268 LEPIDOPTERA. 



Larvae cylindrical, downy, with divided head, and the 

 following segments so contracted as to seem to fonn a 

 neck. 



PuPiE rounded, in a slight cocoon. 



1. S. Alveolus, Huh. malvse, Z., Stand. Cat. Expanse 

 I to 1 inch. Greyish black with white spots on all the wings ; 

 cilia black and white. 



Fore wings with the costal margin folded back in a very 

 narrow strip from the base to the middle ; nearly triangular; 

 hind margin, with that of hind wings, rounded. All the 

 wings blackish, suffused towards the base, and along the 

 nervures, with coarse ashy-grey hairs. Fore wings with two 

 or three somewhat squared white spots, forming a transverse 

 row, before the middle ; and beyond, seven similar spots form- 

 ing a complete, angulated, transverse series. Between these 

 rows is a slender perpendicular white streak at the apex of 

 the discal cell ; and, beyond the second, two or three small 

 white dots lie near the anal angle. Costal margin with four 

 or five very slightly oblique white streaks beyond the middle. 

 Hind wings with a transverse row of white spots in the 

 middle, the central spot the largest, squared and indented ; 

 this is followed by a second row of considerably smaller, 

 similar spots before the hind margin. Cilia of all the wings 

 broadly white, chequered with regular black dashes. Sexes 

 similar. 



Underside of the fore wings blackish shaded with grey, 

 with the costal margin whitish grey, the spots as on the 

 upper side, but larger, more squared, and more united into 

 transverse graded stripes ; and with white dashes running 

 inward from the cilia. Of hind wings dark ochreous tinged 

 with grey or clouded with olive-grey ; with spots as on the 

 upper side, but much larger ; and with two or three additional 

 small spots near the base. Cilia of all the wings as above, 

 except that the dark dashes are browner. 



Variable in the ground colour, greyer or blacker in accoi'd- 



