88 LEPIDOPTERA. 



longitudinal pearly stripe unbranched, but its end cut 

 off and drooping ; apex streaked with white. Hind wings 

 white. 



Antennae of the male simple, bronzy-brown ; palpi long, 

 slender, white above, dark brown beneath ; head and middle 

 of the thorax white ; shoulder lappets rich golden-brown ; 

 abdomen dusky white. Fore wings elongated, pointed at 

 the tip ; costa very gently arched ; apex acutely angulated, 

 rather produced ; hind margin just below it retuse, and thence 

 straightly oblique to a depression, then rounded out, and 

 curved at the anal angle ; colour rich golden yellow-brown ; 

 the longitudinal stripe pearly white, rather broad, unbranched, 

 the tip pointed and then cut off by an oblique streak from a 

 continuation which is narrower and somewhat drooping ; 

 along the dorsal margin is a similar but less definite stripe ; 

 beyond these stripes is an elbowed transverse line of golden- 

 brown bordered towai-d the costa on both sides with white ; 

 beyond it the apex is streaked with pearl}' white, sharply 

 edged by a black marginal line ; below are a few elongated 

 black marginal dots ; cilia shining white, shaded in the 

 middle with brilliant golden-brown. Hind wings ample, 

 broadly rounded behind ; white, faintly shaded with smoky 

 clouding, especially so toward the apex ; cilia white. Female 

 similar, sometimes rather paler. 



Underside of the fore wings shining smoky brown, with a 

 bionzy tinge, but whiter along the dorsal and hind margins. 

 Hind wings shining smoky white. 



On the wing in June and the early part of July. 



Larva scarcelj' known. I'rofessor Fernald sajs that when 

 hatched from the egg " the head is black, with the labrum 

 yellowish, the dorsal plate dark brown, the bodj- straw- 

 colour, with fine reddish blotches, giving it a pinkish cast. 

 When two weeks old the body becomes of a mottled dark 

 brown." Probably it feeds on the roots or stems of grasses 

 growing in rather damp ground. 



