Sugar maple borer 



Plagionotus specious Say 



1 Place where egg was laid 



la Another more than normally discolored 



2 Borer or grub in September from egg laid the same season 



3 Nearly full grown borer 



4 Adult or beetle 



5 Hole through which the beetle escaped from the trunk 



6 Sawdust or borings packed in burrow 



Maple and oak twig primer 

 Elaphidion villosum Fabr. 



7 Grub or borer in its burrow, a portion of the twig being cut away to show its 



work. 



7 a Small twig with only a thin shell .of bark, the wood being nearly all eaten 



8 Pupa in burrow. The base of both twigs represented has been nearly eaten off 



by the larva 



9 Adult or beetle 



Cottony maple scale 



Pulvinaria innumerabilis Rathv. 



10 Active or recently hatched young 



11 Adult females, many eggs can be found in the woolly masses 



12 Leaf with many young scales on its underside 





