74 



Insects injurious to Pears. 



1. Tinea clerkella: leaves eaten by. 



2. Selandria cethiops : perfect insects, and enlarged drawing ; 

 gnawed leaves and drawing of leaf with larvae. 



3. Argyromyges scitella: perfect insects and enlarged draw- 

 ing. 



4. Psylla pyri : perfect insects, enlarged drawing and injured 

 leaves. 



5. Typhlodromus pyri : injured leaves (mite). 



6. Astyages hemerobiella : perfect insect, enlarged drawing, 

 injured leaf and drawing of leaf wit]} larva in its case. 



7. Eriosomti lanigera: swellings on roots due to. 



8. Cecidomyia nigra: model of young pear destroyed by 

 larvae feeding inside it. 



9. Zeuzera cesculi : perfect moth, with pieces of stems bored 

 by the larvae, which are shown in their burrows. 



10. Lyda fasciata : enlarged drawing of perfect insect, with 

 nest of larvae and drawing of ditto. 



11. Tortrix Weberana : perfect insect, enlarged drawing, and 

 piece of stem with burrows of larvae, and exuviae of chrysalids 

 sticking out of them. 



12. Anthonomus pyri : young pears gnawed by the larvae of. 



13. Tortricidw : reared from rolled-up pear leaves. 



14. Otiorhynchus vastator (Weevil) : pear bloom gnawed by. 



15. Aspidiotus ostrceformis : (Oyster scale insect) drawing 

 of twig with scales, of male and of females (enlarged). 



16. Coccus of pear tree. 



E. 129. 1886. 



Insects injurious to Bush Fruits. 



A. Currant. 



1, 2. Myzus ribis : perfect insects, enlarged drawings of 

 apterous and winged females, of winged male, and of pupa of 

 male. 



3. Rhopalosiphum ribis : enlarged drawings of apterous and 

 winged females, and of leaf showing the red bladders under 

 which the insects hide. 



4-6. Phytoptus ribis : injured twigs ; sketch of injured branch 

 and of a magnified bud ; enlarged drawing of mite. 



7-10. Sesia tipuliformis : perfect insects, enlarged drawing, 

 larva, and sketch of larva within a stem. 



11-18. Vanessa (Grapta) C.-album (comma butterfly) : 

 perfect insect of spring brood, with drawing of upper surface and 

 under side of wing ; perfect insects of summer brood, showing 

 upper and under surfaces, with drawings of the same ; larvae on 

 models of leaves. 



