COLEOPTERA. 



505 



arrive in the nest or hive, as the case may be, and there they attack 

 the larvae. When once fixed upon the hymenopterous larvae, they 

 undergo a change of skin, and their shape then becomes totally 







^^ / 



Fig. 544.— Female and Larva of Stylops. 



different, and their legs are atrophied. But these parasites being 

 exceedingly small, do not kill the larvae ; they suck their juices, after 

 the manner of the Ichneumons, and do not interfere with the meta- 

 morphoses of the insects upon which they are parasitic. On the 

 right hand, in the accompanying engraving (Fig. 544), there is a larva 



