NOCTUIDiE. HADENA. 185 



Sp. 10. glauca. Alls anticis griseis, niaculis ordinariis fascidque dentatd glau- 



cis; posticis cinereis, ciliis alhidis. (Exp. alar. 1 unc. 3 — ^4 lin.) 

 No. glauca. Hilhner. — Ha. glauca. Steph. Catal. part ii. p. 81. No. 6204. 



Head and thorax cinereous, with lutescent clouds and lateral stripe on the latter : 

 anterior wings of a glaucous-ash, rather fulvescent, with three obsolete somewhat 

 pale strigfe, more or less edged with fuscous: the ordinary stigmata glaucous 

 with black or dusky margins, and between them and the inner margin is a bifid 

 ochraceous-ash spot, the point directed towards the anal angle of the wing ; 

 on the hinder margin of which is an undulated pale striga, having the W 

 mark less distinct than in the preceding insect : the posterior wings cinereous, 

 with a fulvous tinge, the cilia whitish or ochraceous. 



Caterpillar yellowish varied with brown, with a yellowish dorsal line, spotted 

 with black, with some white spots on the sides: — it feeds on the Tussilago 

 farfara ; and is found about August : the imago appears in June. 



This and the two following species, and probably Ha. ochracca and Lithoriza, 

 differ considerably from the other species of the genus in the structure of their 

 pupa;, which have their hinder segments produced into prominent angles, 

 giving them the appearance of being dentate: the perfect insects also differ 

 too much from the rest, as before mentioned, to allow of their association in 

 the same genus : but at present I have not attempted to disunite them. 



Not common : specimens liave occurred near London : others 

 near Cheltenham, and in Derbyshire, near Matlock. 



Sp. 11. plebeia. Alls anticis cinereo fuscoque variis viaculd stigmatijbrmi bifida 



striguque albidis. (Exp. alar. 1 unc. 3 — 4 lin.) 

 Ph. No. plebeia. Linne ? — Ha. plebeia. Steph. Catal. part ii.p. 81. JVo. 6205. 



Head and thorax cinereous, the latter with some dusky or black streaks and 

 clouds and lutescent shades : anterior wings cinereous, with three dusky trans- 

 verse streaks at the base, adjoining a flavescent spot on the inner margin : the 

 ordinary striga; are not very evident, and between the second and third the 

 stigmata are placed; these are cinereous, and separated by a quadrate dusky or 

 black space, and a bifid cinereous spot is between them and the posterior margin, 

 as in the last described, the intermediate nervures being whitish, with dusky 

 or black spots, forming somewhat of an angle : near the hinder margin is 

 a dentated whitish or flavescent striga, more or less margined with dusky 

 spots; and in the margin itself is a row of black lunules: cilia cinereous: 

 posterior wings ashy-brown, with a fulvescent tint, and darker margin, behind 

 an obscure dentated pale striga. 



This singular insect varies considerably in colour; in fact, two specimens scarcely 

 occur exactly similar ; and I suspect that the following species will eventually 

 prove a mere variety : — amongst the numerous varieties, the Noctua dentina 

 of the Wien. V. has a place ; but as the insect is probably the Ph. No. plebeia 

 of Linne, I have retained that name, as adopted by Mr. Haworth. 



Caterpillar dirty-brown, with reddish clouds and black lateral and dorsal lines ; 



