Or 
or 
THE GENERA OF BRITISH MOTHS. 
PLATE XXII. 
No. 1.—The Wild Arrach (Trachea Atriplicis). No, 8.—The Ealing’s Glory (Miselia Oxyacanthe). 
No. 2.—The Caterpillar of the Wild Arrach, No. 9.—The Double-spot Brocade (IMiselia Bimueulosa). 
No. 3.—The Portland Moth (Hapalia Precox), No, 10.—The Peach Blossom (Thyatira Batis). 
No. 4.—The Marvel-du-Jour (Agriopis Aprilina). No. 11.—The Caterpillar of the Peach Blossom). 
No. 5,—The Caterpillar of the Marvel-du-Jour. No. 12.—The Buff Arches (Thyatira Derusa). 
No. 6.—The Green Brindled Dot (Valeria Oleagina). No. 13.,—The Caterpillar of the Buff Arches, 
No. 7.—The Caterpillar of the Green Brindled Dot. 
Tue genus Trachea, of Hiibner, as at present restricted, contains but one British species. The genus is distin- 
guished by the antenne being simple in both sexes, by the squareness of the thorax, which is crested in the middle, 
and by the tufts on the segments of the abdomen. The fore wings are somewhat elongate and triangular ; the 
palpi have the terminal joint distinct and knob-like. The Caterpillars are smooth, and the penultimate segment is 
somewhat angulated, as in those of the Mamestre. 
Trachea Atriplicis (the Wild Arrach, No. 1), by some placed in the genus Hadena, generally measures about 
an inch and three-quarters across the expanded wings. It is a beautiful insect, and considered rare, though it has 
been taken in various districts. The Caterpillar (No. 2) is generally of the colour of the one figured, but from the 
coloured figure of Résel, it would seem that it is occasionally flesh-coloured. It feeds on Atriplex hortensis, and some 
kinds of Dock. The perfect insect appears in June and September. 
The genus Hapalia now receives its original name, that adopted by Hubner in 1818, in preference to the later 
denomination, Actebia, adopted by Stephens. Theantenne are slightly ciliated beneath in the males ; the palpi are 
short and obtuse ; the fore wings narrow and truncated. The Caterpillar is smooth, and undergoes its change 
‘in the earth. There is but a single British species. 
Hapalia Precox (the Portland Moth, No. 3) is a very handsome insect, the green tone of the anterior wings, 
with their white and black markings, forming a striking and agreeable contrast with the rich brown of the hinder 
ones. The Caterpillar is brownish on the upper side, with a slender dorsal line of white, irregularly bordered with 
black; the sides are grayish, powdered with black specks. It is found in May, feeding on the Galium verum, and 
the Moth appears in August. It appears to be a coast insect, having been first found in the Isle of Portland, and 
subsequently near the coast, in Ireland, and in the north of England ; but it is still rare. 
The genus Agriopis, founded by Boisduyal, contains but a single British species, removed from the Miselie on 
account of the somewhat flattened form of Caterpillar. The insects forming the genus Agriop’s, as defined by Bois- 
duval, have the antenne pubescent, with a tuft of hairs at the base ; the abdomen is robust and slightly crested, and 
the fore wings thick, with very distinct lines and markings. The larve feed on trees, in the bark of which they 
conceal themselves during the day. They burrow very deeply in the ground to undergo their change, the pupa 
being enclosed in an earthen cocoon. 
Agriopis Aprilina (the Marvel-du-Jour, No, 4) is a remarkably fine insect ; the pale green‘of the fore wings 
being beautifully variegated with markings of black and white, and the hind wings brown, with pale bands nearly 
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