SCO PA RIILh-E—SCOPA RIA . 3 " 



the second line, the outer area being strikingly greyish- 

 white. 



This species is always recognisable by its broad fore wings, 

 mach arched costa, and the extension of the black first line 

 upoa the costa toward the base. 



On the wing from the middle of June till the beginning of 

 August. 



Larva and Pupa unknown. Food-plant also unknown ; 

 Mr. B. A. Bower records his endeavour to obtain eggs, by 

 placing females in pots of growing moss, but entirely with- 

 out success. 



The moth frequents woods, sitting during the day upon 

 the trunks of trees, more especially oak trees, with its head 

 raised and in a perpendicular position ; here the breadth 

 of the bell-shaped closed wings and its robust build is 

 very noticeable, and serves to separate it obviously from 

 the next species. Not very restless, and if disturbed 

 flying generally to a neighbouring tree, or where possible 

 sometimes to a rock face. Uncertain in its appearance, 

 in some seasons plentiful, in others very scarce. Its natural 

 flight is at dusk, and occasionally it will come to light at 

 night. 



Recognised as a distinct species and described by Dr. H. 

 Guard Knaggs in the year 186G, having previously been 

 regarded as a variety of S. amhigualis. Very local but found 

 in woods, as already stated, in Kent, Surrey, Sussex, Hants, 

 Devon ; rarely in Cornwall, Somerset, and Gloucestershire ; 

 more frequently in Berks, Suffolk, Norfolk, Cambridgeshire, 

 Herefordshire, and Worcestershire ; in Edlington Wood, 

 Yorkshire, where it abounds in certain years ; around Mor- 

 peth, Northumberland, and also in Cumberland. I have no 

 record for Wales or Scotland ; and in Ireland the only one 

 is in the County Cork. Abroad it seems to be little known , 

 but has been recognised in Germany. 



