THE CANADIAN ENTOMOLOGIST 



207 



A. 



r!4-^^s^^ -^ 



5. i'^m 



^.^, 



m 



,1 



[-- 



D. 



Fig. 4. — Bodies of Apple Aphides. A, Aphis kochii Schonteden (spring migrant). B,.4. kochii 



Sch. (autumn migrant). C . Siphocnryne avena: Fahr. X), Aphis pomi Ge G. 



E, .4. crataegi Kaltenb. F' , .4. kochii (sorbi ol Sanderson) 



spring migrant (after Sanderson). 



-snasS^^^^^^^S: 



irrrrmrnii i i lo^ a , - y - 



1!! ^? '!' 5^V3[2 yv— 





Lixj, iii .u^ ' 7r.,.  r.i. ■T:»'Tt''J^ V .l'».-*.y , 



iCp^ 



B. 



C. 



D 



F. 



Fig. 5. — Antennae of alate viviparous female Apple Aphides. A, Aphis kochii Schonteden, 



13, V, '12 (sprina migrant). B. .4. Kochii Sch.. .5. IX, '12 (return migrant). C, 



.4. pomi De G., 17, VIII, '12. D, .4. cratargi Kaltenb. E, Siphocoryne 



avenx Fabr., 14, X, '1.5 (spring migrant). F, S. avenx Fabr., 



7, IX, '1.5 (return migran'). 



