264 ON NEW SOUTH-AMERICAN KHOPALOCEKA. 



extending to tlie base nor distally beyond the streak in 6 ; a small 

 triangular brown spot in 5 in the distal area. Hind icing with a 

 yellow-brown costal edge and apical snfFnsion ; a series of yellow- 

 brown subterminal spots, well-defined proximally, but distally 

 sufiused ; outer margin narrowly edged with yellow-brown. 

 Underside marked as in the d , but the specimen being rubbed 

 we cannot distinguish any difi'erences in colour. 



Head and antennae missing. Thorax and abdomen black-brown. 



Length of fore wing 41 mm. 



The completely difierent pattern presented by the female of 

 this insect suggests some sort of mimetic resemblance. It pre- 

 sents a great similarity to the -pattern of many species of the 

 Brassolid genus 02)sij3hanes, four species of which, with brown 

 bands on the fore wing, are recorded from Ecuador and Peru. 

 Mr. W. J. Kaye informs us that Opsiphanes fiy round the houses 

 at dusk, and this observation, coupled with the fact that the 

 female Polygrapha was found in a water-pot near a house, points 

 to the possibility of the two insects flying in company. 



