60 HAUSTELLATA. — LEPIDOPTERA. 



The name Colocasia, which was proposed by Ochsenheimer, 

 being employed in Botany, it becomes necessary to change it ; the 

 crested thorax at once distinguishes this genus from the other 

 Arctiidse, and its subspiral maxillse from the foregoing genera; 

 from which it also differs by the more slightly pectinated antennae 

 of the males, and simply ciliated antennae of the females. There is 

 but one indigenous species ; but, according to the author above 

 alluded to, a second occurs on the continent ; and I may here take 

 occasion to remark, that, although many of the genera of Bomby- 

 cidse, &c. before described contain one British species only, many, 

 such as Eriogaster, Psecilocampa, &c. contain several continental 

 ones, as do Dasychira, &c. among the present family. 



Sp. 1. Coryli. Alis anticis fusco-lnninneis anniilo liiurisque atris, postice cinereis, 

 strigd obsoletd undatd fused. (Exp. alar. $ 1 unc. 1 — 6 lin. 9 1 uiic 3—5 

 lin.) 



Ph. Bo. Coryli. Linne.—Don. ix. ;jZ. 309. De CoxyM.—Steph. Catal. No. 

 6008. 



Anterior wings with an ashy patch at the base, tinged with griseous, then an 

 interrupted dusky striga, followed by a broad rusty or dusky-brown fascia, in 

 which are several irregular black lines and a black ring : this fascia is bounded 

 by a dusky or black waved striga ; the posterior half of the wings is pale 

 cinereous, clouded with darker, with an undulated brownish striga, margined 

 externally with yellowish, the ciUa dusky, frequently spotted with white: 

 posterior wings dusky, sometimes with a pale transverse band, at others 

 cinereous at the base, with a broad marginal fimbria : thorax griseous, varied 

 with fuscous ; abdomen ashy-griseous, with dusky tufts on the back ; antennse 

 pale-ferruginous. Female generally rather paler. Both sexes vary exceed- 

 ingly in the brilliancy and distinctness of their markings, as well as in colour. 



CaterpUlar red, with two deeper red tufts on the back, near the tail, and two 

 elongate attenuated fascicles of hair on the neck ; it feeds on hazel and birch, 

 and appears in the middle of May and of September ; the pupa is dusky before, 

 brownish behind, arxd is enclosed in a pale folliculus : the imago is produced 

 at the beginning of April, and a second time about the middle of July. 



Of late years this insect has become very scarce near London, 

 but formerly I used to capture it at Coombe-wood, not uncommonly, 

 both in the larva and imago states : it has also occurred at Birch 

 and Darenth woods. " Near Dublin, not unfrequent." — Rev. J. 

 JSulwer. 



Genus LXIII. — Orgyia, Ochsenheimer. 



Palpi short, compact, hairy, biarticulate, the basal joint small, the terminal 

 large, broad, ovate, subacute: maxillw obsolete. Anlannw short, deeply 



