AND THEIR TRANSFORMATIONS, 67 
apical portion of the wing being occupied by a large, oval, variegated, ocellated spot, tinged with purplish, and 
edged at the base with a brown lunule ; the outer and hind margin being edged with a slender, dark line. The 
hind wings are pale ashy, with a similar dark edging, and a dark, discoidal arch ; the anal angle brown. 
The caterpillar is ashy-coloured, with the under side purplish, and a pale lateral line ; it has only two dorsal 
tubercles. It feeds on the poplar and willow in June and September, the moth appearing in May or the 
beginning of June and August. It appears to be distributed over the greatest part of England, but is nowhere 
of common occurrence. 
LEIOCAMPA,* Srepuens. (PHAZOSIA, Hisner.) 
Mr. Stephens characterises this group as having the fore wings elongate, obtusely denticulated, and acute at 
the tip, with one lobe on the hind margin; the thorax not crested; the antenne are bipectinated in both sexes 
to the tip ; the pectinations shorter in the female ; and the palpi very minute: the larve are smooth on the 
back, the penultimate segment alone having a dorsal tubercle; and the anal segment furnished with a pair of 
perfect prolegs. The cocoon is composed of pieces of wood, united by silk. Curtis and Boisduval regard this 
group only as a section of Notodonta. 

SPECIES 1.—LEIOCAMPA DICTA. Puare XIII., Fie. 16, 17. 
Synonymes.—Phal. (Bomb.) dictea, Linneus,S. N. 2, 825, No, | No. 58; Haworth ; Curtis (Notod. tremula). 
60; Wien Verz., Hiibner, Ochsenheimer (Notod. d.), Fabricius, Leiocampa dictea, Stephens; Wood, Ind. Ent. t. 5, f. 27. 
Esper. Phalena trepida, Donovan, 7, plate 239, fig. 1 ; Leach, Samouille. 
Phal. (Bomb.) tremula, Linneus, Faun. Suec. Syst. Nat. 2, 826, Pheosia dictea, Hiibner, Verz. bek. Schm. 
This species varies from 2 to 24 inches in the expansion of the fore wings, which are of a greyish-white 
colour towards the costa, except at the tips, broadly clouded with brown, with two or three black lines near the 
apex ; the posterior margin of the wing is broadly black, through which runs an interrupted, whitish line, and 
there are several greyish lines at the anal angle; the apical margin is marked by a blackish line, preceded by a 
white one ; the hind wings are white, with the anal angle brown, through which runs a white line. 
The caterpillar is shining, dark, reddish brown, often with a violet tinge, the penultimate segment conically 
elevated. It feeds on all kinds of poplars, willows, and on the common birch ; and is found in June and 
October, and the imago occurs in June and August. It is not a common species ; but is met with in the woods 
near London, near Dover, York, and in Norfolk and other localities. 
——_—$ 
SPECIES 2.—LEIOCAMPA DICTOIDES. Puarte XIII., Fie. 18, 19. 
Synonymes.— Bombyx dicteoides, Esper, Brahm ; Hiibner, Bomb. Phaosia dicteoides, Hiibner, Verz. bek. Schm. 
tab. 6, f. 23, 24 ; Haworth. Bombyx Gnoma, Fabricius. 
Leiocampa dicteoides, Stephens; Wood, Ind. Ent. pl. 9, fig. 28. 
This species is generally rather smaller than the preceding, which it greatly resembles, but is distinguished by 
being darker-coloured, with the hind margin more broadly brown, on which is a white stripe bordering a black 
Se eee 
* Derived from Aewos, levis, and Kaun, eruca ; the caterpillars being smooth. 
EY 

