IDAHO 
This is the first year that collections were made in Idaho during 
the adult survey. For the most part,' the collections were confined to 
an area where the natural vegetation was originally sagebrush designated 
as the northern desert shrub area. The most important sagebrush is 
Artemi sia tridentata , which ranges in height from 2 to 7 feet. Other 
common plants are little rabbitbrush ( Chry sothamnus stenophyllus ) , match- 
weed ( Gutierrezia sarothrae) . and others. One of the most common grasses 
is an introduced annual brome, Bromus tectorum , commonly called downy 
bromegrass. Crops are mostly in irrigated sections with seed alfalfa, a 
most important crop. This suffers from invasions from the adjacent range- 
land grasshopper infestations, even when such inf estations are comparatively 
light. 
lie lano plus femur- rub rum was the dominant species in the 305 speci- 
mens collected. A collection of this size for a State is too small upon 
which to base any conclusions. M. mexicanus formed half of a small collec- 
tion made in alfalfa. Hatching began the first week of Hay and subsequent 
unfavorable weather conditions delayed and prolonged it. Infestations 
originated to some extent in downy bromegrass. Infestations are on the in- 
crease and follow the irrigated farm areas. 
