78 



9. Aleyrodes sp. (white-powdered fly) : perfect insects on 

 leaf. 



10. Wasps: skin of an apple the interior of which was 

 entirely eaten out by these insects. 



11. Tortrix pomonana (codling moth): perfect insects with 

 enlarged drawing; drawing of apple opened to show larva 

 within it. 



12. Yponomeuta padella (small ermine moth) : perfect insects 

 and larvse in their web ; enlarged drawings of perfect insect and 

 larva. 



13. Coccus (Mytilaspis) conchiformis (mussel scale): twigs 

 attacked ; enlarged drawings of fenjale and of upper and under 

 sides of scale. 



E. 130. 1886. 



Insects injurious to Mangold, Onion, and Potato. 



A. Mangold. 



1-7. Anthomyia betce (mangold fly) : perfect insects and pupae ; 

 magnified drawings of perfect insect, larva and pupa ; model of 

 leaf showing blisters caused by the grub mining the leaf. 



8-10. Silpha opaca and S. atrata (beet carrion beetle) : perfect 

 insects and drawings of larva, natural size and magnified. 



11-15. Plusia gamma (silver Y-moth): perfect insects and 

 drawing ; larva and enlarged sketch of same ; drawing of egg 

 magnified. 



16-21. Hadena oleracea (white- line moth) ; perfect insects 

 and drawing, larvse and pupa ; sketches of ordinary brown larva 

 and of green variety feeding on onions. 



22, 23. Atomaria linearis : perfect insect and enlarged 

 drawing. 



24-27. Millipedes, which feed on roots of plants. 



24, 25. Julus pulchellus : specimens and enlarged drawing. 

 26, 27. Julus terrestris : enlarged drawing. 



28, 29. Aphis papaveris: specimens of perfect insect; en- 

 larged drawings of winged, apterous, and young females. 



B. Onion. 



30, 31 . Chortophila platura : specimens and magnified drawing 

 of perfect insect. 



32-40. Anthomyia ceparum : specimens of perfect insect, 

 larva and pupa, with enlarged drawings of them and sketches 

 showing the larvse feeding inside an onion, and the position in 

 which eggs are sometimes laid ; model of an onion attacked by 

 grubs. 



