EASTERN UNITED STATES. 133 



on each segment. Beneath these lines, on joints 5 to 10, 

 is a black dot to each joint. Under side, feet and legs 

 pale green ; head ovoid, pale or yellow green. 



The chrysalis has the anterior part and the wing-cases 

 dark green, the abdomen yellow-green. There is a light 

 buff stripe on each side of the abdomen from the end 

 of the wing-cases to the extremity, and on the ventral 

 side of this stripe a demi-band of dark brown. Between 

 the stripe and the bend are three black dots, one to each 

 segment, with a submarginal row of black dots on the 

 wing-cases. 



Clover forms the food-plant of this species. 



Western States to the Pacific; occasionally in the 

 Middle States to Massachusetts. 



25. Colias Philodice, Godt. 



Expanse of wings from 1.75 to 2.5 inches. 



Upper surface of wings sulphur-yellow, with a broad 

 terminal border of black, broader on the fore wings of 

 the female than on those of the male, and containing a 

 submarginal row of yellow spots which are absent in the 

 male. Discal dot of fore wings black, elliptical in the 

 males, oval in the females ; on the hind wings orange, 

 usually with a smaller accompanying dot. The antennae, 

 costa, collar, and fringes are roseate. 



Under side about the same color as above, but sprinkled 

 more or less with brown scales, except from the cell to 

 the posterior margin of the fore wing, the winter forms 

 more heavily sprinkled than the summer. Discal spots 

 silvery in the centre, the anterior annulate with black, 

 the posterior brown set in a pinkish-brown patch. There 

 is a submarginal row of dots, the last three on the fore 



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