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 pruner 

 Elaphidion villosum Fabr. 



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



work. 



ja 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. 



io Active or recently hatched young 



1 1 Adult females, many eggs can be found in the woolly masses 



12 Leaf with many young scales on its underside 



