swa.mmi-.kua.mia] TINKIDAE 769 



3. Cilia of fore wings distinctly coppery-tinged 5. pyre/la. 



„ „ not coppery . . . I. 



4. Fascia reaching costa ; thorax fuscous . 3. lutarea. 



,, not reaching costa ; thorax whitish 2. heroldella. 



1. S. combinella, lib. (comptella, Hb. ; apicel/a, Don.) 15-16 

 mm. Head white, sometimes fuscous-mixed. Forewings light 

 greyish -ochreous more or less irrorated with white; base of 

 dorsum fuscous ; several longitudinal series of dark fuscous 

 marks ; a roundish golden -ochreous apical spot, partly edged 

 anteriorly with dark fuscous; apical cilia fuscous, with two 

 black lines. 



Britain to Roxburgh, Ireland (except N.), common ; C. 

 Europe, Asia Minor; 5, 6. Larva dull green; dorsal line 

 darker; subdorsal series of dull red dots; head yellowish-brown: 

 several together in a common web on blackthorn ; 7-9. 



2. S. heroldella, lib. (yriseocapitella, Stt. ; nanivora, Stt.) 

 11-12 mm. Head white, sometimes suffused with fuscous. 

 Thorax white, usually sprinkled or suffused with fuscous. 

 Forewings white, closely irrorated with fuscous, dorsum usually 

 paler ; some longitudinal series of indistinct dark fuscous dots ; 

 a dark fuscous fascia before middle, not reaching costa ; a white 

 costal spot towards apex ; cilia darker, with two dark fuscous 

 lines. Iliiidwings grey. 



Britain to the Orkneys, N. Ireland, local; N. and 0. Europe; 

 5, G, 8. Larva pale green ; dorsal and subdorsal darker ; head 

 yellow-brown; 2 grey - speckled : on birch; 7,9. The larva 

 appears to have also a brown form, and sometimes a black 

 head. 



.'!. S. lutarea, lfn\ {oxyacantheila, Dup.) 11-13 mm. Head 

 white, sometimes ochroous-tinged. Thorax fuscous, sometimes 

 whitish-sprinkled. Forewings fuscous-whitish, closely irrorated 

 with dark fuscous ; some longitudinal series of indistinct dark 

 fuscous dots ; a dark fuscous entire fascia before middle ; a 

 white costal spot before apex ; cilia fuscous, with two darker 

 lines. Iliiidwings fuscous. 



England, common ; (J. Europe ; 7. Larva deep brown ; 

 subdorsal line while, orange-spotted; spiracular white, on 5-12 

 orange-spotted above; head ochreouN-brown, blackish-marked ; 

 when young several together in a common web, afterwards 

 singly on hawthorn and Pyras auciiparia; 9-5. The larva 

 hibernates in a cocoon when half-grown ; it is sometimes partly 

 greenish, or is without the subdorsal lines. 



4. S. caesiella, ///>. (spiniella, lib.) 10-12 mm. Head white. 

 3 D 



