PLANT-LOUSE BEETLES. 185 



Scymnus, Ilerbst, contains a considerable number of very small black 

 species, easily recognized by their downy surface, and the usually ta\\ ny 

 tips of the elytra, or margins of the thorax, characters which appear to 

 have suggested the generic name, which literally means a young Hon ; 

 a name, however, which had already been given by Cuvier to a genus 

 of fishes of the shark family. Pi/sUohora, Chev., contains the P. 20ma€- 

 iilata, Say, a little species a tenth of an inch or less in length, readily 

 distinguished from all our other Coccinellidic by its white color densely 

 sprinkled with black dots. Two other and similar species have been 

 described, which perhaps are only varieties. (Ends, Mnlsant, is repre- 

 sented by the minute (E. pusilla, LeC, only a fifteenth of an inch in 

 length, almost globular in form, and of a shining black color. The male 

 has the head, sides of thorax and legs yellow. 



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