216 



FRUIT INSECTS 



appearance of small snails. The body is swollen in front and 

 tapers behind like a tadpole (Figs. 199 and 200). The larva 



Fig. 199. — Pear slugs feeding on a leaf. 



passes through five stages ; at the fourth molt it loses its slimy 

 covering and in the fifth stage is of a light orange yellow color. 



It does not feed in 

 this stage, but crawls 

 or falls to the ground 

 in which, at a depth 

 of two or three inches, 

 it constructs its 

 earthen cocoon. 

 Most of the larvae 

 transform to pupae 

 ' in six to eight days 



and the adultsemerge 

 ^" about ten days later 



iUU. — Pear slugs feeding, enlarged. ^j^^ Jg^y gggg for a 



second generation, but a few of the first brood larvae re- 

 main unchanged in their cocoons until the following spring. 



Fi( 



