314 I.KPIDOPTERA. 



Abundant throughout the United Kingdom to the Shetland 

 Isles ; also all over the Continent of Europe, and Northern 

 Africa ; and found in Bithynia. 



4. S. atomalis, DUd. — Expanse | to | inch. (15-18 mm.). 

 I<'oro wings narrower and of more even width than in the 

 last species, and markings rather similar but more com- 

 pressed ; first line with two attached black streaks, discal 

 spot filled with black-brown clouding ; hind wings smoky 

 brown or brownish-white. 



Antennae of the male simple, glossy, black-brown, faintly 

 dotted along the back with white ; labial palpi long, de- 

 pressed, thickly tufted with scales ; maxillary palpi visible, 

 grey-white, blackened at the sides ; head and thorax greyish- 

 white, dusted with black or brown; abdomen glossy whitish 

 drab. Fore wings narrow but not elongated, blunt behind ; 

 costa flatly arched ; apex very bluntly angulated ; hind 

 margin short, faintly rounded ; colour white, dusted all over 

 with grey or brown-grey ; first line black, erect, almost 

 straight, but minutely indented, shaded outwardly, united 

 with the orbicular, and almost with the claviform stigma, 

 both represented by short black streaks ; reniform stigma a 

 rather forked horizontal black streak clouded above to the 

 costa with black ; second line composed of black dusting, 

 elbowed above the middle and there indented; followed by 

 a black cloud from the costa, and another from the anal 

 angle, which almost unite in the hind-marginal area ; beyond 

 this is a marginal row of faint black dots ; cilia grey-brown. 

 Hind wings not very ample, flatly rounded behind, pale 

 smoky brown, rather darker toward the margin ; cilia 

 shining brownish-white. Female similar, but with the hind 

 wings darker. 



Underside of the fore wings smoky yellow-brown ; costa 

 ■and hind margin yellowish-white. Hind wings smoky 

 white. Body and legs yellowish-white. 



Variable in the ground colour from white to grey or grey- 



