642 TINEINA [COLEOPHORA 



repose the antennae are porrected straight forward, instead of 

 being thrown back as usual. The genus is closely allied to 

 Batrachedra, and probably a development of it. The internal 

 evolution of the genus is obscure, but probably the Juncus- 

 feeding species are the most ancestral (several exotic species of 

 Batrachedra also feed on seeds of Juncus), giving rise to two 

 main lines of development, represented by the unicolorous and 

 vein-marked groups respectively. 



1. Second discal stigma distinct . . .2. 

 All stigmata absent . . . .3. 



2. Antennae thickened with scales towards base 



28. salicorniae. 

 ,, not thickened . . 25. hemerobiella. 



3. Forewings wholly unicolorous, not white . . 4. 



,, white or with one or more pale streaks 25. 



4. Forewings shining brassy-bronze . . .5. 



,, greyish-bronze, or not bronzy . . 7. 



5. Antennae dark grey, apex white . . .6. 



white ringed with dark fuscous 1. fabricidla. 



6. Expanse 12-13 mm. . . .2. deauratella. 



17-18 mm. '. . .3. frischella. 



7. Forewings violet-blackish . . 4. albitarsella. 



not violet-blackish . . .8. 



8. Basal half of antennae wholly dark fuscous . 9. 



,, not wholly dark fuscous . 11. 



9. Apical half of antennae white with dark rings 



9. fuscocuprella. 

 not ringed . 10. 



10. Forewings greyish-bronze . 5. alcyonipennella. 



dark fuscous, sometimes bronzy-tinged 



8. paripennella. 



11. Head yellowish . . . . .12. 



,, pale greyish-ochreous to fuscous . .14. 



12. Forewings fuscous-ochreous . . 22. olivacella. 



ochreous-yelloAvish . . .13. 



13. Cilia towards torn us dark grey . .21. solitariella. 



}) ,, not dark grey 18. lutipennella. 



14. Forewings greyish-ochreous to deep ochreous . 15. 



fuscous, bronzy, or grey . .18. 



15. Forewings deep ochreous, coppery-tinged 15. bicolorella. 



lighter, not coppery-tinged . .16. 



16. Antennae indistinctly ringed with fuscous 16. viminetella. 



sharply ringed with dark fuscous . 17. 



