30 HAUSTELLATA. LEPIDOPTERA. 



not elongated, clothed with short down : wings opaque, squamous : anterior 

 entire at the apex, with an obsolete denticulation on the inner edge; posterior 

 entire: legs short, downy: iihice with spurs at the apex, anterior with a com- 

 pressed spine. Larva naked, without dorsal protuberances ; anal legs perfect : 

 pupa subterranean, folliculated. 



Chaonia has the anterior wings entire, with a very obsolete pro- 

 minence on the interior margin ; the thorax very slightly crested, 

 the abdomen not elongated, the antennae bipectinated to the apex 

 in the males, and subserrated in the females. The larva has no 

 dorsal eminences. 



Sp. 1. Roboris. Alis anticis cinereis, strigis duabus undaiis albis, lunuldque 

 medid nigrCt. (Exp. alar. $ 1 unc. 4 — 7 hn. : $ 1 unc. 8 lin.) 



No. Roboris. Fabricius. — Don. ix. pi. 299. — Ch. Roboris. Steph. Catal. No. 

 5978. 



Antennae reddish-yellow : head and collar whitish-gray : thorax ashy : abdomen 

 rusty-gray : anterior wings cinereous, with two undulated white strigae, and 

 a central broad white fascia, in which is a black lunule ; towards the hinder 

 margin is an obsolete flexuous whitish striga, and the nervures are dusky: 

 ciUa gray, interrupted by dusky : posterior wings cinerascent, with two paler 

 transverse fasciae, and a dusky central lunule and nervures : ciUa dusky, with 

 whitish spots externally. Female rather darker. 



Caterpillar green or brown, with two yellowish dorsal hues, and a paler lateral 

 one : it feeds on the oak, and is found in the middle of September : the imago 

 in June. 



A scarce species ; taken at Birch, Darenth, Coombe, and Colney- 

 hatcli woods. — " In Mr. Kirby's garden at Barham." — M?-. Spar- 

 shall. 



Sp. 2. Dodonea. Alis anticis obscure griseis fascia albfi, strigis duabus undatis 

 albis, maculdgue apicis nigra tripartita. (Exp. alar. ^ 1 unc. 4 — 6 lin. : 

 $ 1 unc. 6—8 lin.) 



Bo. Dodonea. Wien. Verz. — Ch. Dodonea. Steph. Catal. No. 5979. — Ph. trima- 

 cula. Don. x. pi. 362. f. 2. 



Antennae pale-yellowish : head and thorax whitish-gray, the latter dusky-brown 

 behind ; abdomen ochraceous-yellow : anterior wings obscure grayish-ash, 

 varied with fuscous at the base, with an obsolete arcuated whitish striga 

 margined with fuscous ; in the centre is a broad whitish fascia, with a faint 

 dusky hne, followed by an ashy-gray patch, which reaches to the hinder 

 margin, and has a somewhat triangular dusky blotch on the costa ; cilia white, 

 spotted with fuscous : posterior wings grayish-ash, with a paler oblique streak. 



Var. fi. Steph. Catal. 1. c. With the base, and a central fascia on the anterior 

 wings, whitish, the latter with an undated fuscous striga; the rest of the 

 wing dusky-brown, faintly varied with grayish. 



