Fig. 190. 



Develoimient of Ctonmilonpin/i putchrum. A — Egg with fully devel- 

 oped embryo; B — Fir.st stuKe larva, anterior end; C — First stage larva 

 from intermediate host, four days ;iftcr experimental infection; D — Tail, 

 lateral view; E — First stage 1jiiv;i undergoing first molt; F — Second 

 stage larva; G — Third stage larva encysted in niuseulature of roach 

 [BUttella gerrnanirit) , H — Third stage, hiteial view; I — Posterior end 



showing four digltiform prncesKes ; J — Posterior end of male undergoing 

 third molt; K — Posterior end of female undergoing third molt, h— 

 Fourth stage larva, anterior end; M — Posterior part of male in fourth 

 molt; N — ^Region of vulva of larva undergoing fourtli molt. After 

 Alicata. 19^5. D.S.D.A. Tech. Bull. 489. 



283 



