770 TINE1NA [SWAMMERDAMIA 



Thorax white, sometimes anteriorly fuscous -sprinkled. Fore- 

 wings white, irregularly irrorated with fuscous; some longitudinal 

 series of blackish dots ; antemedian dark fuscous fascia reduced 

 to two spots, discal and dorsal ; two white spots on costa pos- 

 teriorly, separated by a dark fuscous spot ; cilia coppery-tinged, 

 with two dark purplish-fuscous lines. Hindwings pale fuscous. 



Britain to Sutherland, Ireland, very common ; C. Europe ; 

 7, 8. Larva reddish-brown ; dorsal line broad, paler, becoming 

 indistinct posteriorly ; spiracular broad, yellowish-white ; head 

 pale yellow-ochreous : often two or three together in a common 

 web, on blackthorn ; 6. 



5. S. pyrella, Vill. 10-11 mm. Head white or whitish- 

 ochreous. Thorax dark fuscous, whitish-sprinkled. Forewings 

 fuscous, faintly purplish -tinged, closely irrorated with dark 

 fuscous, and irregularly sprinkled with whitish ; a dark purplish- 

 fuscous entire fascia before middle ; a whitish anteapical costal 

 spot ; cilia dark coppery - fuscous. Hindwings grey ; in $ 

 anterior half, in $ base whitish. 



Britain to the Clyde, E. Ireland, common ; C. Europe ; 5, 8. 

 Larva pale yellow ; subdorsal line dark red -brown; 4-12 with 

 pale brown anterior bands ; head brown, sides blackish : on 

 hawthorn, apple, and cherry ; 7, 9. 



21. ROESLERSTAMMIA, Z. 



Head rough above, face smooth. Tongue developed. 

 Antennae -f-1, in & ciliated, basal joint moderate, without 

 pecten. Labial palpi moderate, curved, porrected, second joint 

 somewhat rough beneath, terminal joint longer than second, 

 pointed. Maxillary palpi obsolete. Posterior tibiae hairy. 

 Forewings : Ib furcate, 7 and 8 stalked, 7 to costa. Hindwings 

 1, elongate-ovate, cilia \ ; 3 and 4 connate or short-stalked, 5-7 

 parallel. 



Only the two following species are known. Imago with 

 forewings elongate, moderate. Larva when young mining in 

 leaves, afterwards feeding externally. 



Hindwings partly yellow . .1. pronubella. 



wholly dark fuscous . . 2. erxlebella. 



1. R. pronubella, Schiff. 11-13 mm. Head ochreous-yellow, 

 centre of crown brownish. Antennae 1, with whitish subapical 

 band. Forewings shining light golden -bronze. Hindwings 

 light ochreous-yellow; dorsum and termen usually very narrowly, 

 apex more broadly suffused with dark fuscous. 



Devonshire, Sutherland, local and very rare ; C. Europe ; 5, 6. 



