24 HAUSTELLATA. LEPIDOPTEUA. 



Anterior wings of the male with the base pale chestnut-brown, with two ab- 

 breviated strigae on the costa, the centre of which, adjoining the second striga, 

 is occupied by a large subquadrate whitish patch, followed posteriorly by a 

 larger ocelliform one, tinged with purpUsh, intersected by black dashes on the 

 nervures, margined anteriorly by a deep brown lunule, and posteriorly with 

 griseous clouds and a whitish streak ; the hinder margin with a narrow black 

 line, and the interior margin streaked with black : cilia brown, faintly dotted 

 with white on the edge : posterior wings ash-coloured, with a central lunular 

 dusky spot, and a narrow marginal line ; cilia whitish, towards the anal angle 

 clouded with deep brownish-black. Female with the anterior wings of a 

 more uniform castaneous tinge, and the posterior mouse-coloured, with brown 

 cilia. 



Caterpillar with two acute protuberances on its back, and one on the anal seg- 

 ment : it is greenish or ash-coloured, with a paler lateral stripe and reddish 

 tail : it feeds on the poplar and wiUow^ and is found in June, August, and 

 September : the imago appears the beginning of May, and in July. 



Not very abundant near London : I have occasionally taken it 

 at Darenth and Coombe woods ; and, in June 1827, I captured 

 two specimens at Ripley. " Near Dublin." — N. A. Vigors, Esq. 

 " Coombe- wood."" — Mr. Ingpen. " Rather frequent near Holt, 

 Norfolk."—^. H. Haworth, Esq. " Coleshill."— J^ft;. W. T. 

 Bree. " Near York, rarely." — W. G. Hetcitson, Esq. 



Genus XL. — Leiocampa* mihi. 



Palpi extremely minute, enveloped in dense hair : maxillw obsolete. Antenna 

 fiUform, bipectinated in both sexes to the apex ; the pectinations shorter, but 

 not vanishing at the tip, and abbreviated in the female : head hairy in front : 

 eyes moderate : thorax not crested : abdomen elongate, cylindric, tufted at the 

 apex : anterior wings elongate, rather acute at the apex, the posterior margin 

 slightly rounded and obsoletely denticulated ; the interior with a single 

 squamous tooth towards the centre : legs short, not very stout ; femora and 

 tihiw densely clothed with hair ; tarsi slender : anterior tibiae with a very 

 short spine-like process interiorly. Larva naked, with a small conical pro- 

 tuberance on the anal segment only : caudal legs perfect : pupa subterranean, 

 foUiculated. 



Leiocampa differs from Notodonta by the slenderness and com- 

 parative acuteness of its anterior wings, and by both sexes having 

 the antennae bipectinated : the thorax is not crested, the anterior 

 wings very slightly denticulated, with one dorsal prominence, the 

 abdomen elongated, the legs densely clothed with hair, and the 



Xiioi f(rvis, Ka./u.'Tti critca. 



