AGRAULTS. 153 



Genus IV. AGRAULIS Boisd. 



Agraulis Boisd. Icon. Lip. et Chen. Am. Sept. 142. (1833). 

 Cethosia, Argynnis, God*. 

 Dione Hilbn. 



Head of moderate width, scaly, and slightly hairy on the forehead and ctoavii. 



Eyes slightly oval, rather prominent. 



Maxillce nearly as long as the body. 



Labial Palpi ascending, slightly divergent at the apex, clothed with scales, and scattered erect 

 hairs in front, with a dorsal tuft of rather long hairs near the apex of the second joint. First 

 joint very short, curved ; second elongate, swollen, especially beyond the middle ; third joint 

 short, ovate, or oval, about one fifth or one sixth the length of the second. 



Antennce about three fourths the length of the body, terminating in an obtuse, short, somewhat 

 pyriform club. « 



Thorax elongate, oval, scaly and hairy at the sides. 



Anterior Wings elongate, subtriangular ; the anterior margin slightly curved ; the apex rounded, 

 or subtruncate ; outer and inner of nearly equal length, scarcely two thirds the length of the 

 anterior ; the former sometimes considerably emarginate, the latter very slightly so. Costal 

 nervure stout, extending about two thirds the length of the wing. Subcostal nervure slender at 

 its origin, five-branched ; its first nervule thrown off beyond the cell ; the second nearer to the 

 third than to the first ; the third nearer to the fourth than to the second. Cell less than half 

 the length of the wing. Upper disco-cellular very short, scarcely perceptible. Middle 

 disco-cellular curved inwards, or almost angular ; the angle directed inwards. Lower 

 disco-cellular longer than the middle, slightly curved outwards, directed obliquely outwards to 

 the third median nervule which it joins considerably beyond its origin. Internal nervule 

 wanting. 



Posterior Wings with all the margins nearly equal ; the inner being rather the shortest ; the 

 anterior margin rounded ; outer margin sinuate-dentate, prolonged into a tooth at the 

 termination of the first median nervule; internal margin embracing the abdomen. Precostal 

 nervule simple. Cell open. Third median nervule much curved, so as to approach very closely 

 to the discoidal nervule. 



Anterior Legs of the male clothed with scales and a few slender hairs. Tibia slightly longer 

 than the femur. Tarsus about three fourths the length of the tibia, one-jointed, cylindric. 

 Anterior Legs of the female scaly, not longer than those of the male. Tibia shorter than the 



April, 1848. T f 



