THE GENERA OF BRITISII MOTHS. 85 
PLATE XXXIV. 
No. 1.—The Lilac Beauty (Pericallia Syringaria). No. 7.—The Caterpillar of the Brimstone Moth. 
No, 2.—The Caterpillar of the Lilac Beauty. No. 8.—The Swallow-tailed Moth (Ourapteryx Sambucaria). 
No. 4.—The Orange Moth (Angerona Prunaria). No. 10.—The Cocoon of the Swallow-tailed Moth. 
No. 5.—The Caterpillar of the Orange Moth. No. 11.—The Light Emerald (Budalimia Margaritaria). 
No. 6.—The Brimstone Moth (Opistograptis Crategata). 
\ 
| 
| 
No. 3.—The Chrysalis of the Lilac Beauty. | No. 9.—The Caterpillar of the Swallow-tailed Moth. 
| No, 12.—The Barred Red (Bulopia Fasciaria). 
‘Tur genera of Moths represented in this Plate continue the illustration of the sub-family Odopteridi. 
The genus Pericallia is well distinguished from the last genus, both in the perfect and preparatory stages, 
In the perfect state both sexes have the antenne pectinated, while it is only the males that are so distinguished 
in the genus Odoptera. In the Caterpillar state the two slender excrescences on the eighth segment form a peculiar 
and sufficient generic distinction. There is only one British species. 
Pericallia Syringuria (the Lilac Beauty, No. 1). This is a very pretty insect, very closely resembling 
O. Illwnaria, figured in the last Plate, from which, and all the Odoptere, it is however distinguished by the 
peculiarities alluded to in describing the generic characters. The Caterpillar (No. 2) feeds on Privet, Lilac, 
Syringa, and other shrubs, as well as the Clematis, on which it is represented. The Moth is found in gardens and 
woods, and is not common, though widely dispersed. Exeter, Halton in Buckinghamshire, and Wavendon near 
Newport Pagnel, are recorded as places where it has occurred in some abundance. 
The genus Angerona. The insects assigned to this genus are distinguished from those belonging to the 
preceding by the greater slenderness of the body, the larger proportion of the wings, and the smooth outline of the 
anterior pair, which are free from the irrecular projections which distinguish the ‘‘Thorns.” The antenne are 
slender and short, being pectinated, but not deeply, in the males. The Caterpillars are somewhat elongate, 
with protuberances on the fifth, ninth, and twelfth, and two small projecting points on the anal segments, The 
pupa is enclosed between leaves. 
Angerona Prunaria (the Orange Moth, No. 4) is one of the commonest Moths of our woods and copses. It 
is extremely variable in colour; the orange ground being sometimes of a pale straw colour, and the darker portion 
awarm grey. The wings of the female (which is rather larger than the male) are entirely of the paler colour, 
which gives it the appearance of a distinct species. The Caterpillar (No. 5) varies in intensity of colour, like the 
perfect insect. It feeds on the foliage of the Plum, from which it takes its specific name, and also upon several 
other trees. It is common almost everywhere. 
The genus Opistograptis is distinguished by the antenne of the males, which are so slightly ciliated as to 
appear simple. The palpi are unusually short, and the margins of the wings are free from indentation. The 
Caterpillars have two more ventral legs than those of the last genus, but they are only rudimental, and not used 
in walking. The Chrysalis is enclosed in a thick cocoon. The term Opistograptis, adopted by Hiibner in 1816, 
has been preferred to that of Duponchel, Rumia, which only dates from 1829. 
Opistograptis Crategata (the Brimstone Moth, No. 6). This pretty and common gpecics is abundant 
