EXPLANATIOIN^ OF PLATE XIII. 



Fig. 1. — 1((, Citlieroitia reijalis, stage IV, natural size; 16, spine of infraspiracular row; \c, a subdorsal spine of an 

 abdominal segment; lil, dorsal spine of same segment; le, anal leg; 1/, caudal horn. 



Fui. 2. — 2a, Cithevonia rcfialis, stage V and last, natural size (under fed); 2li-2(\ spines; 2e, a thoracic leg; 2/', seution 

 through third abdominal segment. 



Fig. 3. — Citheronia rctjallK, slightly larger than natural size; oa, dorsal horn; 36, subdor.sal horn. (Not a satisfartory 

 figure. ) 

 J. Bridgham, del. 



176 



