LARENTID.^—EUPITHECIA. 59 



hind margin shaijjly edged with Llack descents. Body and 

 legs greyish-white, the tarsi black. 



There is a little variation in the depth of colour of the 

 markings ; those from Herefordshire being decidedly darker 

 than specimens fi'om the South of England. 



On the wing at the end of April and in May. 



Larva long, slender and tapering slightly toward the head ; 

 skin rather rough and wrinkled ; ground colour dull yellowish- 

 green ; dorsal line dull rusty-red, very indistinct except on 

 the capital and caudal segments, enlarged on the middle 

 portion of each segment of the middle of the body into a 

 somewhat conspicuous elliptic blotch ; subdorsal and spira- 

 cular lines yellowish, the latter verj^ faint ; head rusty-red ; 

 undersurface greenish, without markings. (Rev. H. H. 

 Crewe ) 



End of May and June, on oak and occasionally on beech. 



Pl!PA slender, thick-skinned; dark brown, sometimes with 

 the wing-cases olive-green. In a cocoon under bark or moss, 

 (C. Dietze.) 



In this condition through the winter. 



The moth sits during the day on the trunks, or on the 

 underside of the branches, of oaks, or on fences or hedges 

 close to oak woods ; from which hiding places it is easily 

 disturbed, flying to a shoi't distance. Its natural time of 

 flight is at dusk and at night, but it does not seem often to 

 be observed at this period. Usually a very scarce species 

 and extremely local ; more common in the New Forest, 

 Hants, than, probably, anywhere else in the United King- 

 dom, but found occasionally in oak woods in Surrey, Sussex, 

 Dorset, Devon ; in Savernake Forest, Wilts ; in Berks, 

 Gloucestershire, Herefordshire, Suffolk a.nd Norfolk ; doubt- 

 less also in Essex. In Wales Mr. H. W. Vivian reports one 

 or two specimens in Glamorganshire ; but I know of no other 

 localities for it in these Islands. 



