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JOURNAL OF ECONOMIC ENTOMOLOGY 



[Vol.3 



TABLE 12 



Average hatching period = 10.22 + days. 



Larva: The larva does not cut an opening in making its exit from 

 the shell, but by muscular contractions, rolling and twisting inside the 

 shell, they obtain sufficient pressure to burst through the exceedingly 

 thin membrane, which becomes brittle about hatching time. 



The larva upon first hatching is 1.4 mm. to 1.5 mm. long and 0.35 

 mm. wide, and has the head shield dark, wdth only a faint trace of the 

 inverted "Y" on the face. The remainder of the body is pale dirty 

 yellow with the black spots on the segments showing distinctly. The 

 hairs on the anal segments are much longer than those on the other 

 portions of the body and are enlarged at the tips. The white median 

 stripe on the dorsal surface is faintly indicated. 



The larva when five to six days old sheds its skin and passes into 

 the second stage, the head at this time becoming distinctly darker and 

 the inverted " Y" on the face a dirty white. The white dorsal stripe 



