PLATE VIL 



Cocoons of Apantclcs (Protapanteles) congregatus Say on 



young Tobacco Worm. Natural size. 

 Cocoons of a Microgasterine, the host of Pezomachus 



minimus Walsh^ on apple twig. Natural size. 

 Cocoons of a Microgasterine, Apanteles (Protapanteles) 



glomeratus (Linn), a parasite of the Cabbage Worm. 



Twice natural size. 



