192 ARGYRESTHID®. 
rected, or almost ascending, rather short, thickened with scales ; the ter- 
minal joint blurt. Wings with long cilia, the anterior subfaleate, the 
posterior lanceolate. In the anterior wings, the simple apical vein runs 
into the costa before the apex; below it are five veins, of which the 
penultimate and the antepenultimate proceed from the same point ; the 
subdorsal vein is furcate; the apex of the submedian vein is thickened; 
in the posterior wings the apical vein has a long fork terminating above 
and below the apex; the median vein is trifid. 
Only three species are known in this genus, if indeed there be 
more than than two, as it is not improbable that Aeparied/a and in- 
signipennella may ultimately not prove specifically distinct. ‘The 
larvee of none of them are known, though (to my shame be it 
-said) I have myself bred epariel/a, but have no recollection 
whatever of the larva; in the cage in which I bred it was an 
ash-leaf, that had evidently been eaten ; it emerged from its thick 
white cocoon on the 27th of July, 1852*. 
The first two species appear at the end of summer and autumn, 
and, hybernating, are occasionally met with in the spring ; fascia- 
pennella, taken by Mr. Logan among Vacciniwn Myrtillus, on 
the Pentlands, in September, may probably likewise hybernate. 
1. hepariella (Mann), Sta. Cat. p. 22 (1849).—gryphipennella, 
Haw.? Alis anticis rufo-ochraceis, postice fuscescentibus, puncto obso- 
leto supra angulum analem fusco ; capillis luteis, Exp. al. 5} lin. 
Head, face, and palpi luteous. Antenne fuscous, with paler annu- 
lations. Abdomen above grey, beneath reddish-orange, the sides white. 
Anterior wings rufous-ochreous, posteriorly somewhat fuscous, with an 
appearance of a small darker spot above the anal angle; cilia rufous- 
ochreous at the apex, grey at the anal angle. Posterior wings dark 
grey, with grey cilia. 
Occasionally met with in the south of England, from August 
to October, and again in spring, but nowhere common. 
2. insignipennella, Sta. Cat. p. 22 (1849). Alis anticis rufo- 
ochreis (dorsum interdum dilutiore), postice saturatioribus, nebula fus- 
cescente disci pone medium ; capillis luteis. Exp. al. 74 lin, 
Head, face, and palpi luteous. Antennze fuscous, with paler annula- 
tions. Anterior wings rufous-ochreous (frequently paler towards the inner 
margin), posteriorly dark, with an obscure fuscous blotch on the disc 
beyond the middle; cilia rufous-ochreous at the apex, grey at the anal 
angle. Posterior wings dark grey, with grey cilia. 
Appears in autumn and again in spring; has occurred at 
Mickleham and Dartford Heath. 
3. fasciapennella (Logan), Sta. Cat. p. 22 (1849). Allis anticis 
dilute griseis, obscuriore nebulosis, atomis nigris in seriebus quatuor 
* The day on which Professor Zeller finished his visit to England. 
