85 



Insects injurious to Oak (Foliage). 



1-6. Bombyx quercus (oak eggar moth) : perfect insects, male 

 and female, with drawings ; eggs, larvae, and cocoon. 



7-9. Perfect insects and enlarged drawing ; leaves folded 

 by the larvae. 



10-14. Hybernia defoliaria (mottled umber) : perfect insects, 

 male and apterous female, with drawings ; larvae. 



15. Aptesis nigrocincta : this and the next are parasitic flies 

 which prey upon Hybernia defoliaria. 



1 6. Agryplon flaveolatum : perfect insect. 



17-19. Hybernia aurantiaria : perfect insects; male and 

 apterous female, with sketch of former. 



2023. Cheinatobia brumata (winter moth) : perfect insects, 

 male and apterous female, with drawings ; larvae on a twig. 



24-27. Pkigalia pilosaria (pale brindled beauty) : . perfect 

 insects, male and apterous female, with drawings of same ; larvae 

 on leaves. 



28-35. Orgyia antiqua (vapourer moth) : perfect insect, with 

 drawings ; eggs, with enlarged drawing ; cocoon, and larvae on 

 leaves. 



36-40. Pygcera bucephala (buff-tip) : perfect insects ; sketch 

 of moth resting on birch twig to show its resemblance to one ; 

 larvae and pupa. 



41. Pimpla instigator: perfect insect; parasitic on Pygcera 

 bucephala. 



42-45. Amphydasis betularia (peppered moth) : perfect insects, 

 male and female ; larva and pupa. 



46-53. Orgyia pudibunda (pale tussock moth) : perfect in- 

 sects, male and female, with drawings ; eggs, larvae, pupa, and 

 cocoon. 



54-56. Attelabus curculionides : perfect insects, with enlarged 

 drawing ; leaves rolled up by beetle as habitations for its larvae. 



57, 58. Melolontha vidgaris (cockchafer) : perfect insects. 

 The beetles gnaw the leaves of the oak. [See also Insects 

 injurious to Grass, Nos. 13-15.] 



59-65. Balaninus glandium (acorn weevil) : perfect insects 

 and larvse, with enlarged drawings ; sketches of infested acorns 

 and of sections of same ; earth cocoons of pupae. 



E. 144. 1886. 



Insects injurious to Oak (Galls). 



1-6. Cynips kollari (marble-gall) : perfect insects and enlarged 

 drawings ; galls, with one in section ; sketches of gall and of the 

 conglomerate form of it. 



7-10. Dryophanta scutellaris (cherry-gall) : perfect insects 

 and enlarged drawing ; gall in situ and sketch showing one in 

 section. 



