EXPLANATION OF PLATE XIIL 



Fig. 1. — 1(1, Cithcronia regalis, stage IV, natural size; 16, spine of int'raspiracular row; Ic, a subdorsal spine of an 

 abdominal segnaent; 1»/, dorsal spine of same segment; li% anal leg; 1^", caudal horn. 



Fig. 2. — 2a, Citheronia regalh, stage V and last, natural size (under fed); 2'i-2f, spines; 2c, a tlioraeio leg; 2/", section 

 through third abdominal segment. 



Fig. :;. — Citheronia r<-(/(dix, slightly larger than natural size; o«, dorsal horn; ob, subdorsal horn. (Not a satisfactory 

 (igure. ) 

 J. Bridfiham, del. 



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