Plate XVII. 



1. Special prothoracic hair and hair-bask of larva of Cupido minimus 

 compared with ordinary hairs, last instar x 2-50. 



Photo. F. N. Clark. 



2. Skin-sculpture round base of special prothoracic iiati: of larva of 

 cupido minimus, last instar x 250. 



Larval structure of Cupido minimus. 



A Natural History of the British Butterflies, etc., 1909. [To face p. 124. 



