Bui. 41 9, U. S. Dept. of Agriculture. 
Plate IV. 
~i 
S « %jv/ 
Parasites of the Grape Leaf-Folder. 
a, Newly hatched larva of Habrobracon jotonnseni feeding on larva of grape leaf-folder: 
6. Habrobracon 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 pupa of Habrobracon; /, adult Habrobracon: a. ExorMa pmn : /,'. Mrteorw dimidiatus 
(natural size at right; ; i, PerUampus plaiygaster, an'internal hypeiparaajte al^MngMetfr 
se in Meteorus cocoon: ./. LesMomiTna tenera, adult: fc, puparium of Leskiomima. 
remains (If chltinupd narto nf irrora loof f n l^ n . u„„l.Li. o ,^__- •_ _•. . ' 
orus larv* i ; ^ jjesKwrnirna tenera, adult: fc, puparium of Leskiom 
sbowing remains of chitinized parts of grape leaf-folder. Much enlarged. (Original. ) 
