104 



3I0SQUIT0ES 



larvfc commenced to thrive much better, crew rapidly, 

 and the general color of the body changed to green. The 

 description of the habits given above held well until after 

 the last molt preceding the change to pupre. In tliis final 

 larval stage, as shown in Fig. 21, the diameter of the 

 thorax became much greater in comparison with the rest 



Fio. 22. — Head of Larva nf Annplieles runcii/ipennis, unilcrsido; greatly 

 enlarged. (Afler Nutlall.) 



of the body. The larva was less marked, more incon- 

 spicuous, and altered its fi^eding habits to some extent. 

 After remaining at the surface of the water, fi^eding, as 

 before, upon floating partich^s, for some time, it would 

 wriggle violently and descend to the bottom, where it 

 would remain frequently as long as ten minutes before 

 reascending to the top. Its appetite was evideutlj'^ so 



