232 LEPIDOPTERA. 



1. CE. quadra, L. — Expanse, H to 2 inches. Fore wiDgs 

 of the male grey, spotless, with the base yellow, edged with 

 blue-black ; of the female yellow, with two opposite black 

 spots ; hind wings of both pale yellow. 



Antennas slender in the male, ciliated with short, slender 

 bristles, blackish ; palpi and face blue-black ; upper part of 

 the head orange ; thorax rich ochreous or orange-yellow ; 

 abdomen brown, thinly covered with yellowish-white scales 

 toward the base, but yellower behind ; anal tuft yellow, 

 mixed with smoky-grey. Fore wings long, narrow at the 

 base, rapidly widening, but from the middle almost of even 

 width, yet rather tending to become narrower towards the 

 hind margin ; costal margin gently and regularly curved ; 

 apex very blunt ; hind margin oblique and slightly rounded ; 

 dorsal margin strongly rounded from the base, then nearly 

 straight ; shining slate-grey with a faint intermixture of 

 glistening yellow, usually having a broad ill-defined darker 

 grey shade near the hind margin ; base deep yellow, except 

 at the costa, which is sharply blue-black for about a quarter 

 of an inch ; cilia grey. Hind wings very ample, with the 

 apex bluntly rounded, and below it the hind margin for some 

 distance almost straight, thence rounded ; pale yellow, shaded 

 with pale grey along the costal region ; cilia yellowish. 

 Female larger, with simple antenna, and rather different in 

 the shape of the fore wings, the costa being slightly bent 

 beyond the middle, where the wings are broadest ; bright 

 light golden-yellow, with a conspicuous blue-black or smoky- 

 black spot on the costa just beyond the middle, and another, 

 rather smaller, near the middle of the dorsal margin. Hind 

 wings pale yellow at the base, shading into golden-yellow at 

 the hind margin ; cilia bright yellow ; head and thorax also 

 yellow. Underside of all the wings in the male pale yellew ; 

 the costa of the fore wings broadly clouded from the base 

 with smoky-black, and the remainder of the fore wings and 

 costal region of the hind clouded with pale purplish-grey ; 



