3i6 LEPIDOPTERA. 



creamy-yellow. Hiud wings and their cilia smoky white. 

 Female similar ; hind wings rather darker. 



Underside of the fore wings smoky black, with yellow 

 cilia and costal dots. Hind wings smoky white- 



On the wing in May and June, in a single generation. 



Larva unknown, but suspected to feed in the catkins of 

 birch. Mr. A. Thuruall has reared the moth from dead 

 stems of marsh-thistle lying under a birch tree. 



It is strange that the larva of this species should be still 

 unknown. It is not improbable that it feeds out of reach, 

 since the moth is constantly found about l(ii-(je birch trees, 

 and by no means so often in birch-bushes. It flies freely by 

 day when disturbed, but often settles in the branches ; at 

 dusk it buzzes commonly round them. In the case of very 

 old birches where trunks are deeply fissured and extremely 

 rugged, this little moth will often rest on one of the most 

 rough jDrojecting portions and there simulate with extra- 

 ordinary accuracy the excrement of some small bird which 

 might have dropped there. Very common, yet local, found 

 in Kent, Sussex, Surrey, Dorset, Somerset, Wilts, Glouces- 

 tershire, Herefordshire, Herts, Essex, Suffolk, Norfolk, and 

 abundantly in Staffordshire ; also in Leicestershire, 

 Cheshire, Lancashire, Yorks, Durham, Northumberland and 

 Cumberland ; but I find no record in Wales. In Scotland 

 it occurs in Perthshire, and in the Edinburgh and Clyde 

 districts ; and in Ireland in Wicklow. Abroad its range 

 extends through Central and Northern Europe, the north of 

 Italy and of Spain, Dalmatia and the western part of Asia 

 Minor ; and its existence in Nova Scotia, in North America, 

 is reported. 



Genus 3. LOZOPERA. 



AutennEe slender, finely serrated ; palpi thick, rather 

 elongated, pointed, and divergently porrected ; face sloping ; 

 fore wings narrowly trigonate ; without the costal fold ; 



