PLATE 9 



A. — Eriosoma lanuginosa: Distal segments of antenna of spring migrant. 



B. — Eriosoma pyricola: Distal segments of antenna of spring migrant. 



C. — Eriosoma pyricola: Distal segments 6f antenna of fall migrant from European 

 pear stock. 



D. — Erioso7na pyricola: Distal segments of antenna of fall migrant, American 

 material. 



E. — Eriosoma pyricola: Distal segments of antenna of spring migrant. 



