rORrRICID.E—PTYCHOLOMA. ICS3 



Common throughout these Islauds ; also in all parts of 

 Europe, and Siberia ; and found in Oregon, North America. 



Genus 1. PTYCHOLOMA. 



Antennas short and thick ; palpi blunt, very small ; thorax 

 glistening ; fore wings broadly and thickly folded at the 

 base of the costa. 



1. P. lecheana, Linn. — Expanse -| to | inch (18-21 mm.). 

 Fore wings wholly glistening bronzy-brown with a darker 

 central bar ; hind wings black with white cilia. 



Antennae of the male black-brown ; palpi small, yellow- 

 brown ; head black-brown with a yellow-brown collar ; thorax 

 and abdomen bronzy-brown. Fore wings having the costa 

 strongly folded back to the middle, apex bluntly angulated ; 

 bronzy-greenish-brown, more yellow toward the base ; central 

 band ill-deiined, bronzy-black-brown, margined on either side 

 by a silverj^ line ; cilia brouzy-bro\vn. Hind wings brownish- 

 black, cilia tipped with white. Female larger, without the 

 fold but the fore wings broader ; bronzy-orange-brown with 

 faint lustrous lines in the middle. Hind wings black-brown. 



Undersides of all the wings dull smoky brown ; cilia 

 whitish ; in the female the hind wings are tipped with 

 tawny. 



On the wing in June and July, in the north in August. 



Larva yellow-green ; the back from the second segment 

 grey-green with broad dark longitudinal stripes and yellow 

 raised dots; head brown dotted with greenish-black; dorsal 

 plate bordered with black. (Hofmann.) 



August to May, on sallow, willow, poplar, maple, oak, 

 elm, sycamore, ash, and other trees, and on garden shrubs, 

 feeding in spring on the young shoots. 



PurA deep pitchy black ; wing and limb-covers smooth • 

 segments thickened and twice riduid, the front ridge set with 



