coccus, coccus. 



Generic Character. 



Rostrum pectorale. 

 Abdomen postice setosum. 



duo? erectae masculis. 

 Feminae apterse. 



Snout pectoral. 

 Abdomen bristled behind. 

 Wings t\vo upright in the 

 males. Females wingless. 



AX this remarkable genus the males are much 

 smaller than the females, and of a widely different 

 appearance, being furnished with wings, of which 

 the females are altogether destitute. The Cocci are 



O 



found on the leaves and bark of various vegetables: 

 hence they become injurious to many exotics in 

 our stoves and green-houses. Of these the Coccus 

 Adomdum of Linnaeus is the most common: the 

 female, which, when nearly full grown, measures 

 somewhat more than a fifth of an inch in length, 

 has somewhat the appearance of a small millepede 

 or Oniscus, being of an oval shape, slightly convex 

 above, with the body divided into many transverse 

 segments projecting sharply on the sides, and fur- 

 nished with small processes or points; which are 

 longer on the two hindmost divisions of the bodv 

 than on the rest, so as to give the appearance of a 

 bifid tail. The whole insect is of a pale rose-colour, 

 and appears more or less. covered with a fine white 



