FAMILY ITI 



THE PIERIDS (Pi-er'ids) 

 Family Pieridae (Pi-er'i-dae) 



These butterflies are usually of medium size, but some of them 

 are small ; they are nearly always white, yellow, or orange, 

 and are usually marked with black. They are the most 

 abundant of all our but- 

 terflies, being common 

 every where in fields 

 and roads. Some spe- 

 cies are so abundant as 

 to be serious pests, the 

 larva; feeding on culti- 

 vated plants. 



The characteristic 

 features of the venation 

 of the wings are the 

 following (Fig. 27) : 

 vein M 2 of the fore 

 wings is more closely 

 connected with radius 

 than with cubitus, the 

 latter appearing to be 

 three-branched ; vein 

 M, of the fore wings FlG 2 ? _ —Venation of the wings of Pontia 

 coalesces with radius protodice. 



6 69 



