OF INSECTS. 



(chela) or claw, with a moveable thumb; 

 the hind feet are formed for executing dif- 

 ferent movements, as running, leaping, 

 fwimming. 



The wings are, in fome fubje&s, two, 

 in others, four in number, and are ei- 

 ther 



Plain, flretched out their whole length 

 without folds; 



Plicatile, folded up ; 



Eretfy fuftained in an ere& pofition, fo 

 that their extremities almoft meet 

 above the back of the infedt - y 



Patent, open, expanded, extended, in an 

 horizontal pofition ; 



Incumbent, covering horizontally the abdo- 

 men of the infed", 



Defleffed, in their pofition fomewhat refem r 

 bling the ridge of «a houfe, decli- 

 ning downwards along the fides of 

 the infeft, but in fuch a manner 

 A 4 that 



