178 THE GENERA OF BRITISH MOTHS. 
The other species, S. hwmerelia, has the front wings of a bright light brown, with a white line down the 
front. The Caterpillar feeds between the leaves of Artemisia campestris. 
The genus Plewrota. The insects assigned to this genus have the labial palpi rather long and compressed, 
the second joint thickly clothed with hair, and the terminal joint short, slender, and smooth. The wings are 
narrow and pointed, and the hind wings are indented at the fringed edge near the points. There is but one 
British species. 
Pleurota bicostella (the Light Streak, No. 5). The Caterpillar of this species is unknown, but the perfect 
insect is very plentiful and appears in May and July. It has been recently observed in great abundance at 
Birkenhead, Manchester, Scarborough, and several other places. 
The genus Harpella. The insects assigned to this genus have the labial palpi long and compressed. The 
second joint is scaly, and the terminal one slender and pointing upwards. The wings are ample, and the fringes 
of the hind wings rather deep. There are two British species. 
Harpella Geoffrella (the Geoffreyan, No. 6). The Caterpillar of this species is unknown. The perfect 
Moth appears in May and June and is very abundant in most places. It has been recently observed in great 
abundance at Kingsbury in Middlesex, Tenterden in Kent, Bristol, and many other localities. 
The other species, H. Bracteella, is only recently established as British, having been taken near Gateshead. 
It has the front wings bright yellow at the base, and from the middle to the end dark brown; on the front edge 
a dark bluish streak at the base, and a yellow spot in the brown towards the tip. There are also some transverse 
bluish streaks in the dark portion of the wing. The larva feeds in decayed wood in February and April. It is 
of a dull gray colour with a brown head, and the second segment has two brown plates. 
The genus Hypercallia. The insects assigned to this genus have the labial palpi greatly elongated and 
bent outward and upward, the terminal joint being perpendicular. The antenne are of moderate length, 
and slightly pubescent in the males, the wings are long and angular. There is but one British species. 
Hypercallia Christiernana (the Christiernian, No. 7). The Caterpillar of this species is greenish gray, 
with a whitish line along the back. The head and second segment are greenish gray. It feeds on Polygala in 
May. The perfect Moth appears in June and July. This pretty insect, with its yellow wings delicately 
chequered with scarlet, is sure to attract the attention of the young collector by its beauty, but it is not often 
met with. Mr. Stephens first took it at Darenth Wood, and it has since been taken at Sevenoaks, Greenhithe, 
and Castle Eden Dene. 
The genus Dasycera. This genus with the six following, @eophora, Egoconia, Endrosis, Butalis, Atemelia, 
and Pancalia, are formed by some authors into a separate family, distinguished as the @cophoride, as the genus 
CGcophora alone furnishes more than half the species of which it is composed. I shall, however, follow the 
arrangement at present in use in the collection of the Museum, though it is possible that the one just referred 
to will be eventually adopted, as it appears to be founded upon sufficient affinities of the genera so grouped 
together. The genus Dasycera, here considered as belonging to the family Gelechide, may be characterised as 
follows. The antenne thickened at the base with hairy scales. The labial palpi reflexed and very short, with 
the terminal joint slender and pointed ; the front wings elongate, and the hind wings having an abrupt angle 
next the body. There are two British species. . 
Dasycera Oliviella (the Olivierian, No. 8). The larva of this pretty insect is unknown. The perfect Moth 
appears in July and August. It has been recently taken at Kingsbury, Lewes, Plymouth, and other places. 
The other species, D. sulphurella, has the front wings brown, dusted with yellow, with two yellow 
streaks from the base, and a small yellow patch on the inner margin, and a smaller one on the front margin; 
the hind wings are pale yellow, brownish at the tips. It is a very abundant species, and several localities are 
recorded where it has been recently noticed in very great abundance, as Bristol, Cambridge, Lewes, Manchester, 
Kingsbury, &c., &c. : 
T he genus @eophora. The insects assigned to this somewhat extensive genus have the antenne of the 
males ciliated. The labial palpi are short. The wings vary in form in the different species, but are nearly 
all of different shades of yellow. There are seventeen British species, 
