120 NORTH AMERICAN BUTTERFLIES. 



GENUS XLIV. 



CHIONOBAS. BARREN-GROUND BUTTERFLIES. 



Size, medium. Color, either yellowish or dark, with- 

 out prominent markings. Palpi and body, very hairy. 

 Antennae, short, about half the length of the body, with 

 the club enlarging gradually. Fore wings, rather pointed 

 at apex; hind wdngs oval. Type C. semidea. (Plate IX, 2.) 



296. CHIONOBAS GIGAS Butl. 



Giant Butterfly. 

 Size, large. Above yellowish orange, margined all around both 

 wings with dusky. There is a patch of dusky below the central cell of 

 fore wings, and the hind wing is Hned with darker. There is a white- 

 pupiled black spot on hind wing near inner angle, and two in fore pair, 

 with a dot between them. Fig. 38, a. Beneath, paler on fore wing, mar- 

 gined with grayish, lined with darker. The two-pupiled spots are re- 

 peated, but the dot is absent. Hind wing whitish, lined and mottled 

 with brown and bluish, with the markings massed mto a swollen central 

 band, and nearer the base. Female, paler, with the patch on the fore 

 wings below cell absent ; there is a second dot below the lower pupiled 

 spot"^ Beneath, themiddle dot is present. Expands 2.40 to 2.50. Hab- 

 itat, Vancouvers Island. 



297. CHIONOBAS IDUNA Edw. 

 Iduna Butterfly. 

 Similar to C. gigas, but differs in bemg paler on both surfaces with 

 fewer markings on both surfaces of hind wing. Males have one spot 

 only on fore wing. Fig. 38, c, and none on hind pair, but this is pupiled. 

 Females have two spots on fore wings, the upper only pupiled, above 

 each is a dot ; a pupilless spot on hind wing. All three spots beneath 

 are pupiled. Expands 2.50 to 2.60. Habitat, Mendocino, California. 



298. CHOINOBAS CALIFORNICA Bd. 



Californian Barren-Ground Butterfly. 

 General coloration similar to C. gigas but differs in having one 

 pupiled eye spot on fore wings above, the lower being represented by a 

 pupilless dot. Hind wings with pupiled dot, on lower side the dot is ab- 

 sent but the other spots are present. The female has a dot below lower. 

 a spot which is larger than in the male, but without pupil, but both 



