38 
however, by being uniformly yellowish green in color, with the head 
similarly colored, with the exception of the two minute brown eye- 
spots, and by the possession of seven instead of eight pairs of abdom- 
inal feet. 
Damage inconsiderable.—This species, also, can scarcely be consid- 
ered as having great economic importance. So far as they work on 
the leaves of the wheat their damage is inconsiderable, but occasionally 
they are attracted by the green portion of the stem just below the 
head, especially as the wheat ripens, and sever the stalk at this point, 
causing considerable loss. This form of damage is more characteristic 
of the Dolerus species than of the species last described, which is more 
strictly a leaf feeder. 
Special precautions not necessary.—The fact that damage from both 
the stem-boring and leaf-feeding sawflies has never been very consid- 
erable in this country has made it unnecessary to adopt any special 
precaution with regard to them. Where land is deeply plowed and 
replanted in the fall both the stem borers and the leaf feeders will be 
buried too deeply to escape. The only danger, therefore, comes from 
land that is left in stubble over winter or long enough for the adult 
insects to emerge 1n spring. Should any of these insects ever assume 
any especial importance, they can doubtless be kept in easy control by 
seeing that all wheat-stubble land is deeply turned under with the 
plow in the fall or winter. The likelihood of serious infestation from 
neighboring grass lands is not great, although not to be ignored. 
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