CHERMES. CHERMES. 



Generic Character. 



Rostrum pectorale. 

 Antenna thorace longiores. 



quatuor, deflexa?. 

 Thorax gibbus. 

 Pedcs saltatorii. 



Snout pectoral. 



Antenna longer than thorax. 



Wings four, deflex. 



Thorax gibbose. 



Feet formed for walking. 



A HE insects of the genus Chermes, like those of 

 the genus Aphis, are found on the leaves, young 

 shoots, and bark of various vegetables: they are, 

 in general, of small size, and in their larva state 

 are of a much more flattened form than when 

 farther advanced, and exhibit merely the rudi- 

 ments of the future wings: in this state also many 

 of them appear coated, especially on the hind part 

 of the body, with a flocculent or filamentous sub- 

 stance, of a white colour, and of a clammy or 

 tenacious nature, which exsudes from the pores of 

 the animal, and is gradually protruded into the 

 form above-mentioned. 



Chermis Alni is found on the leaves and shoots 

 of the Alder. Its larva is entirely covered, about 

 the hinder part, by thickly fasciculated heaps of 

 viscid down or cotton, which, if purposely rubbed 

 off, are quickly reproduced by the animal, which 



