LOPHOPTERYX — OdONTOSIA. I39 



a slight cocoon under moss. The only species is S. Argentina (W. V.). The fore-wings are 

 olive-grey, varied with darker. There is a large triangular silvery spot above the inner margin 

 before the middle, and a small silver lunule behind it ; and the space between them is varied 

 with orange. Expands from \\ to \\ inches. It inhabits the southern portions of Central 

 Europe in April and May, but is scarce. The larva is of a mixed reddish-brown and grey, 

 faintly shining, and spotted with yellowish on the sides. It feeds on oak from June to 

 August. 



GENUS XI.- -LOPHOPTERYX (STEPH.). 



The thorax is densely covered with scaly hairs, with a large crest, elevated in front, and 

 depressed in the middle ; the abdomen is slender. The fore-wings are pointed at the tips, 

 and the hind margins are dentated ; the hind-wings are broad and rounded. The larvae have 

 sixteen legs, short, scattered, fine hairs, and excrescences on the last segment but one. They 

 change to pupse beneath the ground. 



* I. L. Ciicullina (W. V.).— The fore-wings are rusty-brown ; the costa is pale ochre-yellow, 

 and the hind margin is alternately white and pale grey. There is an indistinct dentated black 

 transverse line beyond the middle ; and the hind-wings are brownish-grey. Expands about 

 \\ inches. Widely distributed in Central Europe in May and June, but rather scarce. The 

 larva is green or pale red, with a dark heart-shaped spot on the back of the neck, a dark 

 line on the back, two short protuberances on each of the middle segments, and a pyramidal 

 elevation on the last segment but one. It feeds on maple in July and August. 



* 2. L. Camelina (Linn.). — The fore-wings are rusty-brown, varied with rusty-yellow, with 

 black zigzag transverse lines. The hind-wings are yellowish-grey, with the hind margin 

 brownish, and a bluish-black spot at the anal angle. The. variety Giraffina (Hiibn.) is much 

 darker, and nearly blackish. Expands from li to if inches. It is common in most parts of 

 Europe from April to June. The larva is green or reddish, and the back is whitish. There 

 is a yellow stripe on the sides, dotted with red, and two red points on the 12th segment. 

 It feeds on oak, birch, &c., from June to October ; and when at rest it leans its head and 

 front segments backwards, and raises the hinder part of its body at the same time. The 

 larvae are gregarious when young, but afterwards separate. The moth and larva are figured 

 at PI. 31, Fig. 3, a, h. 



GENUS XII.— ODONTOSIA (lltJBN.). 



The thorax is covered with smooth hair, crested behind, and the hind margins are 

 dentated. The fore-wings are pointed at the tips, and they project a little in the middle ol 

 the hind margin ; and the hind-wings project at the anal angle. The larvae are naked and 

 wrinkled, with sixteen legs, but with no protuberances, and change to pupae in a soft cocoon 

 in the ground. 



* I. 0. Carmelita (Esp.). — The fore-wings are violet-grey, with indistinct dark lines, and 

 the costa is dark chestnut-brown, and marked with two white spots. The hind-wings are 

 reddish-grey, with a blackish spot at the anal angle. Expands about \\ inches. A scarce 

 insect throughout Central Europe in April and May, which may be captured by beating the 

 trunks of young birch-trees. The larva is yellowish-green, with two yellow lines, and a streak 

 of orange-red spots on the sides. It feeds on birch in June and July. The moth is figured 

 at PI. 31, Fig. 4. 



2. O. Sieversi (Men,). — The male is greyish-brown ; on the fore-wings there is a narrow 



