Elm Leaf Beetle 



Galerucella luteola Muller 



1 Cluster of eggs, enlarged 



\a Side view of single egg, more enlarged 



2 Recently hatched larva or grub, enlarged 



3 Full grown larva or grub, enlarged 



4 Pupa, enlarged 



5 Overwintered beetle, enlarged 



6 Fresh, brightly colored beetle, enlarged 



7 Leaf showing eating of larvae or grubs and a few holes eaten by beetles, eggs in 



clusters, cast larval skins and full grown larvae 



8 Leaf nearly skeletonized by grubs of larvae and on it three cast larval skins 



9 Leaf showing holes eaten by beetles 



Bag or Basket Worm 



ThyridopUryx ephemerceformis Haworth 



io Bag or larval case as it passes the winter 



11 Same as preceding but cut open to show the pupal case and the eggs 



12 Several eggs, enlarged 



13 Recently hatched larva, enlarged 



14 Cases of young larvae on twig 

 14a Leaf eaten by young larva? 



15 Older larvae in their bags 



16 Full grown larva removed from its case 



17 Full grown larva walking with its case 



18 Male pupa, 



19 Female moth 



20 Male moth with wings spread 



21 Female pupa 



22 Bag of male hanging from a leaf and with the empty pupal case protruding 



from its lower extremity 



