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PLATE III 

 Birch Troe-hojjpor, Cdvjiiinta siiipida Walk. 



a, dorsal view of adult. 

 h, lateral view of adult. 



c, female. 



d, adult on twig. 



e, male genitalia. 

 /, female genitalia. 



g, egg puncture scars showing eggs and an egg greatly enlarged. 



h, i and j, nymiphal stages. 



h. nymph feeding ujjon twig. 



I, scar on twig resulting from egg deposition. 



