278 LEPIDOPTERA. 



brown between tlie zio;zao; band and the base : and between 

 the same band and the margin three black spots, behind the 

 middle one of which is a rust-red spot with a black centre. 

 The wings expand from l^jj to li'o inch. This pretty species 

 is found on the mouse-ear (^G-naplialium plantagineum^ in 

 May, and on the flowers of the spearmint in August. 



Some kinds of Thecla have the hind edges of the wino;s 

 notched, but not tailed. This is the case with the Niphon 

 107. butterfly (^Thecla Niphon of Hlib- 



ner), (Fig. 107,) which has been 

 taken at Sweet Auburn early in 

 JNIay. As in the Auburn butterfly, 

 the wings are deep brown above, 

 with a large rusty space on each ; 

 the notches on their edo-es are white, and the teeth between 

 them are rounded and of a black color ; on the under side 

 the wings are light brown, with dark brown wavy and zigzag 

 lines, two of which are bordered on one side with white. 

 The wings expand li inch. 



The Mopsus butterfly ( Thecla 3Iopsus of Hlibner) differs 

 from all the foreiroino; in havino- the hind wino-s entire and 

 not tailed ; but the inner angle projects a little, as it does in 

 some species of Lyccena. In form, and in the color and 

 arrangement of the spots on the under side of the wings, 

 it approaches to the Phla'as and Americana; but in these 

 species the eyes are not downy, and the males have not the 

 oval opaque spot near the fi'ont margin of the anterior "wings. 

 The Mopsus butterfly is dark brown above, with a row of 

 seven or eight deep orange-colored spots near the margin of 

 the hind wings, larger and much more conspicuous on the 

 under than on the upper side. The wings beneath are light 

 brown, with a row of deep orange or vermilion-colored spots 

 near the hind margins of all the wings, an inner and more 

 irregular row of small black spots encircled with white on 

 the same, and two moi-e similar spots close together on the 

 middle of the hind wings. It expands li"^^ inch. My only 



