666 TINEINA [ELACHISTA 



23. Anterior fascia twice shortly angulated . 12. poae. 



not so formed . . . . 4. 



24. Costal spot larger than tornal . .13. perplexella. 



not larger than tornal . 16. nigrella. 



25. Costal spot rounded or truncate beneath . 7. holdenella. 



triangular .... 26. 



26. Costal spot markedly larger than tornal . .27. 



,, not markedly larger than tornal . 28. 



27. Anterior fascia almost obsolete . .18. humilis. 



,, ,, distinct . . .9. atricomella. 



28. Fascia somewhat curved, in costally obsolete 



10. alpinella. 

 straight, in $ not more obsolete costally 29. 



29. Head dark grey, face lighter . .14 subnigrdla. 



,, grey on crown, face whitish . 19. obscurella. 



30. Forewings with two or three pale ochreous fasciae 31. 



without pale ochreous fasciae . . 33. 



31. Costa fuscous towards base . . . 32. 



not fuscous towards base . . 35. subocellea. 



32. Dark line of cilia truncate at apex . 34. collitella. 



,, ,, ,, rounded . .33. disertella. 



33. Plical stigma absent .... 34. 



,, black, distinct . . . 35. 



34. Forewings irrorated with brown or ochreous 



38. rufocinerea. 

 wholly white . . 39. cygnipennella. 



35. Forewings with two dai'k fuscous fasciae . 32. cerusella. 



without dark fuscous fasciae . . 36. 



36. Forewings with grey or fuscous markings . 37. 



without such markings . . 39. 



37. Forewings with angulated fuscous fascia . .38. 



,, without such fascia . . 28. biatomdla. 



38. Forewings with apical black dot . . 31. scirpi. 



,, without apical black dot 30. rhynchosporella. 



39. Stigmata dark fuscous, hind wings grey-whitish 



36. dispunctella. 



black, hindwings in $ grey . 37. triatomea. 

 1. E. trapeziella, Stt. 8-10 mm. Head grey, face white. 

 Forewings blackish ; a spot on fold towards base, one on middle 

 of costa and another beneath it on fold, in $ larger and some- 

 times confluent, a fourth on tornus, and a fifth at apex shining 

 white. Hindwings dark fuscous. 



Kent, Gloucester, York, Lancashire, Durham, local ; 



