None have been noticed in the act of migration thus far this season, 
though at Livingston, on the 2d of August, they were seen by far the 
most numerous, and were very restless and kept up a continual hopping 
and flitting about as if desirous of doing something besides being quiet 
and inactive. One thing we can be pretty sure of in connection with 
this insect, viz., that it will never leave the mountains and higher alti- 
tudes for the agricultural districts of Dakota and Nebraska, which lie 
to the east and southeast of here, because they are not capable of such 
long continued flights as are other species. 
C. spretus. 
Again, in the valleys of the Great Salt Lake Basin a few specimens 
of this insect were observed, which were, as a rule, confined to meadows 
and low, wet localities, away from fields of grain and garden patches, 
and I do not think they will ever become numerous enough here to do 
great damage to the products of the farm. 
NA DIVE, LOC USES 3 
There were but three or, at the most, four species of locusts which 
had attained wings to be found near Albuquerque, N. Mex., viz., two 
(Hdipode aud one Psoloessa. They all frequent comparatively dry locali- 
ties where the grass is beginning to show a little green. They are quite 
active, are easily disturbed, and fly rather far at each start. Among the 
young not yet matured but two species were discerned, viz., one Gdi- 
poda and a Caloptenus or Pezotettix. These latter were only met with in 
fields of alfalfa, along irrigating ditches, and then only occasionally. 
At Santa Fé we saw several specimens of the Psoloessa, and also two 
or three specimens of some species of Arphia. In passing along the 
road from Santa Fé to Espanola, as we approached the sandy flat, and 
also as we crossed it to the south of Santa Cruz, quite a number of a 
large, yellow-winged Gdipoda (Hippiscus haldermannii), were seen. It 
was the same as the largest one taken at Albuquerque. 
At Espanola we observed a few of the same three species mentioned 
above as having been taken at Albuquerque. Again, at Embudo, we 
