FIELD BOOK OF INSECTS. 



the male is plain yellow above, and the female has a row 

 of dark brown spots along the outer margin of the front 

 wings and a somewhat similar spot in the center of these 

 wings. The larva feeds on Cassia and other legumes. 



The Little Sulphur may be recognized 

 Teriaslisa by means Q plate XXXV; the female is 



paler on the upper side than the male and the black 

 border of the hind wing is much broken or nearly ab- 

 sent. The larva feeds on Cassia and there are three 

 broods, but we are not sure how our northern winters 

 are passed. My guess would be that they are passed 

 in the South, after the fashion of Anosia plexippus. In 

 this connection it should be said that "clouds" of the 

 autumn brood of adults have been noted as landing on 

 Bermuda from the northwest, having covered six hundred 

 miles of ocean. Albinic individuals are sometimes found. 



Terias nicippe is much like lisa but somewhat larger; 

 the front wings of both sexes are tinged with orange and 

 the hind wings, especially of the female, have short, but 

 rather broad, cross-spots of iron-rust color. The larval 

 food and (?) life history are the same as lisa. In the 

 Gulf States there are three rather common species (elathea, 

 delia, and jucunda) which cannot be differentiated in a 

 few words; they may be known collectively by being 

 something like lisa but with a conspicuous dark band 

 along the hind margin of the front wings, upper surface. 

 This generalization, however, includes Nathalis iole, 

 which occurs from southern Indiana to Colorado and 

 northern Mexico. Its small size (wing expanse of not over 

 1.25 inches) helps one to "spot" it. 



The Sulphurs and Whites are classed together as the 

 Pierinae. The Swallow-tails (Papilio) and the western 

 genus Parnassius make up the subfamily Papilioninas. 



This is the Giant Swallow-tail. The 



Papiho adult shown on Plate I is smaller and 



cresphontes 



somewhat duller than the average. I he 



form of all of the stages shown is typical of Papilios. In 

 the South it is called Orange Dog because its larva feeds 



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