EUSTROTTA; PLUSIADAE 167 



the fasciae a pale line. Hindwings dark fuscous mixed with 

 ochreous-grey; median and terminal fasciae sometimes crimson- 

 tinged. 



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

 Asia ; 5-7. Larva with prolegs on 7 absent, on 8 rudimentary ; 

 green ; dorsal line darker, pale-edged ; subdorsal, lateral, supra- 

 spiracular, and subspiracular lines pale, last whitish on 10-13; 

 head green, faintly brown-freckled : on Poly gala; 7-9. 



19. PANEMERIA, Hb. 



Head rough-haired. Antennae in $ filiform, simple. Palpi 

 short, porrected, rough-scaled. Thorax rough-haired. Abdomen 

 not crested. Tibiae rough-scaled. Hindwings : 5 approximated 

 to 4. 



It is doubtful whether any other species can be correctly 

 referred to this genus, which is correlated with the preceding. 

 Imago flies freely in sunshine. Larva with all prolegs developed. 

 Pupa subterranean. 



1. P. tenebrata, Sc. (arbuti, F.) 18-19 mm. Fore wings 

 brown, more or less mixed with dark fuscous and sprinkled with 

 grey-whitish ; first and second lines indistinctly darker ; median 

 shade dentate, cloudy, dark fuscous ; a dark brown shade in- 

 dicating subterminal line. Hindwings blackish ; an irregular 

 deep yellow postmedian fascia, becoming obsolete dorsally. 



England to Cumberland, S. Ireland, common ; N., C., and SE. 

 Europe ; 5, 6. Larva light green ; dorsal line dark green ; sub- 

 dorsal whitish, dark-edged; spiracular yellow -whitish, edged 

 above with dark green ; head light green : on seed-capsules and 

 flowers of Cerastium ; 6, 7. 



20. EMMELIA, Hb. 



Head with appressed scales, face forming large rounded 

 prominence, lower edge truncate beneath. Antennae in $ 

 ciliated. Palpi moderate, subascending, with appressed scales, 

 terminal joint short, rather pointed. Thorax with slight pos- 

 terior crest. Abdomen not crested. Tibiae smooth -scaled. 

 Hindwings : 5 approximated to 4. 



Includes a single species only, probably correlated with 

 Eustrotia. Larva without prolegs on 7 and 8. 



1 . E. trabealis, Sc. (sulphuralis, L.) 1 9-23 mm. Forewings pale 

 ochreous-yellow ; a longitudinal streak from base of costa beneath 

 middle and another along dorsum, terminating in an irregular 

 partly double transverse streak representing second line, about 



