50 BULLETIN UNIVERSITY OF MONTANA. 



SUBFAMILY NYMPHALINAE. 



The Nymphs. 



Butteryfly The butterflies of this subfamily are mainly of moderate 

 or large size, though some of the genera contain quite small species. The 

 antennae are always more or less heavily clothed with scales, and are 

 usually as long as the abdomen, and in a few cases even longer. 



It is impossible to briefly describe these butterflies because they vary 

 so much. It is the largest of the subfamilies. 

 Key to Genera. 



1. Palpi nearly connivent, porrect 2. 



2. Eyes naked 3. 



Eyes hairy 13. 



3. Club of antennae short, ovoid, usually flattened in dry specimens 4. 



Club of antennae obconic or generally terminating in a knob. 12. 



4. Outer margin of fore wings sinnous. 



4a. Upper surface with eye spots, Euptoieta, P. 51 



Upper surface without eye spots, Speyeria, P. 52 



Outer margin of fore wings not sinnous 5. 



5. Large or medium size; cell in secondaries closed or open 6. 



Small cell in secondaries open 10. 



G. Color of both wings fulvous, with silver spots 7. 



Fore wings fulvous, hind wings black Semnopsyche. 



Color of both wings fulvous, without silver spots 9. 



7. Two innermost sub-costal nervules arise before or at the end of the 



cell 8. 



8. Branch to the median vein of the front wings Argynnis, P. 54 



No branch 10 the median vein of the front wings 9. 



9. Only one sub-costal nervule vein arises before or at the end of the cell 



Brenthis, P. G9 



10. General color fulvous or black Lemonias, P. 72 



General color lulvous, with a prominent black border; no silver 

 spots on the under side 11. 



11. Under side of hind wings brownish or brownish yellow 



Phyciodes, P. 78 



12. Hind wings not tailed; ground color black, fulvous or mahogany 



brown Basilarchia, P. i02 



13. A golden or silver spot on under side of hind wings Polygonia, P. 84 



No golden or silver spot on under side of hind wings 14. 



14. Apex of fore wings somewhat truncate, the angles rounded 



Vanessa, P. 98 

 Apex of fore wings distinctly truncate, the angles sharp 15. 



15. Ground color deep fulvous or brown; black bar across the cell of fore 



wing; black border or submarginal band Eugonia, P. 90 



Ground color maroon brown, out margin yellow, supplemented by a 

 row of blue spots Euvanessa, P. 96 



Ground color brown, submarginal band fulvous Aglais, P. 97 



