BUTTERFLIES OF MONTANA. 121 



with a shade of brown, head and abdomen witli still more brown. Larval 

 period, eleven to twenty days, pupal period about eleven days. 



Distribution It is found in the prairie lands of North Dakota, and the 

 parts of Montana and Canada adjacent. It is not uncommon about Cal- 

 gary. Wiley has collected many specimens around Miles City, and in 

 1894 sent eggs to Edwards to be hatched. Cooley has collected it at 

 Bozeman. Taken by Coubeaux in Bear Paw Mountains. 



Genus NEOMINOIS, Scudder. 

 RIDINGS SATYR, Neominois ridingsii, Edwards. 



Fig. 92B. Neominois ridingsii, natural size. 



Butterfly Expanse, Male, 1.6 to 1.8 inches, Female, 1.8 to 2 inches. 



Upper side dusky gray-brown, pale over the basal areas, beyond to 

 margin dark; a common extra-discal series of buff spots, on primaries 

 separated in the lower discoidal interspace; the four above this con- 

 fluent, their outer extremities lanceolate, and being on the upper dis- 

 coidal interspace a white pupiled black ocellus; the fifth spot is long, 

 oval, narrower than the interspace the upper median; the sixth is sub- 

 oval, broad, and carries a second ocellus, usually equal to, but sometimes 

 a little smaller than the other; the next two spots are sometimes com- 

 pletely confluent, and are about half the length of the sixth; on second- 

 aries the spots from a continuous band of nearly even width, the upper 

 three more or less incised on the basal side; the outer ends serrate, or 

 partly lanceolate; a small black patch near the outer edge of the spot 

 in lower median interspace; occasionally a minute pupiled ocellus is 

 present on the lower sub-costal interspace of primaries, outside the line 

 of the principal ocelli; fringes fuscous, yellowish at the tip of the ner- 

 vules. 



Under side paler; the cell of primaries and the basal and marginal 

 areas of both wings covered with fine abbreviated dark streaks; the 

 spots and ocelli of primaries repeated; the buff band of secondaries rarely 

 clearly repeated, but the position of the outer edge of it is indicated 

 by a black serrated line; the marginal inscriptions usually extend across 

 this line well toward the mesial band; this band is closely as in the 

 allied genus Oeneas, light within ,dark near and along both edges; the 

 elbow without rectangular on the lower discoidal interspace, with equal 

 serrations from the angle to costa (though sometimes the lower two are 

 much prolonged, acuminate) ; on the basal side a small angular sinus 

 on the sub-costal nervure, and a large rectangular, or sometimes rounded, 

 projection on the median. 



