4 LEPIDOPTERA. 



aud the second slightly so, piirple-browu ; palpi slender, 

 curled up close to the face, brown, with the front white •,. 

 head and thorax leaden-brown ; abdomen leaden-grej'. 

 Fore wings narrow, especially so at the base ; costa arched; 

 apex bluntly angulated ; hind margin rounded, oblique ; 

 dorsal margin rather concave ; colour shining dark purple : 

 lirst line oblique, white, and usually the preceding basal 

 area is more or less tinged with white ; second line oblique 

 in the opposite direction, slender, rippled, white ; before the 

 hind margin is a faint line of white dusting ; cilia shining 

 smoky-grey. Hind wings not broad ; flatly rounded behind ; 

 shining smokj'-grey ; cilia of the same colour. Female 

 similar, but with thread-like antennae. 



Underside very glossy ; fore wings smoky -grey with a 

 faint purplish tinge toward the costa ; hind wings as on the 

 upper side. Body dull brown. 



A very delicate-looking little species ! 



On the wing from the end of June till August. 



L.\i{\A nearly five-eighths of an inch in length, moderately 

 slender and nearly cylindrical ; the segments well divided, 

 aud subdivided by a transverse wrinkle on each ; spiracular 

 region much puckered ; prolegs well developed, placed some- 

 what under the body; head light brown; colour of the 

 dorsal region also light brown, marbled with a rather deeper 

 tint of brown ; dorsal line darker ; subdorsal lines blackish- 

 brown, followed by a line of the light brown colour; then by 

 a broad strijie of blackish-brown ; and beneath this by a 

 broad band of cream colour having a brown line running 

 through the middle of it ; undersurface and legs drab, which 

 deepens under the thoracic segments to blackish-brown ; 

 spiracles light brown, indistinct ; raised dots black, each 

 with a fine hair; an ocellated brown spot with a black 

 centre and a long hair on either side of the third and twelfth 

 segments. (W. Buckler — condensed.) 



September, on oak, beech, alder, birch, lime, and probably 



