KEY TO THE GROUPS-CHRYSALIS, 53 



Key to the Groups, based ox the Chrysalis. 



A'. More or less augulated or with j^i'ojectiiig shoulders, 



or if smooth and rounded, then very 

 short and stout, the thoracic spiracle 

 inconspicuous. Not concealed in a 

 cocoon. 

 B\ Hanging by the tail only, or else with no hooks at 



the tail to hang by. 

 (Family Brush-footed Butterflies.) 

 C\ AVith generally numerous conspicuous prominences. 



(Subfamily Nymj^hs.) 

 D'. Head forming a single mass w4th the thorax. 



(Tribe Crescent-Spots.) 

 q\ a tubercle on second abdominal segment just 

 above the spiracle-line. 

 i\ Tubercles of eighth abdominal segment 

 nearly as prominent as on the pre- 

 ceding segment 2. Eupliydryas, 



f\ No distinct tubercles, but only dark sjDots 

 on eighth abdominal segment. 



3. Cindidia. 



e\ No tubercle just above spiracle-line on second 



abdominal segment. 



f '. No distinct ridge uniting tubercles of fourth 



abdominal segment. .4. Cliaridryas. 



f. A distinct ridge uniting tubercles of fourth 



abdominal segment. . .5. Phyciodes. 



D'. Head projecting independently beyond the 



thorax. 



