HOW TO KNOW THE INSEaS 



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All Insect legs 

 have the same parts: 

 A coxa that rotates 

 In a cavity In the 

 thorax, a trochan- 

 ter (some Insects 

 have two trochan- 

 ters on each leg) , 

 the femur, which Is 

 the largest :?-egment 

 of the leg, a usu- 

 ally long and slim 

 tibia, and the tar- 

 sus or foot m.ade up 

 of two to five tarsal segments. The last tarsal segment usually 

 bears a pair of claws. In counting tarsal segments, these claws 

 should not be counted. The segments of all appendages are num- 

 bered from the attached end to the apical end. 



Figure 30, A typical insect leg showing the parts, 



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labi'Al palp 



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Figure 31. Dorsal vie'.v of a Beetle, liarpalus caliginosus (Fab.) showing parts < 



35 



