£ 44 ] 

 rnent of the abdomen ; through rhefe? 

 the infect breathes ; and if oil be ap- 

 plied fo as to ftop them up, it proves 



fatal to moft of themu 



Tergum, theBack, is thefuperiorpart 

 of the abdomen. 



Venter, the Belly, is the inferior 

 ■part, 



Anus, is the pofterior part of the ab- 

 domen, perforated for the evacuation of 

 the excrement. This part alfo frequent- 

 ly contains the organs of generation. 



* * * Artus, the limbs, are the va- 

 rious inftruments of motion. 



Pedes, the Legs, are generally fix<. 

 there is an exception to thisy however, 

 in the clafs Aptera, many of which 

 have eight, as Acari (Mites) Phalan- 

 gii ; moft ©f the Aranei, (Spiders) Scor- 



piones 



