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BRITISH MOTHS 
DESCRIPTION OF PLATE XV. 
Insects.—Fig. 1. Cerura integra. 
a Fig. 2. Cerura bicuspis. 11. The Caterpillar. 
< Fig. 3. Cerura arcuata. 
<s Fig. 4. Cerurafurcula (the Kitten-moth), 5. The Caterpillar. 6. Another Caterpillar of the same. 
a Fig. 7. Cerura latifascia (the broad-barred Kitten-moth). ; 
‘2 Fig. 8. Cerura bifida. 9. The Caterpillar. 
sb g. 10. Cerura fuscinula, 
g. 12. Cerura vinula (the Puss-moth). 13. The Caterpillar. 
FQ 3 
T4 
4 Fig. 14. Cerura erminea (the Ermine Puss-moth). 15. The Caterpillar. 
Prants.—Fig, 16. Salix Russelliana (the Bedford Wiliow). 
= Fig. 17. Betula alba (the common Birch). 
In the small Puss-moths I have shown what are considered the distinct species of continental entomologists, as figured by Hiibner 5 viz. 
C. bieuspis, C. bifida, C. furcula, and C. fuscinula. Of the first three one only appears to me to be, beyond doubt, British, viz. C. furcula, 
the specimen I have drawn agreeing perfectly with specimens in the British Museum and other collections. C. fuscinula, the grey one, is said to 
have been once taken, and in the possession of Mr. Devignes of the Entomological Society ; but the British specimens said to be C. bicuspis and 
C. bifida, which I have seen, appear to me to be merely variations of C. furcula, which I am farther induced to consider the only British 
species as it is the only one that has been found in the larva state, Standish’s drawing of which I have figured, and which, though drawn with 
a somewhat different feeling, accords well with Hiibner’s figure. Yet, 
notwithstanding, English collectors not only claim all the continental 
species, but also other indigenous ones, namely, C. latifascia of Curtis, 
and C, integra and C. arcuata of Stephens ; and perhaps not without 
some show of reason; I have therefore figured these specimens, and 
give Mr. Stephens’s ingenious definition of the asserted British species 
below. I do not give the above opinion as mature, not having been 
able to see a sufficient number of specimens. I must add, however, 
that I put but little faith in the furcation of the vein as a character, as 
T have observed every degree of furcation, even from a mere tendency 
to fork, (observable only with a microscope) to a complete and deep 
branching, and this without any accordance with the other specific 
distinctions. 
C. bicuspis, No. 1, and C. integra, No. 2, have the first nervure 
of the hind wing simple, bicuspis having the exterior dark band of the 
fore wing imperfect or nearly obliterated, integra having it perfect and 

well defined. 
C. furcula, No. 3, arcuata, No. 4, and C. latifascia, No. 5, have the first nervure of the hind wing slightly forked; furcula having the 
exterior dark band of the fore wing imperfect or nearly obliterated, arcuata having it perfect, and also the marks nearer the tip well defined all 
across the wing in a somewhat arched form. Latifascia has the whole dark portion of the upper wing much wider than furcula or arcuata. 
C. fuscinula, No. 6, and C. bifida, No. 7, have the first nervure of the hind wing deeply forked, fuscinula having the exterior dark band 
of the fore wing imperfect, and bifida having it well defined. 
I have not figured the chrysalids of any of the above species, as they do not present any unusual peculiarities of form or colour, notwithstanding 
the singular conformation of the caterpillar. For the same reason I did not think it worth while to figure the chrysalids of Stauropus Fagi and 
the Notodonts in plate 13. 
C. bicuspis, C. bifida, C. furcula, and C. fuscinula, are from Hiibner; C. arcuata and C. integra are from the specimens in the cabinet of 
Mr. Stephens ; and C. latifascia is from Curtis’s figure. CC. vinula is from a specimen in the British Museum, and C. erminea from a foreign 
specimen in Mr. Stephens’s cabinet. The larva of C. vinula is froma drawing made from nature, and all the others are from Hiibner, with the 
exception of the one of furcula, after Standish’s drawing. H,. N. H. 
