238 



48. Tail of upper mt'diau nervule of hind wings broad and bluntly rounded 

 at tip Eu^onia. 



48. Tail of upper median nervule of hind wings slender and pointed at 



tip Hypanartia. 



49. Fore wings at least twice as long as broad 54. 



49. Fore wings less than twice as long as broad 60. 



50. Second superior subcostal nervule of fore wings arising beyond the apex 



of the cell 51. 



50. Second superior subcostal nervule of fore wings arising at or before the 



tip of the cell 52. 



51. Outer margin of fore wings regularly convex Brenthis. 



51. Outer margin of fore wings sinuous Euptoieta. 



52. Basal half of hind wings covered beneath with frequent large light 



spots 53. 



52. Basal half of hind wings unspotted beneath or with only one or two faint 



light spots Seiunopsyche. 



53. Outer half of upper surface of hind wings with at least three series of 



black markings on a fulvous ground, the spots of the innermost usually 

 confluent Argyniiis. 



53. Outer half of upper surface of hind wings with two rows of pale mark- 



ings on a blackish ground, none of the spots confluent Speyeria. 



54. First subcostal nervule of fore wings emitted beyond the apex of the 



cell ; pulvilli and paronychia wanting Agraulis. 



54. First subcostal nervule of fore wings emitted at the end of the cell ; 



pulvilli and paronychia present Colaeiiis. 



55. Last superior subcostal nervule emitted about half way between the tip 



of the cell and the apex of the wing ; only two superior branches to 

 the subcostal nervure arising beyond the cell 56. 



55. Last superior subcostal nervule arising much more than half-way from 

 the tip of the cell to the apex of the wing; three superior subcostal 

 nervules arising far beyond the apex of the cell 57. 



50. Basal half of hind wings spotted above Lemonias. 



5G. Basal half of hind wings immaculate above Eiiphydryas. 



57. Under surface of hind wings with distinct white or yellow mesial and 

 submarginal bands, interrupted by the nervules, but never broken into 

 sagittate spots 58. 



57. Under surface of hind wings without distinct light colored mesial and 



submarginal bands ; or, if present, not interrupted by the nervules or 

 else wholly formed of sagittate spots. 60. 



58. Spots of the submarginal band of under surface of hind wings strongly 



arched on the inner edge ; mesial band traversed to a greater or less 



extent by dark transverse lines 59. 



58. Spots of the submarginal band of under surface of hind wings Avith a 

 straight or scarcely curved interior outline ; mesial band not transvcrsed 

 by transverse lines Thossalia. 



