240 



INSECTS AFFECTING CLOVER. 



elongate beetle, about one-fourth of an inch long, 

 with the thorax yellowish red, and the wing-covers 

 shining bluish-black. The larva, represented at a, 

 is a slender, cylindrical creature, with three pairs of 

 jointed legs on its under surface near the head, and 

 a pair of pro-legs at the posterior extremity. The 

 pupa is well shown at b of the same figure. It is 

 usually of a yellowish color. 



The eggs of this insect are evidently deposited in 

 a great variety of plants, in the stems of which the 

 larvae develop, feeding upon the pith of the stalk. 

 So long as there is a plentiful supply of wild plants, 

 it is doubtful if it becomes of economic importance. 



INJURING THE HAY. 



The Clover Hay-worm. 



Asopia costatis. 

 Clover hay that has been standing in the mow or 

 stack for some time, 

 is often infested by 

 numerous small 

 b r o w n wo r m s 

 w h i c h web the 

 dried steins and 

 leaves together and 

 feed upon them. 

 This is the insect 

 named above, and 

 its various stages 

 are represented, 



Fig. 130. Clover Hay-worm : 1,2, larva ; 

 coon; 4, pupa ; 5, 6, moth. 



