184 



NOTODONTINA 



[TEPHROCLYSTIS 



dark grey ; spiracular yellow : on flowers of Ulex, Cytisus, 

 Erica, etc. ; 6, 9. 



6. TEPHROCLYSTIS, Hb. 



Face with short cone of scales. Antennae in $ ciliated. 

 Palpi rough - scaled. Abdomen 

 crested throughout, sometimes 

 slightly. Forewings : areole 

 simple. Hindwings : 8 anastomos- 

 ing with cell to beyond middle. 



A large genus, principally char- 

 acteristic of the European region, 



Forewing of Tephrodystis oUongata. i mimprous in S Asia and North 



-Lvoo 11 UllltJX ULlo 111 to. ZjLolct cillLl _L_i OiCl! 



America. The large number and great similarity of the species 

 renders their determination difficult without considerable 

 experience. 



1. Posterior half of thorax white . . .2. 



not white . . 3. 



2. Thorax anteriorly fuscous . 16. succenturiata. 



wholly white . . .11. oblongata. 



3. Thorax with white central stripe . . 34. insigniata. 



without white central stripe . . 4. 



4. Abdomen with entire black subbasal ring . 5. 



without entire black ring . .7. 



5. Forewings in disc white . . . 33. irriguata. 



not white . . .6. 



6. Median line black throughout . .1. venosata. 



not black throughout . 2. expallidata. 



7. Forewings with dark grey band and two reddish- 



ochreous fasciae . . .8. 



not so marked . . . .9. 



8. Median band interrupted with ochreous 14. pulchellata. 



,, not interrupted with ochreous 15. linariata. 



9. Forewings without discal dot . . .10. 



with dark discal dot . . .11. 



10. Abdomen towards base suffused with pale reddish 



22. isogrammaria. 

 not reddish towards base 23. pygmaeata. 



11. Forewings more or less distinctly elongate . 12. 



not elongate . . . .27. 



12. Cilia of hind wings conspicuously barred . .13. 



,, ,, not conspicuously barred . 15. 



