FAMILY BRUSH-FOOTED BUTTERFLIES. 105 



outside to feed on neighboring leaves, generally toward 

 evening. The chrysalis hangs from seven to twenty days. 

 The butterfly is rapid in flight and shy of approach ; it is 

 found in the Mississippi Valley from southern Illinois 

 southward, and west to the Great Plains. The butterfly 

 hibernates early in November, and there are said to be two 

 broods annually, the eggs of the first brood being laid 

 from the middle, of May on, of the second apparently in 

 July. 



There is said to be " a decided seasonal dimorphism in 

 the two broods of the females." 



18. Genus Chlokippe. 



CHLORIPPE CLYTON— THE TAWNY EMPEROR. 



(Apatiira clyton, Doxocopa herse, Apatura lierse, Apatiira proserpina.) 



Butterfly. — Upper surface of wings dark tawny marked with 

 blackish brown, the outer half of the fore wings mostly dark, so 

 that the tawny there appears only in two sinuous rows of round- 

 ish spots; while the hind wings are wholly tawny except a dark 

 outer margin and a sinuous premarginal row of round black 

 spots. Under surface light brown, with pallid and blackish 

 transverse markings and, on the hind wings only, a sinuous pre- 

 marginal series of small, nearly round, blue-pupilled ocelli. Ex- 

 panse 2-3 inches. 



Caterpillar. — Head pale green, with two white facial stripes, 

 lateral spines, and the summits crowned by a long spine- like 

 tubercle, having numerous long spinules throughout. Body 

 naked, minutely papillate throughout, striped in green, yellow, 

 and white in continuous and equal bands from head to the forked 

 tail. Length 1^ inches. 



Chrysalis. — Pale grass-green, with a yellow stripe marking 

 the dorsal crest which extends the length of the body, and faint 

 oblique stripes on the abdominal segments. Length nearly 1 

 inch. 



The eggs, which are subglobular, with about twenty 

 slight vertical ribs, and yellowish white, are laid on the 



