190 



Explanation of Plate. 



0. duplex. It is a close ally of 0. puerta, Westw., from 

 Costa Rica, Colombia and Venezuela, but differs from it 

 chiefly in the very strongly dentate outer margin of the 

 band on the secondaries, and in the large size of the spots 

 on both wings. There are also two males of this insect 

 in the British Museum, both from Bolivia. 



Explanation of Plate X. 



