310 LEPIDOPTERA. 



light grey with black markings, the first line produced along 

 the costa and repeatedly indented ; discal spot 8-shaped. 

 Hind wings smoky white. 



Antenna) of the male rather thick, simple, shining blackish- 

 brown, faintly barred with white ; labial palpi somewhat 

 long, drooping, black-brown, pale grey inside ; maxillary 

 palpi small, pale grey ; head and thorax greyish-white, 

 dusted with black ; abdomen silvery greyish-white. Fore 

 wings rather broad, somewhat ovate or bell-shaped, the costa 

 much arched ; apex squarely angulated ; hind margin almost 

 straight and scarcely oblique ; colour pale slate-grey, or 

 greyish-white ; first line very conspicuous, deep black, 

 repeatedly indented but erect, running a little toward the 

 base on the costal margin ; to it is united a small short 

 black claviform stigma, and also, by a cloudy loop, the dot 

 which represents the orbicular stigma ; reniform stigma 

 formed like an 8 or the letter X with attached faint grey 

 rings ; second line slender, dark grey, rather direct but bent 

 above the middle into a decided angle where it turns back to 

 the costa ; it is edged outwardl}' by a grey-white line ; out- 

 side this is a series of grey-black clouds ; hind margin dotted 

 .with black, the largest dots in the middle ; cilia white dotted 

 with grey clouds. Hind wings ample, fully rounded behind, 

 shining smoky white, clear and somewhat transparent ; cilia 

 white. Female very similar but a little larger, and some- 

 times with the markings intensified. 



Underside of the fore wings shining smoky grey ; the costa 

 paler. Hind wings also shining, smoky white. Body and 

 legs smoky greyish-white. 



Variable in the ground colour from white to dark smoky 

 grey ; in the intensity of colour of the markings, from grey- 

 black to deep velvety black ; and in the latter case, often by 

 the extension of the black colour over the wings and con- 

 sequent sufi'usion of the markings. In the collection of Mr. 

 B. A. Bower, along with many specimens which are much 

 blackened, is one in which this blackening extends only to 



