CLOVER CULTURE. 



127 



If insects are essential to the pollination and fertilization 

 of clover seed, they also play an important part in its destruc- 

 tion, and one of he most 

 difficult problems in grow- 

 ing- clover seed is to escape 

 the ravages of insects that 

 prey upon the seed. We, 

 therefore, conclude this 

 chapter with a description 

 of the habits and life his- 

 tory of two of the most 

 dangerous clover seed 

 pests, having- described in 

 the previous chapters the 

 insects that prey upon the 

 leaf, the root and the hay- 

 after it has been cured. 

 The most dang-erous, 

 perhaps, of these is the 

 clover-seed midge, illustra- 

 tions of which will be 

 found on this page. In 

 explanation of these illus- 

 trations, after Riley, and 

 for the purpose of more 



THE CLOVER-SEED MIDGE (HALE). 



readily indent i f yi n g- 

 the midge, should it 

 appear in any field, we 

 call the attention of our 

 readers more particu- 

 larly to figures 1 and 2 

 herewith given. Fig- 

 ure 1 represents an 

 enlarged back view of 

 the male, with scales 

 stripped off in order to 

 show the structure 



more clearly ; b repre- TH1! *-- > M B 



sents the eye, the palpi and the basal joints of the antennae 

 highly magnified ; c represents the male organ highly magni- 

 fied ; d represents the highly magnified antenna! joints ; 



