GEOMETKID.i;. — riDONIA. 147 



Sp. 1. Piniarius. Alls fuscis Jlauo-maculaiis, subtus nebulosis, fasciis duabus 



fascis. (Exp. alar. 1 unc. 6 — 8 lin.) 

 Ph. Ge. Piniaria. LinnL—Don. x. 27. pi. 336. — Bu. Piniarius. Steph. Catal. 



part u. p. 115.. No. 6444. 



Fuscous : wings deep fuscous, the anterior with a transverse pale-yellowish (or 

 whitish) trilobed patch, and a longitudinal band of the same colour, divided 

 by two transverse strigoe on the posterior, both of which are more or less 

 irrorated with fuscous or black; ciUa yellowish interrupted with brown : an- 

 terior wings beneath somewhat similar, but paler, with the apex whitish ; the 

 posterior white, irrorated with ochraceous-brown, with two waved transverse 

 strigse of the same colour, the white ground forming a longitudinal streak of 

 that hue. Female marked like the male, but the ground colour of the wings 

 above is reddish-brown, with orange-yellow spots: the body is also red- 

 brown, sprinkled with yellowish. 



Rather variable in colour. Caterpillar green, with five longitudinal lines; the 

 dorsal one whitish, the next on each side yellowish-white, and the others 

 yellow: — it feeds on the Pinus sylvestris and P. abies. 



Rare till within these few years within the metropolitan district ; 

 it is, however, far from common : it frequents fir plantations, and I 

 have taken a few specimens near Ripley. In Norfolk, I believe, it 

 has been taken in abundance, as also in some parts of Scotland. 

 " Justice Town, Newby Cross, Floshes ,&c." — T. C. Heysliam,Esq. 

 " Meldon-park, Northumberland." — G. Wailes, Esq. 



Genus CLXV.— Fidonia, Treitschlce. 



Palpi minute, short, clothed beneath with long velvety hairs, above squa- 

 mous, triarticulate, the basal joint curved, shorter, and more robust than 

 the second, which is elongate attenuated to the apex, the terminal very 

 minute : maxillae shorter than the antennae. Aniennw rather long, each joint, 

 excepting three or four at the tip, furnished on both sides with a slender, 

 elongate, deflexed, cihated ray, gradually decreasing in length to the apex-; 

 simple and pubescent within in the females: head small: thorax slender 

 and scaly: wings entire, rounded, sprinkled with minute dots, fonning by 

 their union more or less distinct strigae: body slender, slightly carinated. 

 Larva with ten legs, elongate-cyliudric, the head round : pupa subterraneous. 



The genus Fidonia of Treitschke contains such an heterogeneous 

 assemblage of discordant insects, and the characters which he has 

 assigned thereto are so meagre, that it becomes absolutely necessary 

 to disunite them, and to attempt a more rigid definition of the 

 genera than he has employed, ere we can gain much information 



