FAMIL Y BR USH-FOOTED B UTTERFLIES. 1 1 1 



slender yellow stripe on the side, the lateral fold also yellow ; no 

 distinctly constricted neck, the tail with a slender bat short fork. 

 Length 1^ inches. 



Chrysalis. — Pea-green, mottled with paler green, the ridges 

 pale straw-yellow, the surface feebly shagreened ; head rectangu- 

 late as viewed from the side. Length f inch. 



The eggs, which are short barrel-shaj^ed bttt tumid, 

 with about twenty-five vertical ribs, and honej-yellow, 

 afterwards pinkish, are laid singly and hatch in from twenty 

 to twenty-seven days. The caterpillars do not devour the 

 egg-shell, but go into hibernation at once upon escape; in 

 the spring they feed upon grasses, but are lethargic and 

 mature slowly, not reachino; the chrysalis state until July; 

 this lasts about a fortnight. The butterfly is limited in its 

 northward extension by about the line of the annual 

 isotherm of 45^ F., being found in the southern half of 

 Xew England and westward to Xebraska. It flies in open 

 woods and on the outskirts of shrubbery, is single-brooded, 

 appears about the end of the first week in July and flies 

 into September. 



CERCYONIS NEPHELE— THE DULL-EYED GRAYLING. 



(Hipparchia nephele, Erebia nephele, Satyrus nephele, Minois 



nephele.) 



Butterfly. — Differs principally from the preceding species in 

 the total absence of the yellow baud of the fore wings, or its sub- 

 stitution by a faint pallid cloud. Expanse 2-*2^ inches. 



Caterpillar. — Head emerald -green, papillate, with no summit 

 tubercles. Body naked, finely pilose from minute papillae, dull 

 yellow-green, the sides slightly darker, with a yellow stripe along 

 lateral fold ; no distinctly constricted neck, the tail with a slender 

 but short fork. Length IJ inches. 



Chrysalis. — Yellow-green with white granulations, the ridges 

 cream-white ; head rectaugulate as yiewed from the side. Length 

 f inch. 



The eofs^s, which are like those of C. alope, are laid 

 singly and hatch in about twenty-eight days. The cater- 



