EXPLANATION OF PLATE I. 



Fig. 1.— la, Adelocephala hicolor, larva, stage I, enlarged; Ih. tubercle )' of an aVjilominal .=egment; 1c. tubercle of 



infraspiracular series. 

 Fig. 2.— 2a, The same, stage II. J. Bridgham, del. The hair line indicates the length of the specimen figured. 

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