THE MEADOW-BROWNS 



the Rocky Mountains are the first two described below and 

 intergrades between these. Expanse two to two and one-half 

 inches. 



(i) The Blue-eyed Grayling, Cercyonis alope alope. — The 

 upper surface of the wings is dark brown ; on the outer half 

 of the fore wings there is a distinct yellow band, wnich ex- 

 tends from vein R 6 to the anal vein ; in this band there are 

 two dark spots with a white or bluish centre. The hind 

 wing usually bears a small spot in cell Cu ]7 which is narrowly 

 rimmed with yellowish and has a minute white pupil. The 

 lower surface of the hind wings is either with or without eye- 

 like spots, usually with six of them. 



This is a Southern form, which extends into the southern 

 portions of New England, New York, Michigan, Wisconsin, 

 Iowa, and Nebraska ; and into the northern portions of Illi- 

 nois, Indiana, and Ohio. 



(2) The Dull-eyed Grayling, Cercyonis alope nephele. — In 

 this form the yellow band of the fore wings is either absent or 

 represented by a faint pallid cloud. In other respects it closely 

 resembles the blue-eyed grayling. 



This is a Northern form; the southern limits of its range 

 overlaps the northern limits of the range of the blue-eyed 

 grayling as given above. 



(3) Hybrid Graylings. — In that narrow belt where the 

 ranges of the two forms of Cercyonis alope described above 

 overlap, all variations between the two types occur. In most 

 of these intergrades the eye-spots of the upper sides of the 

 fore wings are surrounded by yellowish rings, or each is on a 

 yellowish patch. 



(4) The Sea-coast Graylings {Cercyonis alope maritima). 

 ■ — In a narrow belt along the Atlantic coast there occurs a 



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