130 



MORPHOLOGY AND TAXONOMY OF ADULT MALES 



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Ceroplastes sp. 



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C. berliniae 



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P. pomeranicum 



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P. corni 



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P. acertcola 



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P. ? betulae 



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Genus B 



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C. hesperidum 



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E. ?festucae 



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Eriopeltis sp. 



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S. prunastri 



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Genus A 



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E. pela 



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Ctenochiton sp. 



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F. viburni 



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P. myrtilli 



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P. bituberculatum 



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R. spiraeae 



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P. piceae 



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E. tiliae 



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C. Intermediate. 

 Size: A. Small (less than 1620^). B. Large (more 



than 2300u). C. Intermediate. 



HEAD 



Head in lateral view : A. Dorsoventrally elongated. 



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C. Both conditions possible. 

 Postocular ridge: A. Dorsally strong. 



C. • Intermediate. 



A. Forking below ocellus. 



B. Not so. 



A. Degree of sclerotization 

 reduced posteromedially. 



d 

 to 



c 



m 



