OpORINA SCOPELOSOMA OKKHOniA. 1 83 



GENUS XLV. — OPORINA (BOISD.). 



Fore-wings a little broader behind, with the tips rectangular, the hind margin straight, and 

 rounded at the hinder angle ; the antennje simple, pubescent in the male ; the thorax short, 

 smoothly clothed with hairy scales, the thighs covered with downy hair, the abdomen obtuse 

 with hairy tufts on the sides, not extending far beyond the anal angle. The only species, 

 * O. Croccago (W. V.), has pale orange fore-wings, with an interrupted blackish central shade, 

 a row of blackish spots beyond the middle, and the two stigmata surrounded with paler ; the 

 transverse lines indistinct, and two-thirds of the costa narrowly edged with white ; hind-wino-s 

 whitish, with a curved brownish stripe. The southern variety Corsica (Mab.) is straw-colour. 

 Expands about i^ inches. It is found throughout Southern and Central Europe in September 

 and October, and hybernates, reappearing in March and April. The larva is reddish-brown, 

 with oblique stripes forming acute angles on the back, a thick black transverse stripe on the 

 1 2th segment, and two straw-coloured spots behind. It feeds on oak from May to July. 

 The moth and larva are figured at PI. 34, Fig. 7, a, b. 



GENUS XLVI. — SCOPELOSOMA (CURT.). 



Fore-wings rather long, a little broader behind, with the tips pointed, a paler reniform 

 stigma, and a rather oblique and curved hind margin. The antennae of the male are ciliated, 

 but not dentated, and the tongue is strong. The only species, * S. Salellitia (Linn.), has 

 coppery-brown fore-wings, varied with darker, with two fine blackish transverse lines, and a 

 white spot and two adjoining white dots representing the reniform stigma ; hind-wings brownish- 

 grey. Expands about if inches. Common in most parts of Europe and the Altai, appearing 

 at the same seasons as O. Croceago. The larva is black, with white spots on the sides of the 

 2nd, 3rd, Sth, and nth segments. It lives on trees in May and June, but must be reared 

 by itself, as it is one of the most formidable cannibals. 



GENUS XLVII. — ORRHODIA (HUBN.). 



Small or middle-sized moths, with stout bodies ; the fore-wings a little broader behind, 

 hind margin convex in the middle and rounded above the hinder angle ; brownish, sometimes 

 with the orbicular and reniform stigmata, and double transverse lines, which are generally 

 dentated ; but all the markings are frequently very indistinct ; hind-wings brownish. The 

 antennjE of the male are shortly ciliated, the tongue is strong, the thorax moderately broad, 

 with the shoulders rounded, and the abdomen extends for about one-third of its length beyond 

 the hind-wings. The larv.-e are thick, smooth, or thinly clothed with hair, and hide themselves 

 during the day ; and the moths appear from September to November, and reappear after 

 hybernation, from February to April, and may be taken at sugar. 



* I. O. Rubiginea (W. V.). — Fore-wings rusty-yellow, varied with rusty-red, and brown 

 before the hind margin, the markings lost in a number of brown dots, the two stigmata 

 indistinct, and the reniform stigma filled up with blackish beneath. Expands nearly U inches. 

 Inhabits the greater part of Europe, but not common. The larva is thinly clothed with hair, 

 dark grey, with a row of black spots on the back, and lives on sallows. The moth is figured 

 at PI. 34, Fig. 8. {O. Staiidingeri, Grasl., has grey fore-wings, varied with darker; a double 

 row of black dots before the hind margin, the outermost lost in the dark marginal band ; 



