806 MICROPTERYGINA [ERIOCEPHALA 



3. Markings of forewings white . 4. aruncella o . 



,, ,, not white . . .4. 



4. Forewings with termen bronzy-purple . 2. aureatella. 



,, pale golden . 1. thunbergella. 



5. Forewings with base purple . . 5. calthella. 



,, base of costa only purple 4. aruncella $ . 



1. E. thunbergella, F. 8-9 mm. Head light ferruginous. 

 Forewings pale shining bronzy-golden ; a spot on costa near 

 base, a fascia before middle not reaching dorsum, another 

 beyond middle furcate towards costa, and a costal spot before 

 apex sometimes connected with this beneath purplish-coppery. 

 Hindwings rather dark bronzy-grey, posteriorly purplish-tinged. 



England, in woods, common ; C. Europe \ 5. 



2. E. aureatella, Sc. (allionella, F.) 8-9 mm. Head light 

 ferruginous. Forewings shining bronzy-purple ; a straight 

 fascia towards base, a rather oblique somewhat bent median 

 fascia, and a spot towards costa posteriorly pale shining golden. 

 Hindwings bronzy-grey, posteriorly purplish-tinged. 



Britain to Sutherland, Ireland, in woods, local ; N. and C. 

 Europe ; 5, 6. 



3. E. mansuetella, Z. 8-9 mm. Head black. Forewings 

 pale shining bronzy- golden ; a costal spot near base, a fascia 

 before middle not reaching dorsum, and posterior half of wing 

 deeper golden, often more or less purple-tinged. Hindwings 

 rather dark bronzy-grey, posteriorly purplish-tinged. 



England, local ; Germany ; 5, 6. 



4. E. aruncella, Sc. (seppella, F.) 7-8 mm. Head ferruginous. 

 Forewings shining bronzy-golden ; base of costa purple ; in <$ a 

 transverse mark at J sometimes reaching costa, a straight slender 

 median fascia, and sometimes a costal mark at f shining white. 

 Hindwings dark grey, posteriorly purplish-tinged. 



Britain to Perth, Ireland, common ; C. Europe ; 6. Larva 

 on wet moss (Hypnum) ; 7-10. The variety of the with a 

 posterior costal mark has long been regarded as a distinct 

 species, under the name of seppella; but the two forms are 

 connected by gradual transitions. 



5. E. calthella, L. 7-9 mm. Head deep ferruginous-yellow. 

 Forewings pale shining bronzy-golden ; base purple. Hind- 

 wings rather dark bronzy-grey. 



Britain to Sutherland, N. and E. Ireland, very common ; 

 Kurope (except SW.) ; 5, 6. Larva on wet moss (llypnwni) ; 

 7-10. 



