INSECTS INJURIOUS TO THE APPLE AND PEAR 



539 



FIG. 467. Egg mass on 

 twig natural size. 



FIG. 468. Egg mass cov- 

 ered with web of newly 

 hatched caterpillars. 



FIG. 409. Newly-formed web. 



FIG. 470. Web bearing half-grown 

 caterpillars reduced in size. 



