36 NORTH AMERICAN BUTTERFLIES. 



64a. CoLLVs BOOTHii CHIONE Curt. is smaller than typical boothii 

 with marginal bordering absent, and the central spot on fore wing orange. 

 The border is present in the female, but is not as much extended. 



05 COLIAS EURYTHEME Bi>. 



Orange Bordered Butterfly. 



SizeofC. philodice, but the fore wings are more pointed, black bor- 

 dering wider, Fig. IG, i, and the color above deep orange. Beneath, 

 rather more orange, but with the markings the same as in philodice. 

 Expands 2.30 to 2.00. Habitat, Western States to the Pacific, .British 

 America; rarely in Ontario, Quebec, and occasionally in Mass. and the 

 Middle States. Occurs in July, August, and September and is the 

 summer form. 



Ariadne Edw. is a winter form, lemon yellow with the basal por- 

 tions of the wings more or less overwashed with orange, sometimes this 

 being confined to the fore wings only, and the size is usually smaller 

 Occurs from February to July, and in elevated and northern sections, 

 throughout the season. Those that 1 have seen taken in Mass, have 

 been of this form. Expands from 1.30 to 1.80. 



Keeavaydin Edw. is a winter form, dull orange, especially on upper 

 surface. Expands l.GOto 2.00. This form either follows ariadne in 

 April and JMay, or in some sections, notably Northern Colorado on the 

 mountains, in Oregon and Vancouver's Island, is the first and almost 

 only form throughout the season ; in other localities, kccwaydin gives 

 place to typical eurytheme, without being preceded by ariadne. There 

 are albinos in every form and numerous intergrades. 



G6. COLIAS PHILODICE Godt. 

 Bordered Yellow Butterfly 

 Fore wings without prominent angle on outer border. iSIale, sul- 

 phury yellow above, with both wings bordered on outer margin with dull 

 black which is encroached upon only slightly by yellow along the veins. 

 There is a black, yellow-centered spot at end of central cell of fore wings, 

 and two of orange on center of hind wings. The extreme base of both 

 wings is dusky and both pairs are narrowly bordered with rosey. Be- 

 neath, the ground color is tinged witli orange; the black border is absent, 

 but there is usually a more or less distinct, submarginal band of points, 

 rosy on hind wings, black on fore, and a spot of rose on upper border of 

 hind wings, where the central spots are ringed with rufous and silver- 

 centered. Female differs in having the bordering wider and enclosing 

 a line of yellow spots. Expands, 1.50 to 2.00. Habitat, Atlantic States 



