264 NOTODONTINA [SELIDOSEMA 



ground as in forewings ; a blackish-grey 'discal dot and curved 

 second line. 



Surrey to Wilts and Devon, Leicester, Lake District, local ; 

 C. Europe ; 7, 8. Larva pale blue-green, back more whitish ; 

 a dorsal series of black spots ; a subdorsal series of black 

 dashes ; some small lateral black marks : on lichens ; 5, 6. 



4. S. angularia, Thnb. (viduaria, Bkh.) 31-32 mm. Head 

 whitish, mixed with black. Forewings ochreous-white strigu- 

 lated with black, base mixed with light brownish; lines 

 blackish, first curved, median thick, second subserrate, sinuate, 

 followed by a light brownish shade, praesubterminal waved ; a 

 black discal mark beyond median. Hindwings brown-whitish, 

 strigulated with grey ; three dorsal marks and a discal dot 

 blackish. 



Sussex, Hants, scarce ; C. Europe ; 6. Larva on oak ; 

 8(?). 



5. S. gemmaria, Brh. (rhomboidaria, Hb. ; perfumaria, 

 Newm.) 34-40 mm. Head fuscous, face with darker pale-edged 

 bar. Forewings brownish, veins light ochreous, strigulated 

 with dark fuscous; first, median, and second lines fuscous or 

 dark fuscous, curved above, second black-dotted, stronger on 

 dorsum ; subterminal obscurely whitish, waved ; a blackish 

 discal mark before median. Hindwings as forewings, but first 

 line absent, median straight, discal dot beyond it. 



Britain to Caledonian Canal, very common (unfrequent in 

 Scotland) ; C. and S. Europe, WC. and N. Asia ; 7. Larva 

 from reddish-brown to dark slaty-grey, dusted with darker and 

 lighter, sometimes forming irregular lines, an interrupted dorsal 

 line, or indistinct diamonds : on oak, blackthorn, birch, etc. ; 

 9-5. 



6. S. cinctaria, Schiff. 30-35 mm. Head fuscous mixed with 

 whitish, face with black bar. Forewings brownish, variably 

 mixed with whitish and sprinkled with black ; first line curved, 

 black, preceded by a dark brown shade ; median ochreous, 

 sinuate ; second black, serrate, sinuate, followed by an ochreous- 

 brown shade ; subterminal whitish, waved ; a whitish dark- 

 margined discal mark on median. Hindwings as forewings, but 

 first line and shade absent, median straight, discal mark 

 beyond it. 



Sussex to Oxford and Dorset, Argyll, S. Ireland, local ; N. 

 and C. Europe, WC. and N. Asia ; 5, 6. Larva light green, 

 with several fine paler lines; dorsal and lateral lines bluish - 

 green ; subdorsal whitish : on Erica and birch ; 6-8. 



