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. Oij the 

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



