Explanation of Plate E. 



Plume-scales of Pierinab. 



Fig. 1. Teracolus phlegyas. 



2. „ chrysonome. 



3. „ eris. 



4. Ptychopteryx (Eronia) 



LUCASII. 



5. Nepheronia phocaea. 



Fig. 6. Leuceronia pharis. 



7. Eronia cleodora. 



8. Edchloe eupheno. 



9. Daptonura lycimnia. 

 10. pinacopteryx liliana. 



The scales represented in this plate are drawn only in outline, and 

 are magnified about 260 diameters. 



Tlie figures show the large size of the disc in the purple-tipjied 

 and protomedia groups of Teracolus ; the curiously attenuated scent- 

 scale of T. eris; the differences characterising the three kinds of 

 "Eronia"; the remarkable and unique scale of '■'■Ptychopteryx" 

 (or "J5ro?im") lucasii; the peculiar hair-like plumule of Euchloe 

 eupheno ; the still more hair-like scent scales of Daptonura ; and 

 the flask-shaped lamina with large oval or figure-of-eiglit-shaped 

 disc found in Pinacopteryx liliana. 



