72 OARADRININA [leucania 



with grey, Ijcneath with brown ; lateral and subspiraciilar pale 

 ochreous ; spiracular grey ; head brown-marked : on grasses ; 

 9-5. 



14. MONIMA, Hb. 



Head rough -haired ; eyes hairy. Antennae in ^ bipecti- 

 nated or acutely bidentate, towards apex simple, basal joint 

 with hairtuft. Thorax without distinct crest. Abdomen not 

 crested. 



A genus of rather few species, occurring throughout the 

 temperate regions of the northern hemisphere, more commonly 

 in America. The imagos all appear in early spring. 



1. Antennae in S bidentate . . . .2. 



,, bipectinated . . .4. 



2. Hindwings with postmedian series of elongate dots 



3. gracilis. 

 ,, without series of dots . . .3. 



3. Lower half of I'eniform blackish . . 1. incerta. 



,, ,, not blackish . 2. opima. 



4. Discal cell black round orbicular . . 9. gothica. 



,, not black . . . .5. 



5. Hindwings white . . . .6. miniosa. 



,, not white . . . .6. 



6. Subterminal line conspicuously pale . . 7. 



,, ,, hardly paler . . .8. 



7. Subterminal line preceded by two small dark marks 



5. populeti. 

 „ ,, not preceded by two dark marks 



4. stabilis. 



8. Subterminal line preceded by two l)lack spots 8. munda. 



„ ,, not preceded by two black spots 



7. pulverulenta. 



1. M. incerta, Hufn. (instabilis, Esp.) 34-37 mm. Antennae 

 in S bidentate. Forewings dark purplish-grey, sometimes 

 much mixed with light grey or suffused with ferruginous- 

 brown ; first and second lines usually indistinct, median shade 

 darker ; orbicular and reniform finely outlined with pale, reni- 

 form with lower half blackish ; subterminal line grey-whitish, 

 slightly irregular. Hindwings whitish-grey or grey, darker 

 l)Osteriorly ; a darker discal crescent. 



Britain to Ross, Ireland, very common ; N. and (J. l<'.ui-()pe, 

 N. Asia ; 4. Larva green, with numerous yellowish or whitish 

 dots ; dorsal and spiracular lines pale yellow or w hitish ; sub- 



