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58 BRITISH MOTHS 
SPECIES 2.—LASIOCAMPA TRIFOLII. Purate XI., Fra. 5, 6, 7. 
Synonymes.—Phalena (Bomb.) Trifolit, Villars; Lewin, Linn. Lasiocampa Trifolii, Schrank; Stephens; Wood, Ind. Ent., 
Trans., vol, 3, pl. 4, fig. 1—4; Wilkes, pl. 47, upper figure ; but not | pl. 6, fig. 41. 
Pachygastria Trifolti, Hiibner, Verz. bek. Schm. 
of Schiffer, who figures Rubi under this name. 
This species varies from 2} to 23 inches in the expanse of the fore wings, which, as well as the other parts 
of the insect, are of a rusty-grey colour, the fore wings having a whitish central spot, and a pale livid or ochre- 
coloured stripe beyond the middle of the wing, which is curved outwards towards the hinder margin. The hind 
wings are ordinarily destitute of the central fascia. 
The caterpillar is described by Fabricius as solitary, pilose, dirty brown, with the incisions spotted with 
blue, and a red ring round the neck ; it feeds upon trefoil, medick, and plantain, in the early summer months, 
inclosing itself in a compact oval cocoon ; the imago appearing in July and August. This is a rare species, but 
is found in the New Forest in some plenty. Mr. Haworth states that the caterpillars secrete themselves by day 
under loose stones, but adds that the thick-kneed bustard preys upon them, ingeniously turning over the stones 
in order to come at them, 
Lastocampa Mepicacinis, Ochsenh.; (Curtis, B. E., pl. 181; Wood, Ind. Ent., t. 6, f. 42; Wilkes, 
pl. 47, fig. infer. ;) is most probably only a variety of the preceding, differing in having a pale stripe towards 
the base of the fore wings, and an indistinct fascia across the hind ones. The larva, according to Hsper’s 
figure copied by Curtis, is however different, being of a dull fulvous colour, with black rings and white oblique 
lateral stripes; but Mr. Stephens states that Mr. Ingpen reared this variety from a larva, which differed in no 
respect from those of L. Trifolii, with which it was found in company, which is also the case with the perfect 
specimens which have occurred. Boisduval sinks it into a variety of Trifolii. 
SPECIES 3.—LASIOCAMPA ROBORIS. Puare XI., Fic. 8—12. 
Synonymes.—Ph. (B.) Roboris, Schrank; Stephens; Wood, | Albin, pl. 18; Wilkes, pl. 46; Harris, Aurelian, pl. 29, fig. a—f}; 
Ind. Ent., t. 6, f. 44, 44, (Las. R.) Duncan, pl. 17, f. 3. 
Phalena Quercus, Fabricius ; Donovan, vol. 3, pl. 104, f. 1, 2; Pachygastria Quercus, Hiibner, Verz. bek. Schm. 
This species varies from 21 to 34 inches in expanse. The males are of a dark rusty or chesnut brown, the 
fore wings having a central white spot, beyond which is a broad yellow fascia, gradually softened into dark 
chesnut to the tip of the wing, running across all the wings. The female is generally of a buff or pale ochre 
colour, with similar markings. Varieties however occur, such as our fig. 9, in which the tips of the wings of 
the male do not gradually become darker coloured, and our fig. 11, in which the females are much darker 
coloured than ordinary. The caterpillar is dirty clay-coloured, with white rings, and white oblique stripes 
above the feet. It feeds on the oak and various other trees, and forms a compact egg-like cocoon, whence the 
species has acquired the name of the great egger moth. The moth appears at the end of July, the males flying 
with great rapidity during the day. It is very abundant in the neighbourhood of London and other parts of 
the country. 
SPECIES 4.—LASIOCAMPA QUERCUS. Puare XI., Fie. 13. 
Synonymes.— Phalena (Bomb.) Quercus, Linneus ; Schrank ; Stephens; Wood, Ind. Ent., t. 6, f. 43. 
This species, if it really be distinct, measures from 23 to 31 inches in expanse. It differs from the preceding 
(which I should consider as a variety of it) in being darker coloured, with a distinct yellow patch at the base 


