GRASSHOPPERS ON SUGAR BEETS AND TRUCK CROPS. 5 
HABITS. 
The young grasshoppers are most active on clear, warm days, 
during which they feed much of the time. At night and during cool 
days they seek shelter among standing vegetation or under rubbish 
Fig. 6.—Egg capsules of the differential grasshopper, enlarged 1} times. (Original.) 
and clods. ‘They travel by jumping and crawling and are exhausted 
by slight exertion.’ 
The adults of the lesser migratory grasshopper can fly long dis- 
tances, but never do so except in search of food or to escape unfavor- 
able conditions. The adults of the other three species under con- 
sideration have wings that are small in proportion to the size of their 
Fic. 7.—Egg capsules of the Bruner grasshopper, 14 times natural size. 1, dorsal view; 2, lateral view; 
3, ventral view; 4, dorsal view of eggs in capsule; 5, lateral view of eggs in capsule. (Original.) 
bodies and they can not fly far. Only a lack of food or very unfavor- 
able surroundings will produce a migration to any great distance. 
Lack of suitable ground in which to deposit eggs may produce short 
migrations in all species, but it is probable that all of our injurious 
native species remain within 1 mile of their birthplace. 
