AND THEIR TRANSFORMATIONS. 35 
the other species by the following characters. The general colour of the body is brownish-black ; the head and 
c 2 are re oe- ° ; or ie ‘a 4 . - . > 
palpi are orange-coloured. The thorax has a large orange patch on each side in front, and two duller ochre 
patches on the dise behind. The abdomen has the first and second joints black, except the base of the second, 
which is orange; the third segment orange, with the hind margin black ; the fourth entirely dark-brown ; the 
fifth and sixth orange also, with the hind margin brown, the remainder orange. The margins of the wing are 
broader than in the next species, and ochre-brown. The antennee are dark above, but ferruginous beneath ; 
and the legs orange, varied with tawny. 
The caterpillar is a thick whitish fleshy grub, which feeds upon the wood of the trunks of willow and aspen 
trees, to which it sometimes occasions great damage. The pupa is elongated, and of a dark chestnut colour. 
The caterpillar changes to the chrysalis in April, and the perfect insect is produced towards the end of June. 
The Sesia Sireciformis of Laspeyres and Hibner, is evidently described from specimens of this species which 
> = : ee aS on ' + 4 ° ee) 
have become greased. 8S. Tenebrioniformis of Hiibner and Esper appears also intended for similar individuals. 

SPECIES 2.—SPHECIA BEMBECIFORMIS. THE LUNAR HORNET MOTH. 
Plate vii. fig. 1 and 15. 
Synonymes.—Sphinx crabroniformis, Lewin in Linn. Trans., Sesia Bembeciformis, Hiibner, Sphinx, pl. 20, f. 98; Ochsenhei- 
v. 3, pi. 3, fig. 6—10 ; Haworth ; (Sesia cr.—nec W. V. nec Fabricii, mer. 
nec Hiibneri, nec Laspeyresii) ; Donovan's Brit. Ins., v. 13, pl. 436. Trochilium Bembeciforme, Curtis, Brit. Ent., pl. 372, fig. *. 
Trochilium crabroniforme, Stephens. fEgeria Bembeciformis, Newman, Ent. Mag. i., 75. 
The expansion of the wings in this species is less than in the preceding, varying from 18 to 20 lines. It is 
of adarker ground-colour, with a black head; the palpi above, yellow. The thorax has a narrow transverse 
line of the same colour on the neck: there are also two obscure patches of the same colour at the side of the 
scutellum. The abdomen has the first and second segments entirely, as well as the broad posterior margin of 
the third and fourth, black, the remainder of the fourth being dark-red brown ; the remainder of the abdomen 
is orange-yellow, with the hind margin of the segments darker. The margins and cilie of the wings are narrow ; 
the thighs are brown; the tibie very densely clothed with orange hairs. 
The caterpillar is whitish, with a brown spot formed by the ocelli on each side near the legs. It feeds upon 
the wood of the sallow, occasionally committing much devastation in the osier grounds, as we learn from 
Mr. Bree’s Memoir, published in the new series of the Magazine of Natural History, vol. 1, p. 19; (and see 
Loudon’s Arboretum Britannicum, p. 1482; Lewin in Linn. Trans., v. 3; and Blomer in Mag. Nat. Hist., Ist 
ser., No. 21.) The caterpillar spins its cocoon in November, but does not change to the pupa till May ; and the 
imago appears in July. 
It is much rarer than the preceding species. Darenthwood, and near Newcastle, Norfolk and Suffolk, are 
recorded localities. The Rev. W. 'T. Bree has taken it near Dudley, and reared it from larve found near 
Coventry ; and I have taken the males sitting sunning themselves on the leaves of osiers on the Surrey side of 
Hammersmith bridge, and alternately raising and depressing the abdomen, but on the least approach of danger 
they fall to the ground. 
. + . e e e . . . . t— ° a oe 
The first notice of this species which I can find is that of Lewin in the Linnean Transactions, where it 
; : é Sees 
appeared under the name of Crabroniformis. The same name_had, however, previously been given in the Wiener 
Verzeichniss to the Linnzan apiformis; so that on that account alone it ought to be rejected, as it is a beneficial 
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