ACIDAL/W.-E—AC/DALrA. 35 



grey, or smoky-white, each with a central black dot, and 

 minutely streaked or dotted indications of two or three grey 

 transverse lines. 



Antennas of the male rather short and thick, notched and 

 coarsely ciliated; palpi slender and small, and with the face 

 black-brown ; tongue rather well developed ; head white 

 between the antennte, but behind this brown, as also is the 

 neck; thorax and abdomen dingy-white, dusted with grey 

 or grey-brown ; anal tuft short, white. Fore wings a 

 little elongated ; costa flatly arched ; apex bluntly angulated ; 

 hind margin very oblique and but little rounded ; dorsal 

 margin rather full, well ciliated ; colour dingy-white, 

 abundantly dusted with grey, or brownish-grey ; all the 

 markings extremely obscure ; first line an oblique indistinct 

 grey thread ; second line placed far back, and merely con- 

 sisting of a succession of cloudy grey dots or angles ; central 

 stripe or shade rather more noticeable, dark grey ; discal 

 spot a minute black dot ; the second line forms the inner 

 edge of a narrow transverse stripe of obscure smoky-grey 

 clouds, and the hind margin is similarly clouded ; cilia 

 greyish-white dappled with smoky-grey ; along their base is 

 an undulating grey line sometimes supplemented with 

 similar dots. Hind wings white, plentifully dusted with 

 grey ; central spot small, black ; before it is an obscure grey 

 transverse stripe, and beyond it a very irregular transverse 

 line of the same colour, followed by two very faint grey 

 stripes, the second lying along the hind margin ; cilia 

 greyish-white, dappled with grey. Female very similar. 



Underside of the fore wings pale greyish-brown, of the 

 hind wings greyish-white; the discal and central dots 

 obscurely visible ; the second line of the fore wings is 

 reproduced in a series of dots, which also is continued across 

 the hind wings. Body greyish-white ; legs very pale brown. 



Rather variable in the degree of grey dusting over all the 

 wings ; the typical markings being only distinctly noticeable 

 in specimens which, from their comparative scarcity, may be 



