362 MANUAL OF VEGETABLE-GARDEN INSECTS 



defined regions, — head, thorax and abdomen (Fig. 227). The 

 head bears a pair of antennae, a pair of compound eyes and often 

 three simple eyes or ocelU. On the thorax are borne three pairs 

 of legs and in the adult condition two pairs of wings, except 



Anlenna Sucking Bedvk. 



y 



Thorax-s 



AbdomeTi'* 



-^FbreWing 



—HindWing 



Fig. 227. — Ventral view of a squash-bug. 



in the flies, when the hind pair is represented by a pair of knobbed 

 appendages known as poisers. The legs (Fig. 228) consist of a 

 series of segments named as follows, beginning with the one 

 nearest the body : coxa, trochanter, femur, tibia and tarsal 

 joints. 



