38 KORTH AMERICAN BUTTERFLIES. 



70. COLIAS OCCIDENTALIS Scud. 



Western Bordered Butterfly. 

 Size and general form of C. philodice but diifers in having the black 

 border on fore mug of male, projected more toAvard the base, and is not 

 cut at all by the yellow veins ; the central spot on fore wing is barely 

 indicated, Fig. IG, d, and that on the hind wing is single ; there are no 

 sub-marginal spots. The female above differs even more, there being 

 no bordering whatever on the hind wings and very little on the fore, 

 Fig. 10, e. Beneath, the color in both sexes is very pale and the spot 

 on hind wings is single, while that on the fore wing is barely indicated. 

 Expands, 2.00 to 2.40. Habitat, Fort Simpson, British America, and 

 Vancouver's Island. Occurs in July. 



71. COLIAS CHRYSOMELAS II. Edw. 

 Golden Bordered Butterfly. 

 Similar to C. occidentalis but differs in having marginal border 

 wider, it being equal in Avidth on both wings, and always cut by the 

 yellow veins. Central spot on fore wings only slightly indicated and 

 that on the hind wing beneath is single. The female has a more decid- 

 ed border to wings. Expands 2.00 to 2Sj(). Habitat, ^Northern Cali- 

 fornia. 



72. COLIAS CHRISTINA Edw. 

 Christine's Bordered Butterfly. 



Allied to C. eury theme but male differs in having the border nar- 

 rower, and the orange confined to the outer half of the intervening space. 

 The central spot on fore wing is smaller, and that on hind wing is sin- 

 gle on both surfaces. The female is greenish yellow above, without 

 markings, excepting the single, central spot on both pairs of wings. Be- 

 neath, hind wings greenish, fore Avings yellow, greenish at apex, and 

 slightly orange tinted on basal third. Expands 2.10 to 2.50. Habitat, 

 Slave River, south. Red Deer River, and Mount Judith, Montana. Oc- 

 curs in July. Fig. 10, g, fore wing. 



72a. CoLiAS CHRISTINA astraea EdAV. differs from typical C. Chris- 

 tina in having the bordering Avider, and the color yclloAver, being only 

 slightly tinted Avith orange. Habitat, Yell'OAvstone Lake. 



73. COLIAS ALEXANDRIA Edw, 

 Alexandria Bordered Butterfly. 

 Male of about the size and form of C. philodice but differs in hav- 



