184 THE GENERA OF BRITISH MOTHS. 
golden bands and spots. A. éteredla, which isa great rarity, has the front wings white, with slender golden 
transverse bands. A. arceuthina, with the front wings entirely of a shining bronzy green. A. precocella, with the 
front wings of a shining pale ochre, flushed with a tinge of violet. A. Awrulentella, with front wings of the same 
colour as the preceding species, but having the inner margin white, and the head white, instead of whitish yellow ; 
and A, decimella, which is however a doubtful species. 
The genus Cedestis. The insects assigned to this genus have the labial palpi short and smooth, thickened 
with scaly hairs. In repose the insects do not lower the head and elevate the abdomen, as in the preceding 
genus. There are two British species. 
Cedestis farinatella (the Slight-barred, No. 9). The Caterpillar of this species is pale brownish green, 
with the head and second segment black. It feeds in the foliage of the Scotch Fir, in February and March, and 
the perfect insect appears in June and July. It has been recently observed in great abundance near Scarborough, 
at Darenth Wood, and in other localities. 
The other species, C. Gysselinella, which is very rare, resembles the preceding, but may be distinguished by 
the more yellow, or rather golden, tone of the markings. 
The genus Ocnerostoma. ~The insects assigned to this genus may be at once distinguished from the pre- 
ceding, by the apparent absence of the palpi, which are so short as to be almost imperceptible. There is but one 
British species. , 
Ocnerostoma Piniariella (the Pine Ocnerostoma, No. 10). The Caterpillar of this species is deep glossy 
brown, the head and second segment black. It feeds in the foliage of the Scotch Fir, in March and May ; the 
perfect insect appearing in April, May, and July. It has been recently noticed in great abundance in several 
widely distant localities. 
The genus Zelleria. The insects assigned to this genus have the head smooth in front, and rough at the 
back ; the antenne are short and thick. The labial palpi are short and scaly, and pointed upwards, having the 
terminal joint blunt. The fore wings are slightly hooked and the hind wings pointed. There are three British 
genera, all more or less scarce, and the larva of all of them remain as yet undescribed. 
Zelleria hepariella (the Small Ochreous Zelleria, No. 11). The time of the appearance of the Cater- 
pillar of this species is unknown, but the perfect insect comes forth in August and October, being most probably 
double-brooded, the insects of the last brood appearing again in the early spring after hybernation. It has 
been taken at Pembury, Castle Eden Dene, Mickleham, and Conway. 
The other species are the following: Z. insignipennella, which is larger than the preceding, and has the 
inner margin paler, is thought by some to be only a variety of the preceding. Z. fasciapennella is very distinct, 
having the fore wings of a pale gray-colour, with a darker tone of the same colour, and marked with four 
longitudinal rows of yery small black dots. It has been taken on the Pentland Hills, near Edinburgh. 
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