N0T0D0NT1NA Lstaubopvs 



deep; 5-10 with pairs of prominences, posteriorly smaller; 12 

 and 13 much swollen : on beech, oak, etc. ; 8, 9. It has been 

 suggested that this curious larva resembles a dead and crumpled 

 beech-leaf. 



6. Ptilophora, Stph. 



Eyes glabrous. Antennae in $ very strongly bipectinated to 

 apex. Palpi rather short, rough-haired. Thorax with slight 

 anterior crest. Anterior tarsi rough-scaled ; posterior tibiae 

 without middle-spurs. Forewings : 5 weak, 10 out of 9 near 

 base. Hindwings : 8 approximated to end of cell. 



Only one species is satisfactorily established. Larva with- 

 out prominences, beneath neck with a protrusible furcate 

 appendage. 



1. P. plumigera, Esp. 32-40 mm. Forewings thinly scaled, 

 reddish-ochreous-brown, veins fuscous ; a longitudinal greyish 

 posterior suffusion above and below middle ; first line some- 

 times faintly yellowish ; second obscurely yellowish, waved, 

 distinct on costa ; sometimes an obscure yellowish terminal 

 band, interrupted by the grey suffusions ; cilia dark-spotted. 

 Hindwings thinly scaled, pale reddish-grey; a faint pale post- 

 incdian fascia. 



Hants to Bucks, Gloucester, Devon, local ; C. Europe ; 10, 

 11. Larva wh itish- green ; dorsal stripe broad, light blue- 

 green; subdorsal line white; spiracular double, whitish: on 

 maple and sycamore ; 5, 6. 



7. Pterostoma, Germ. 



Eyes glabrous. Antennae in (J bipectinated to apex. Palpi 

 very long, erect, clothed with long dense rough scales. Thorax 

 with strong triangular central crest. Abdomen with small 

 dorsal crest. Forewings with dorsal scale-tooth ; 10 rising 

 separate, connected or anastomosing with 9. Hindwings : 8 

 approximated to beyond middle. 



Besides the one European, there are two or three Central 

 Asiatic species. Larva without prominences. 



1. P. palpina, L. 38-46 mm. Forewings light brown, 

 partially mixed with whitish-ochreous, veins finely blackish ; an 

 oblique blackish mark from base of costa ; first and second 

 lines obscurely darker, double, dentate, forming blackish dots 

 on veins ; median line suffusedly darker, very obscure ; termen 

 waved. Hindwings dark grey, towards base pale fuscous. 



Britain to Ross, E. Ireland, common ; Europe, Asia Minor ; 



