XEPHOPTERYX] PHYCITIDAE 371 



nearly reaching |, 3 sometimes out of 5, 4 and 5 stalked, 7 

 closely approximated to 8 to middle. 



A considerable genus, of nearly cosmopolitan distribution, 

 but absent from New Zealand ; it appears to originate from a 

 form allied to Acrobasis. Imago with forewings elongate, more 

 or less dilated, costa gently arched. 



Discal dot of forewings double . . 2. hostilis. 



„ ,, single , .1. genisteUa. 



1. N. genistella, Dup. {davisellus, Newm.) 24-27 mm. 

 Forewings light brownish-ochreous, reddish-tinged, with some 

 scattered blackish scales ; veins in disc and on termen sufFusedly 

 streaked with whitish ; lines hardly paler, internally more or 

 less distinctly blackish-edged, first edged anteriorly by a spot 

 of raised black scales below middle ; a blackish discal dot. 

 Hindwings light fuscous. 



Hants, Dorset, Wilts, local ; France, Spain, Corsica ; 7. 

 Larva pale greyish-ochreous ; dorsal line blackish-brown ; sub- 

 dorsal and spiracular light reddish -fuscous ; lateral broad, 

 l)lackish -brown ; head blackish - brown, freckled with pale 

 ochreous ; a lateral grey-whitish black-centred spot on .3 and 

 12 : in a loose web on TJlex ; 9-6. 



2. N. hostilis, Stph. 21-24 mm. Forewings less elongate, 

 rather dark fuscous, sometimes reddish-tinged, irrorated with 

 whitish ; basal area suffused with brown-reddish ; lines pale, 

 edged with dark fuscous, first anteriorly broadly edged with 

 blackish except towards costa ; two dark fuscous transversely 

 placed discal dots, connected with doi'sum by an irregular 

 darker shade. Hindwings fuscous. 



Kent, Surrey, Worcester, Hereford, scarce and local ; France, 

 Germany ; 6. Larva blackish-brown or dai'k I'eddish-brown ; 

 subdorsal line double, indistinct, pale yellowish or greyish-ochre- 

 ous ; lateral faint, pale ochreous ; subspiracular double, whitish 

 or pale yellow; head black, freckled with yellow -ochreous : 

 in a silken tube amongst spun leaves of Pojjulus tremula ; 7-9. 



11. Plodia, Gn. 



Face with conical projection of scales. Antennae in $ 

 shortly ciliated. Labial palpi moderately long, porrected, with 

 appressed scales, terminal joint rather short, pointed. Maxillary 

 palpi short, filiform. Forewings in $ with costal fold beneath, 

 enclosing hair-pencil ; 2 and 3 sometimes stalked, 5 absent, 9 

 absent. Hindwings : cell nearly reaching ^, 3 and 4 connate, 

 7 anastomosing with 8 to beyond middle. 



