n8 ORDER II. Aphis. 



-■ '.I... , i i, ' ' 



Genus IX. Aphis. 

 Linn. Syft. Nat. page 733. 



The roftrum of the Aphis is bent in- 

 wards. 



Their antennas are longer than the 

 thorax. 



They have either four eredl wings, or 

 are without wings. 



Their feet are made for walking. 



They have generally two little horns or 

 fpines placed on the hinder part of their 

 abdomen. 



Scha^rTer afTerts, that all the male Aphides have 

 wings, and that all the females are apterous. 



The tarfi, in each fex, have only one articu- 

 lation. 



The antennae are fetaceous. 



Geoffroy has obferved, that the aphides have 

 two beaks, one of which is feated in the 

 breaft, the other in the head ; this laft extends 

 to, and is laid upon the bale of the pedoral one, 



and 



