Development and Metamorphosis 



FlG. 72. Developing stages, after hatching, of a locust, Melanoplus femur-rubrunti 

 a, just hatched, without wing-pads; b, after first moulting; c, after second moulting, 

 showing beginning wing-pads; d, after third moulting; e, after fourth moulting, 

 /, adult with fully developed wings. (After Emerton; younger stages enlarged; 

 adult stage, natural size.) 



FlG. 73. Stages in development of the wings of a locust. /., developing rudiment of 

 fore wing; h., developing rudiment of hind wing; w., wing-pad. (After Graber; 

 twice natural size.) 



