28 NOKTII AMERICAN BUTTERFLIES. 



48. ANTHOCHARIS THOOSA Scud. 

 Scudder's Marbled Butterfly. 

 White, with large, orange, apical patch which has a wide black bor- 

 dering within it, extending from the outer to upper margin, and of equal 

 width but with the edges roughened ; outwardly it is onl}^ narrowly bor- 

 dered with dusky. Ilind wings unmarked, excepting a few clusters of 

 dusky scales along veins. Beneath, the orange patch is restricted and 

 yellowish, and the hind wings are marbled, much as in A. julia. Fig. 

 14, f. Expands 1.25 to 1.40. Habitat, Utah and Arizona. 



49. ANTHOCHARIS SARA Bd. 



Sara's Marbled Butterfly. 



Larger than A. genutia, with the angle of outer border of fore wings 

 only slightly indicated. Differs in having the orange at apex of upper 

 side of fore wing of male, nearly surrounded by a black border, Fig. 14^ 

 e, and the orange is seen mure faintly below but without the black. The 

 female has the orange on both surfaces but paler, and the black border 

 is represented on the inside, by a bar at end of central cell ; the apex is 

 broken by three or four yellow spots. Expands l.()0 to 2.00. Habitat, 

 California. Occurs from April until August. 



Reakirtli Edw. is the winter form, that has the black bordering 

 within and without the orange on apex of fore wings, of male above, not 

 only deeper in shade, but also much broader. The outer margin of the 

 lower wings has a decided border of spots, instead of mere indications, 

 and generally the marblings of lower side of hind wings, are coarser. 

 The female differs in this respect, and in having the spot at end of cen- 

 tral cell, crossing the vein and reaching upper border. Expands 1.30 

 to l.GO. Habitat, California. Occurs in March, April, and May. 



50. ANTHOCHARIS STELLA Edw. 

 Stella's Marbled Butterfly. 

 Differs from A. sara in having the ground color rather brighter or 

 more yellowish, and the dark line below orange apical patch narrower 

 and broken through in the middle ; this does not quite reach the upper 

 border of the wing. At tip of wing and on outer margin, the black bor- 

 dering is narrow. Hind wings, unmarked. Beneath, the orange is nar- 

 rower and rather more widely bordered with dark. Hind wings, quite 

 finely marbled with grayish green. Female, with ground color deeper 

 and dark markings more extended ; the orange patch is only about one 

 half as wide and the dark baud below it is narrower, with a scries of 



