PYGAERA] NOTODONTIDAE 303 



darkest towards disc, somewhat reddish beyond second line ; two 

 blackish spots above tornus, lower very small. Hiudwings grey. 



Perhaps introduced, but temporarily naturalised in Kent 

 and Norfolk; C. Europe, WC. and N. Asia; 5, 8. Larva 

 rather hairy, dark fuscous ; dorsal area with four ochreous or 

 whitish lines; 5 and 12 with reddish-brown or black promin- 

 ences, former with a snow-white spot on each side; series of 

 orange spots or markings above and below spiracles ; head 

 black: on poplar; 7, 9, 10. 



3. P. curtula, L. 31-34 mm. Crown and thorax to middle 

 with a dark reddish-brown central blotch. Forewings brown, 

 partially suffused with grey-whitish ; lines fine, whitish, first 

 straight, oblique, median somewhat curved inwards, second 

 slightly sinuate above, stronger on costa, limiting a large 

 trapezoidal reddish-brown apical blotch, deeper red anteriorly ; 

 postsubterminal interrupted, dark fuscous. Hind wings grey. 



England, Fife, N. Ireland, local; N. and C. Europe, Asia 

 Minor ; 4, 5, 7. Larva hairy, pinkish-grey, black-speckled ; 5 

 and 12 with black prominences; series of orange spots; head 

 black, with two reddish-ochreous stripes : on aspen and poplar : 

 5, 6, 8, 9. 



2. NOTODONTA, 0. 



Eyes hairy, at least in part. Antennae in $ bipectinated 

 to near apex. Palpi rather short, 

 rough-haired. Thorax with slight 

 anterior crest. Anterior tarsi 

 rough - scaled. Forewings with 

 dorsal scale -tooth ; 10 out of 9 

 above 7. Hindwings : 8 approxi- 

 mated to beyond middle of 

 cell. 



Also of no great extent; it 

 ranges throughout the Northern 

 hemisphere, but principally in 

 temperate regions. Larva with 

 two or more median prominences, 

 and one on 12 ; anal prolegs small, 

 held aloft in repose. Neuratlon of * to ^- 



1. Discal mark of fore wings strongly curved 1. ziczac. 



not or hardly curved . 2. 



2. Hindwings whitish . . .3. tritophus. 



grey . . . . .3. 



