ENARMONIA] EPIBLKMIDAE 475 



slightly arched, whitish-fuscous, darker-sprinkled, costa strigu- 

 lated with dark fuscous and posteriorly with whitish ; basal 

 patch partially dark fuscous, edge obtusely angulated above 

 middle ; obtusely angulated central fascia, and irregular trans- 

 verse streak before apex dark fuscous. Hindwings dark 

 fuscous. 



England, Aberdeen, E. Ireland, local ; N. and C. Europe ; 5, 6. 

 Larva reddish-grey ; head brown : on Vaccinium myrtillus ; 7, 8. 



9. E. ratzeburgiana, Rtz. (tenerana, Dup.) 12-15 mm. 

 Forewings with costa moderately arched, ferruginous-ochreous, 

 more or less sprinkled with grey and whitish, costa spotted 

 with blackish; edge of basal patch blackish -mixed, sharply 

 angulated in middle, almost touching central fascia to enclose 

 a somewhat paler triangular dorsal spot ; central fascia black- 

 marked on upper half. Hindwings grey. 



Britain to Caledonian Canal, local ; C. Europe, N. America : 

 7. Larva light yellowish -green ; head yellowish -brown : on 

 Pinus abies ; 5. 



10. E. corticana, Hb. 13-17 mm. Forewings with costa 

 moderately arched, whitish, ochreous, or fuscous, sprinkled 

 and strigulated with dark fuscous or blackish, sometimes 

 wholly suffused with dark fuscous; basal patch darker, 

 black - marked, often abruptly whitish on dorsum, edge 

 sharply angulated, touching central fascia to include a trape- 

 zoidal usually paler or white dorsal spot; central fascia and 

 a subapical suffusion fuscous or dark fuscous, black -marked. 

 Hindwings grey. 



Britain to the Hebrides, N. and E. Ireland, very common, 

 often excessively abundant ; Europe ; 7, 8. Larva pale 

 brownish-ochreous ; head light brown ; tubercular spots small, 

 black : on oak ; 5, 6. The imago sits on the trunks, to which 

 its colouring is adapted. 



11. E. oppressana, Tr. 13-15 mm. Forewings with costa 

 moderately arched, white, more or less densely irrorated with 

 dark grey, and strigulated on margins with blackish; basal 

 patch with edge obtusely angulated below middle, central 

 fascia interrupted near dorsum, a subterminal spot in middle, 

 and small apical spot darker, partly suffused with brown, and 

 marked with black. Hindwings grey. 



Kent to Hereford and Norfolk, Westmoreland, local ; C. 

 Europe ; 6, 7. Larva pale brown ; head and plate of 2 black : 

 in buds of black poplar (Populus nigra) ; 3-5. The imago sits 

 on the trunks. 



