72 PLUTELIJD.E. 



solete) towards the costa extending from the hase to the middle of the 

 toing ; there is frequently a conspicuous dark fuscous spot above the 

 fokl beyond the middle, and the costal half of the wing is frequently 

 spotted with fuscous ; at the apex of the hinder margin are some fus- 

 cous spots ; cilia paler than the wing, with a fuscous streak in the 

 apex. Posterior wings grey, with paler cilia. 



The perfect insect occurs from the end of July to September, 

 among oaks, less commonly than the preceding, 



5. sylvella, Linn. S. N. (12) 893. 413 (1767); Fab.; liiib. ; 

 Treit. ; Step. ; Dup. — bifasciatus, Haw. Alis anticis dilute ochreis, 

 vix fusco reticulatis, fasciis duabus obliquis, cosiam versus ijiterniptis, 

 saturate fuscis. Ex]). al. 9 lin. 



Head, face, and palpi pale ochreous. Antenna; whitish-ochreous, 

 annulated with fuscous. Anterior wings pale ochreous, slightly reticu- 

 lated with fuscous, with two oblique dark fuscous fasci(B (one before, 

 the other beyond the middle), somewhat interrupted towards the costa ; 

 cilia pale ochreous. Posterior wings grey, with paler cilia. 



Not uncommon among oaks in August and September. The 

 larva feeds (according to Madame Lienig) on the oak in June. 



6. alpella, W. V. 135. 30 (1776); Fab.; Tlxdi.—persicellus, 

 Step. ? Alis anticis dilute ochreis, obsolete fuscescente-reticulatis, 

 striis duabus dorsi obliquis, plicam vix snperautibus, fuscis. Exp. al. S 

 lin. 



Head, face, and palpi pale ochreous. Autcnnrc whitish-ochreous, 

 annulated with fuscous. Anterior wings pale ochreous, indistinctly 

 reticulated with pale fuscous, with two oblique /«sco«.s streaks from the 

 if/ner v/arffi)/. (one before, and one beyond the middle), neither reaching 

 more than half across the wing ; cilia pale ochreous. Posterior wings 

 grey, paler towards the base, with pale greyish-ochreous cilia. 



Not scarce among oaks in August. 



'c 7. lucella. Fab. S. E. 667. 4 (1775) ; ^dw.—antennetla, W. V.; 

 Treit.; Step.; Diqi. — retusana, Borgst. — mucronelta, Hiib. ; Haw. 

 Alis anticis ochreis fuscescente-reticulatis, dorso obsolete albo usque 

 pone medium ; capite albo. Exp. al. 8 lin. 



Head and face icliite. Palpi white ; second joint beneath ochreous. 

 Autennrc white, annulated with black. Anterior wings ochreous, reticu- 

 lated with pale fuscous, with the inner margin indistinctly white to be- 

 yond the middle ; near the inner margin are two liark ochreous blotches, 

 one towards the base, the other beyond the middle ; cilia pale retldish- 

 ochreous. Posterior wings grey, with paler cilia. 

 Not uncommon in many localities in July. 



8. horridella, Treit. E. S. x. iii. 191 (1835); Dup. ; Guenee?— 

 falcella, Ste|i. — snlij'alcatella. Curt. Alis anticis saturate fuscis violaceo 

 tiuctis, maculis tribus scabris sub plicam nigris, macula sinuata obsoleta 

 dorsali saturate fusca. Exp. al. 9 lin. 



