6 
76 PROCEEDINGS OF THE NATIONAL MUSEUM. VOL, XXXIV. 
TRIMEROTROPIS SUFFUSUS Scudder. 
Two females, foothills of Mount Shasta in California. 
TRIMEROTROPIS TEXANA Bruner. 
One male, Tia Juana, Lower California. 
TRIMEROTROPIS VINCULATA Scudder. 
This common and widely distributed species was taken at Ciudad 
Juarez, Mexico, in Lower California, at Indio, Sierra Madre, and 
Pasadena in California, and also on Santa Catalina Island, Cali- 
fornia. , 
The stigma, which is usually blue in this species, is often yellowish 
or colorless. In desert regions, as at Indio, this species often flies 
into a thorny desert shrub, when they are very difficult to secure. 
TRIMEROTROPIS VINCULATA SIMILIS Scudder. 
One male, Calgary, Alberta, Canada. A study of a long series of 
similis has resulted in my reducing it to a variety of venculata. I 
have it from California, and its distribution is probably as extensive 
as that of vinculata. 
AULOCARA ELLIOTTI Thomas. 
One male, Klammath Lake, Oregon, July 27. 
ANCONIA INTEGRA Scudder. 
Several specimens at Indio, California, June 5. This is one of the 
commonest grasshoppers in this dry desert region, but even it occurs 
only sparingly. These grasshoppers are wild and hard to catch, 
especially as they oftem fly in thorny shrubs, where they are very difh- 
cult to get. They are protectively colored when on the ground and 
when flushed fly long distances, especially the females which fly much 
farther than the males. 
HADROTETTIX TRIFASCIATUS Say. 
Two females, Calgary, Alberta, Canada. 
HELIASTUS ARIDUS Bruner. 
Three females, four males, Ciudad Juarez, Mexico. 
HELIASTUS CALIFORNICUS Thomas. 
Both sexes taken at Sierra Madre, California, May 30. ‘These 
beautiful little grasshoppers are fine examples of protective colora- 
tion. They were taken on sand along a creek and their color so per- 
fectly blended with their surroundings that they would most certainly 
have escaped observation had they remained inactive. In specimens 
taken on white sand the white predominated, while one taken in a 
field on dark sand was mostly dark brown with darker mottlngs. 
The varying coloration seems wholly due to surroundings. The type 
specimens in the U. S. National Museum are reddish, having prob- 
ably been taken on similarly colored ground. 
