Bui. 419, U. S. Dept. of Agriculture. 



Plate IV. 



Parasites of the Grape Leaf-Folder. 



o Newly hatched larvEK of Ho.brobracon johannseni feeding on larva of grape leaf-folder; 

 b HabrobracoD larva, more enlarged: c, head of Habrobracon larva, still more enlarged, 

 showing rudimentary antennae: d. Habrobracon cocoon on portion of grape leaf- e ventral 

 view of pupaot Habrobracon; /, adult Habrobracon; g, Exoristapyste; h, Meteorus dimidiatus 

 (natural size at right) ; i, Perilampus platygaster, an internal hyperparasite attacking Mete- 

 orus iarvEe m Meteorus cocoon; j, Leskiomima tenera, adult; k, puparium of Leskiomima, 

 showing remains of chitinized parts of grape leaf-folder. Much enlarged. ( Original. ) 



