—— a 
190 ARGYRESTHID&, 
plex; subdorsalis simplex; posteriores: vena apicalis ante apicem 
exit, infra eam vena simplex, et venze alteree due simplices e venula 
transversa. 
Head rough, the face smooth. Antenne shorter than the anterior 
wings, with distinct joimts, the basal joint elongate and thickened. 
Tongue none. Labial palpi rather short, thickened, hairy. Wings with 
long cilia, the anterior elongate, the posterior lanceolate. In the ante- 
rior wings six or eight veins proceed from the hinder portion of the 
discoidal cell; the apical vein is simple; the subdorsal vein is simple. 
In the posterior wings the simple apical vein terminates above the apex ; 
below it is a simple vein, and two other simple veins from the trans- 
verse vein. 
Only two species are known in this genus; they frequent fir- 
trees in the middle of summer; in repose they sit appressed to 
the surface on which they rest. 
1. farinatella (Zcll.), Dup. L. F. xi. 473. pl. 305. f. 11 (1838) ; 
F.v. R. pl. 74. £4; Zell.; Sta.—subfasciella, Step.? lis anticis 
albido-griseis, fusco-pulveratis, fascia ante medium, nebulaque postica 
fuscis. Exp. al. 5% lin. 
Head whitish-grey, with some darker hairs in front. Face and palpi 
grey. Antenne white, annulated with fuscous. Anterior wings whitish- 
erey, much irrorated with fuscous, with a fuscous fascia before the mid- 
dle, followed by a whitish fascia of the undusted ground-colour; the 
remainder of the wing is nearly entirely fuscous, except a whitish spot 
on each margin before the apex; cilia greyish-white. Posterior wings 
rather broad, pale grey, with paler cilia. 
Common among fir-trees in June and July. Illustrations of 
the transformations of this species are promised in the forthcommg 
number of Mr. Logan’s ‘ Illustrations of Scottish Lepidoptera.’ 
2. Gysselinella (Kuhl.), Dup. L. I’. xi. 461. pl. 305. f. 4 (1838). 
—Gysseleniella, F. v. R. pl. 74. £35; Zell.; Lienig; Sta.  Alis anticis 
albido-griseis, griseo-pulveratis, fascia lata obsoleta basali, fascia dis- 
tinctiore ante medium, nebulisque posticis dilute aureo-brunneis. Exp. 
al. 54 lin. 
Head whitish-grey. Face and palpi white. Antenna whitish, with 
pale fuscous annulations. Anterior wings whitish-grey, dusted with 
grey, with a rather indistinct pale golden-brown fascia near the base, and 
another more defined just before the middle, and some pale golden- 
brown blotches beyond the middle and at the apex; cilia greyish-fus- 
cous. Posterior wings pale grey, with paler cilia. 
Occurs among fir-trees in June and July. The only British 
specimen I have seen is in Mr. Allis’s collection; it was taken by 
Mr. Weaver. 
