Plate XL 



i 



Photo. F. X. Clark. 



Larval structure of Cyaniris semiargus. 



1. Prothoracic plate, penultimate instarxIoO. 



2. Prothoracic plate, penultimate instar (different specimen), showing 

 hair-bases well (those on disc of prothoracic plate approxi- 

 mating in structure to those of special hairs at angles of 



PLATE X 100. 



A Natural History of the British Butterflies, etc., 1909. 



[To face p. X92.] 



