Plate XXIII. 



-fcM&L 







¥ V j! 



/y v I 



y 



/'//o/o. /-'. .V. Clark. 



Variation in the male genitalic clasps of Plebeios urgus (^sgon). 



A Natural History of the British Hatter flics, etc., 11)09. 



I To fact p. :'()'>. 



