24 HAUSTELLATA. — LEPIDOPTERA. 



genus Laving the penultimate joint gibbous or tuberculated, while 

 it is simple in PoHa. 



Sp. 1. bimaculosa. Alls albido-cinerascentibus ; anticis subnebulosis, posticis 



nigro bhnamlatis. (Exp. alar. 2 imc.) 

 Ph. No. bimaculosa. Linne.—MX. bimaculosa. Curtis, iv. pi. 177. Steph. 



Catal part ii. p. 88. No. 6257. 



Ashy-white with dusky atoms; thorax with two obhque black lines ; anterior 

 wings slightly clouded, with a dentated brown striga towards the base, a little 

 before the middle, a whitish arcuated submoniliform one behind the middle, 

 and an undulated interrupted brownish one, margined interiorly with pale 

 castaneous, near the hinder margin; on the costa are several abbreviated 

 obhque fuscous streaks, and at the base of the wing a sublunate brown spot; 

 the stigmata are large, pale, edged with brown and ferruginous ; and between 

 the anterior one and the inner margin of the wing is a third stigmatiform spot 

 coloured hke the true stigmata : the hinder margin of the wing is spotted with 

 dusky : posterior wings pale, clouded with fuscous towards the apex, with a 

 large brown spot on the anal angle, and a lunate one in the centre, the margin 

 also brown : cilia cinereous. 



Caterpillar griseous, with longitudinal dusky and whitish striae, each segment 

 with an oblong black spot, in which the stigmata are placed; towards the 

 head is a large brown patch : it feeds on the Elm. 



The only indigenous example which I have seen of this insect 

 is contained in the collection at the British Museum, to which it 

 was presented by Dr. Leach: it was captured near Bristol, I believe, 

 in July, 1815. 



Sp. 2. Oxyacanthae. Alls anticis fusco viridi pallidoque variis, lunula albd mar- 

 ginis tenuioris. (Exp. alar. 1 unc. 7 — 8 hn.) 



Ph. No. Oxyacanthae. Linne. — Don. v. pi. 165.— Mi. Oxyacanthae. Steph. 

 Catal. part ii. p. 88. No. 6258. 



Head and thorax cinereous, the latter fuscous at the apex: anterior wings 

 fuscous, prettily varied with pale reddish and green, the latter colour pre- 

 dominating on the inner margin: at the base of the wing is a dusky lineola 

 and a transverse undulated striga, the latter followed by the ordinary stig- 

 mata, of which the anterior is large and rounded, the posterior larger and 

 irregularly cordate ; behind the latter is an obsolete slender pale striga, which 

 terminates on the inner margin in a white lunule; towards the hinder margin 

 is a pale fascia, in which is a row of rounded fuscous spots ; the hinder margin 

 is shining green, delicately edged with an interrupted fuscous line; ciUa 

 cinereous, with a row of large fuscous spots : posterior wings fuscous, with 

 the margin darker, and bearing an obscure abbreviated whitish striga. 



Var. /3. Anterior wings more or less fuscous or dusky-brown, without the green 

 tinge, with a row of pale spots on the posterior margin, and the white lunule 

 on the inner edjie. 



