226 THE ENTOMOLOGIST. 



if that prove the case, then I think we may conchide that the 

 riddle of the presence of achillea in Scothxnd, at all events, may 

 be explained on the rational hypothesis of extension from across 

 what is now the North Sea. 



Harrow Weald ; 



September, 1919. 



NEW VAEIETIES OF BRITISH LEPIDOPTERA FROM 



CHESHIRE. 



By Alfred- Newstead, F.E.S., and S. Gordon Smith. 



(J. Boarmia biundularia, Esp., form venosa, fonn, nov. The 

 i^eneral ground-colour of the fore wings and frmges, respectively, is 

 almost pure white ; the costal margins, hind margins and nervures 

 are sooty-brown, the last-named becoming paler distally and almost 

 disappearing towards the hind margins. 



w 



::S^<* 



Hind wings sooty-brown, faintly speckled with white, bearing two 

 dark, wavy, transverse lines, with a broad white band before the 

 outer margin showing sooty-brown nervures ; the outer margins and 

 fringes are the same as in the fore wings. 



This remarkable and apparently unique aberration was taken 

 at rest on a tree trunk at Belamere, May 6th, 1919 (Fig. 1). 



$ . Biston stmtaria, Huff., form ochrearia, form. nov. This 

 form clearly differs from the type in the ground-colour of both fore 



