Coccus. HEMIPTERA. 123 



has given the generical name of Chermes, Others, 

 again (though they likewife fix themfelves, and 

 adhere immovably to the leaves of plants, like 

 Chermes) preferve the form of infect till they 

 have laid their eggs and peiifh ; to thefe, that 

 author has preferved theLinnasan generical name 

 of Coccus. Thefe are likewife diftinguifhed 

 from the Chermes by the form of their abdo- 

 men, which part, in the females, is more ob- 

 long, and compofed of a greater number of feg- 

 ments than in the females of the other genus ; a 

 kind of down, or cotton, likewife grows out of 

 their belly, which ferves as a neft in which they 

 depofit their eggs ; the males of all of them aie 

 much lefs than the females, and the larvas of all 

 the different fpecies perfectly refemble one an- 

 other. 



Thefe infects, whether the Linmean method 

 of arranging them, or that of Geoffroy is adopt- 

 ed, differ (as before oblerved) from all other 

 Dipterous ones, in the want of halter es or poijers* 

 and from the other claries, in the number of their 

 wings, which c i re um fiances render them very 

 diftinguilhable. 



GlNDS 



