PLATE VIII. 



A. — Capitophorus shepardiae, cornicle of alate form. 



B. — Capitophorus shepardiae, head of alate form. 



0. — Capitophorus shepardiae, cauda of alate form. 



D. — Anomalaphis comperi, apterous form. 



E. — Anomalaphis comperi, antenna of apterous form. 



F. — Anomalaphis comperi, wings. 



G. — Cervaphis schoutedeniae , extremity of abdomen. 



H. — Illinoia liriodendri, head of alate form. 



I. — Illinoia liriodendri, cornicle of alate form. 



J. — Illinoia liriodendri, cauda of alate form. . 



K. — -Myzus cerasi, head of apterous form. 



L. — Myzus cerasi, cauda of apterous form. 



M. — Myzus cerasi, cornicle of alate form. 



N. — Phorodon humuli, head of apterous form. 



0. — Phorodon humuli, cauda of apterous form. 



P. — Phorodon humuli, cornicle of apterous form. 



Q. — Phorodon humuli, head of alate form. 



R. — Macrosiphonella sanhorni, head of alate form. 



S. — Macrosiphonella sanhorni, cornicle of alate form. 



TV — Macrosiphonella sanhorni, cauda of alate form. 



U. — Macrosiphum rosae, head of alate form. 



V.- — Macrosiphum rosae, cauda of alate form. 



W. — Macrosiphum rosae, cornicle of alate form. 



X.— Myzus persicae, head of apterous form. 



Y. — Myzus persicae, cornicle of alate form. 



Z. — Myzus persicae, cauda of alate form. 



AA. — Microparsus variabilis, cauda of alate form. 



BB. — Microparsus variabilis, wings. 



CC. — Microparsus variabilis, cornicle of alate form. 



DD. — Microparsus variabilis, head of alate form. 



~&¥*.— Idiopterus nephrolepidis, cornicle of alate form. 



FF. — Idiopterus nephrolepidis , fore wing. 



GG. — Idiopterus nephrolepidis, head of alate form. 



HH. — Idiopterus nephrolepidis, cauda of alate form. 



II. — Pentalonia nigronervosa, head of apterous form. 



JJ. — Pentalonia nigronervosa, wings. 



KK. — Pentalonia nigronervosa, cauda of alate form. 



LL. — Pentalonia nigronervosa, head of alate form. 



MM. — Pentalonia nigronervosa, cornicle of alate form. 



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