EXPLANATION OF PLATE X. 



Fig. 1. — la, Cilheroiiia regalis, sta<;e I, freshly hatched, much enlargeil; l'<, prothoracic segment; Ic, section of 



eighth abdominal s^egment; Irf, tubercle of infrasiiiracular series. 

 Fk;. 2. — 2i(, CiDiiTiniid n-yalis, near end of stage I; 2b, subdorsal tubercle of first thiiracic segment; 2c, one of 



dorsal row, same segment. J. Bridgham del. 



170 



