2 76 LEPIDOPTERA. 



1. S. anomala, Hau\ — Expanse, male 1| to H inch, 

 female 1 1 to 1 \. Thorax and abdomen slender ; fore wings 

 not broad, shining slate-grey clouded with black-grey; upper 

 stigmata both flattened, the orbicular prostrate ; between 

 them is a grey-black costal cloud ; lines slender and in- 

 distinct. Hind wings large, white with a grey tinge. 



Antennas of the male slender, simple, cylindrical, hardly 

 perceptibly ciliated, black-brown; palpi small and short, 

 similarly coloured ; eyes large and prominent, naked, in- 

 tensely black ; head smooth, slate-black with a very slender 

 white line or bar across the neck ; collar dull black, rest of 

 thorax superficially greyish-white on a black ground, with a 

 knob or faint crest of deep black scales at the middle of the 

 hinder edge ; fascicles Avhite, very small ; abdomen slender, 

 smooth, brown, abundantly dusted with white scales, and 

 the basal segments obscurely barred with the same ; lateral 

 tufts small, anal tuft rather long, brownish-white. Fore 

 wings elongated, narrow at the base, broader behind ; costal 

 margin very faintly curved ; apex rounded ; hind margin 

 very gently rounded, but faintly hollowed above the anal 

 angle, which is prominent ; dorsal margin straight ; colour 

 shining pale slate-grey, much clouded along the costal and 

 hinder regions with blackish-grey ; first line unusually near 

 to the base, obscure, incomplete, consisting only of a once 

 or twice angulated grey-black streak ; second line rather 

 more distinct, very slender, black, undulating and much 

 indented ; before it is a partially parallel, undulating, slender 

 , grey-black shade separated by a faint stripe of silvery 

 whitish-grey ; subtermiual line an undulating series of silvery- 

 white clouds, from one or two of which, before the apex of 

 the wing, one or two black wedges point inwardly ; the space 

 before this line is dappled with silvery- white ; orbicular 

 stigma of an unusual shape, oblique, nearly prostrate, com- 

 pressed on each side into a long narrow oval, silvery-grey, 

 edged with black ; reniform stigma in its usual upright 

 position but narrow, silvery-gi'ey obscured with darker grey 



