EASTERN UNITED STATES. 337 



the first three, the fourth with its inner side in the same 

 line ; the sixth and seventh in the median interspaces, 

 much larger than the others, the outer sides excavate ; 

 the eighth less distinct, and somewhat hour-glass-shaped. 

 The hind wings have a band through the middle, as in 

 the males, but the spots are smaller and the spot in the 

 cell is absent. 



Under side as in the male. Body concolorous with 

 the wings above, under side pale yellow. 



Larva and food-plant unknown. 



Massachusetts to Nebraska ; New Jersey. 



162. PAMPHILA DION, Edw. 



Expanse of wings from 1.4 to 1.6 inches. 



Male. Upper surface almost a copy of P. Pontiae, 

 but differs in the space above the cell of the fore wings 

 being more dusky, less washed with yellow, the base a 

 little more dusky, the cross-bar at the end of the cell 

 more distinct, the space beyond the cell as far as the yel- 

 low extends being nearly filled with clear yellow, while 

 in Pontiae the upper half is dusky and the stigma is 

 narrower, and there is more yellow below the submedian 

 vein. The stigma is oblique, velvety black, divided in 

 the middle into two elliptical portions, the upper slightly 

 the longer, of medium width, the two parts not touching 

 each other, there being a more distinct separation than in 

 Pontiae. The area on both sides of the stigma is clear 

 yellow, of about the same shade as in Pontiae. The 

 hind wings have the yellow band or area broader than 

 in Pontiae, the first spot less prominent, the second 

 longer, reaching well into the cell, without any dividing 

 cross or longitudinal marks, the remaining three spots 



p w 29 



