2 FARMERS’ BULLETIN 691. 
will be followed by increased damage. As might be expected, succu- 
lent truck crops and sugar beets, in a region that is almost barren of 
other tender vegetation, are attacked by many insects, and among 
the first of these are the native grasshoppers. 
In 1913 occurred the worst outbreak seen in Kansas for years. 
(See map, fig. 1.) People were forced to apply control measures on 
Fic. 2.—The differential grasshopper ( Melanoplus differentialis): Adult. Enlarged. (Original.) 
a larger scale than ever before. All crops such as sweet corn, onions, 
and rhubarb suffered severely. Taking the country over, it is likely 
that every kind of garden and truck crop suffered damage from 
grasshopper attacks. As a result, progressive growers are eagerly 
seeking preventive and remedial measures. 
DESCRIPTION. 
The four species which accomplished most of the injury to Kansas 
truck crops during 1911, 1912, and 1913 were the differential grass- 
hopper (Melanoplus differentialis Thomas), the two-lined grasshopper 
Fig. 3.—Two-lined grasshopper ( Melanoplus bivittatus): Adult. Enlarged. (Original.) 
(M. bivittatus Say), the lesser migratory grasshopper (JZ atlanis 
Riley), and one for which the writer knows no common name, but 
which, in view of its scientific name, Aecoloplus bruneri Caudell, we 
may call “‘the Bruner grasshopper.” The adults of all four species 
intermingle during July and August. 
The differential and the two-lined grasshoppers are the two large 
species having yellow bodies from 1 inch to 14 inches long. The 
head and necks of the differential grasshopper (fig. 2) bear fan if any 
dark markings, the forewings are eaiiors light olive-green, and the 
outside of an hind thigh (tre a row of black V’s that open back- 
ward, with a row of black dots just below. 
The two-lined grasshopper (fig. 3) receives its name from the two 
yellow stripes that extend backward, one from each eye, across the 
