The Life History of fhe Bireh riutjiel 115 



PLATE V 



Corythucha pallipes Parshley 

 Fig. a, adult. 



Fig. h, lateral view of hood and median carina. 

 Fig. c, egg. 



Fig. (/, first nymphal stage. 

 Fig. e, second nymphal stage. 

 Fig. /, third nymphal stage. 

 Fig. <i, fourth nymiphal stage. 

 Fig. /(, fifth nymphal stage. 



Fig. 4.5, Yellow Birch Leaves showing eggs, nymphs and adults. Note dis- 

 colored areas caused hy feeding punctures. 



Literature Cited 

 Drakr. Carl J. 



l!tIO. On some Tingidae New to the Fauna of Canada. Canadian Ento- 

 mologist, Vol. LI, pp. L39 and 160. 



GrBsox. Edmund H. 



1918. The Genus Corythucha Stal. Transactions of the American Ento- 



mological Society, Vol. XLIV, pp. 69-105. 



Pakshley. Howard M. 



1919. New England Hcmiptcra-Hoteroptera. Canadian iMitoniologist, Vol. 



LI, pp. 70-73. 



1920. Hemipterological Notices I (Tingidae). Entomological News, Vol. 



XXXI, pp. 271-27.5. 



