290 NOTODONTINA [palimpsestib 



3. Palimpsestis, Hb. 



Eyes glabrous. Antennae in $ very shortly ciliated. Ter- 

 minal joint of palpi short. Abdomen not crested. Forewings : 

 6 out of 9. Hindwings : 5 neai'ly parallel to 4. 



A small European and Asiatic genus. Larva living concealed 

 amongst spun leaves of trees. 



1. Forewings with pale orbicular and discal spots . 2. 



,, without pale orbicular and discal spots 3. 



2. First and second lines diverging towards costa . 3. or. 



,, „ ,, parallel towards costa 



4. octogesima. 



3. Forewings with two black discal dots . 2. duplaris. 



,, without discal dots . .1. Jluctuosa. 



1. P. fluctuosa, Hb. 33-36 mm. Forewings light fuscous, 

 white- sprinkled ; first line whitish, limiting a broad darker 

 central band including dark fuscous median and second lines, 

 followed by a whitish dark-edged waved line ; subterminal 

 whitish, waved, preceded on costa by an oblique dark fuscous 

 dash. Hindwings grey, with a pale postmedian line. 



England, S. Ireland, local ; C. Europe ; 6, 7. Larva yellow- 

 whitish ; dorsal, fine subdorsal, and lateral lines fuscous ; head 

 reddish-ochreous, brown-marked : amongst spun leaves of bii"ch 

 and oak ; 9, 10. 



2. P. duplaris, L. 27-32 mm. Differs from P. fluctuosa as 

 follows : forewings with whitish lines usually less distinct, 

 central band usually dark-striated towards edges, two black 

 discal dots transversely placed, no praesubterminal dash, a dark 

 fuscous oblique apical dash. 



Britain to Sutherland, Ireland, common ; N. and C. Europe, 

 NW. Asia ; 6, 7. Larva pale dull greenish, deeper dorsally ; 

 dorsal line darker ; subdorsal broad, dull olive-green ; lateral 

 fine, yellowish ; dots black ; head reddish : amongst joined 

 leaves of birch, alder, and oak ; 8, 9. 



3. P. or, F. 35-38 mm. Forewings brownish -grey ; sub- 

 basal line double, dark fuscous ; first and second lines quad- 

 ruple, dark fuscous, sometimes suffused, markedly diverging 

 towards costa ; small orbicular and 8-shaped discal spots pale 

 or wliitish ; subterminal formed of short whitish marks followed 

 by black marks ; an oblique black apical dash. Hindwings 

 rather dark grey. 



Britain to the Hebrides, local ; N. and C. Europe, N. Asia ; 

 6, 7. Larva pale greenish ; dorsal line darker ; spiracular 



