32 HAUSTELLATA. — LEPIDOPTERA. 



stretch out their anterior legs to the utmost, whence the name 

 sprawler, which has been applied to the insect. The present genus 

 may be known in its imago state by the integrity of its anterior 

 wings, which are somewhat pilose, and destitute of any real promi- 

 nence on the interior margin, by the elongation of its antennae, 

 which are bipectinated in the males alone, and by the acute, bent, 

 glossy spine on the exterior margin of the anterior tibiae. 



Sp. 1. Cassinea. AUs griseis, anticis lineolis spar sis atris, posticis margine 

 fusco punctato. (Exp. alar. <? 1 unc. 6 — 9 lin. : $ 1 unc. 8 — 10 lin.) 



Bo. Cassinea. Fabricius. Don. xii. pi. 397. f. 2. — Pe. Cassinea. Steph. Catal. 

 No. 5981. 



Antennae griseous: head cinereous, with the crown black; thorax cinereous 

 anteriorly^ with four dusky lines, and a whitish patch on each side : anterior 

 wings deep cinereous, varied with gray, with a conspicuous streak at the base, 

 and a second on the interior margin ; the rest of the wing, especially towards 

 the hinder margin, with smaller, irregularly-scattered, black streaks, and 

 a faint pale interrupted striga, frequently obsolete at the hinder margin : 

 posterior wings somewhat cinereous, with a central dusky spot, and ner- 

 vures: abdomen griseous. 



Caterpillar bright green, with a paler dorsal line, and two yellow lines on each 

 side, united posteriorly, the upper one forming an acute angle on the caudal 

 segment : it feeds on the hrae, sallow, oak, beech, privet, &c. : pupa brown : 

 the imago appears at the end of October. 



Rare in the imago state, but sufficiently common in the larva, 

 though difficult to rear: I have repeatedly taken the latter in 

 plenty at Coombe and Darenth woods, and occasionally near 

 Hertford. In the New Forest, Hants, the insect is evidently more 

 abundant than near London. " Taken near Coventry, by Mr. 

 Mercer."— i?^t;. W. T. Bree. 



Genus XLVI. — Peridea*^^?. 



Palpi very short, hairy, triarticulate, the basal and terminal joints minute: 

 maxillas short. Antenna elongate, serrated, bipectinated nearly to the apex in 

 the males : head small, pilose : thorax slightly crested, robust, hairy : abdomen 

 scarcely elongated, rather stout, slightly tufted at the apex : thorax and body 

 beneath very downy : legs short, stout, densely clothed with hair and down to 

 the middle of the tarsi ; anterior tibice with a spineiform lobe on the inner 

 margin : wings entire, subdiaphanous ; anterior lanceolate-ovate, with a single 

 prominence on the inner margin. Larvanaked, without dorsal protuberances. 



ris^/Ss*;;, nieticitlosiis. 



