Plio'.o by_ 



SiLVER-WASHKD FrITILLARY. 



[£. SU-p, F.L.S. 



The exampl.' photographed is a male, slightly enlarged, loshow the scent organs, or androconia, that arc clns 

 eross the middle of the fore-wings. The larger scales that cover these parts an- coiniected with -ipecial cavit 



which tliey appear to derive an odorous fluid whicli thev disperse. Diwr^e odours have been detected in the 



are believed to be employed for charming the females. 



torcd 

 ies in 

 male 



along the 

 the wing s 

 sof many 



ner\ures that 

 tructure from 

 pecies, which 



415 



