Plate XVII. 



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Fig. 1. — Larva of Polyommatus icarus, last instar, showing honey-gland x 100. 



immw. 





2 Photo. F. N. Clark. 



Fig. 2. — Larva of Polyommatus icarus, last instar, 2nd pair of prolegs x 100. 

 Larval details of Polyommatus icarus, last instar. 

 A Natural History of the British Butterflies, etc., 1910. 



[To face p. 200.] 



