42 



Development and Metamorphosis 



Fig. 72. — Developing stages, after hatching, of a locust, Melannplus jemur-ruhrunit 

 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.) 



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

 fore wing; h., developing rudiment of hind wing; iu., wing-pad. (.'Vfter Graber; 

 twice natural size.) 



