liparidje:. 309 



which appears to be specifically distinct from that vmder 

 notice. 



Genus 4 PSILURA. 



Antennse short, curved back ; fore wings elongated, broad 

 and ample; hind wings hardly rounded; abdomen of the 

 male rather stout at the base, rapidly tapering ; of the female 

 stout, with the apex very sharply pointed. 



1. P. monacha, L. — Expanse of male 1^ to If inch, of 

 female If to 2^ inches. Fore wings white, with thick black 

 transverse lines abundantly broken into arches ; hind wings 

 whitish with spotted margin ; abdomen dull red. 



Antennee of the males prominent, rather curved back, 

 strongly pectinated with long solid curved teeth, of which the 

 two rows lie parallel and almost touching each other ; the shaft 

 dark grey, becoming whitish towards the tip, the long pec- 

 tinations pale grey. Head thickly covered with loose creamy- 

 white scales ; thorax white, with a black stripe across the 

 collar, three deep black spots placed triangularly on the back, 

 and a blackish stripe down each shoulder ; abdomen stout at 

 the base, but tapering rapidly, and slender in its hinder 

 portion ; pale crimson, shading off to whitish at the base, and 

 with a row of black spots down the middle of the back, 

 which spread into black bars on the hinder segments. Fore 

 wings broad, elongated, with rounded costa, blunt apex, hind 

 margin rounded and very oblique, and dorsal margin nearly 

 straight ; glossy white with abundant black arched markings 

 — a black blotch at the extreme base followed by three or 

 four small roundish black spots forming a sort of irregular 

 cross line ; first transverse line broad on the costa, repeatedly 

 and strongly angulated, second transverse line placed con- 

 siderably beyond the middle, curving in a wide sweep, but 

 angulated and scalloped so regularly as to form nearly a dozen 

 arched and pointed curves in its course ; outside it, toward 

 the hind margin, is a third line, undulating and similarly 



