TORTRICINA. 177 



palpi. Thorax globose. Anterior wings with a few minute tufts of 

 elevated scales ; length exceeding twice the width. Costa obtusely 

 arched at the base, slightly concave in the middle ; apex produced ; 

 apical margin concave, dorsal margin slightly rounded. The discoidal 

 cell is situated in the middle of the wing, and extends scarcely two- 

 thirds its length. The costal vein reaches the margin before the 

 middle. Posterior wings elongate ; apex acute, produced. Apical 

 margin concave ; dorsal margin entire ; basal angle slightly produced. 

 Abdomen tufted in both sexes ; slender in the $ , stouter in the $ . 



Allied to Peronea, but distinguished from it by the greater 

 evenness of the colouring of the anterior wings, and the extent 

 of variation is limited ; never such as to give the notion, by de- 

 parture from the type, of specific difference, which frequently 

 occurs in Peronea proper. The chief structural variations are, 

 as compared with that genus, the middle joint of the palpi 

 is longer, and the apical margin of the anterior wings more 

 rounded. 



The following table shows the arrangement of the British 

 species : 



A. Anterior wings pale or ferruginous, with a darker 

 triangular mark in the middle of the costa . . . Species 1-2 



B. Anterior wings without the triangular mark in the 



middle of the costa Species 3 



1 . aspersana, Hub. Alis anticis ochraceis, bnmneo reticulatis ; 

 macula lata trigona pone medium costae, saturate ferruginea ; 

 posticis griseis, apice fuscescentibus. <$ Exp. al. 6|-7 lin. 



Head and face varying from deep ochreous to ferruginous, some- 

 times fuscous. Eyes black. Palpi above and at the sides deep fer- 

 ruginous brown ; drab at the base beneath. Antennas deep fuscous ; 

 the basal, and a few succeeding joints deep ferruginous. Thorax 

 and patagia ferruginous in front, ochreous behind. Anterior wings 

 bright ochreous, with a ferruginous tinge, and deep ferruginous 

 markings, and fainter reticulations. The costa at the base ferru- 

 ginous ; before the middle, and before the apex, are two large deep- 

 coloured, undefined patches, both suffusing and uniting with a third, 

 and usually darker one, in the middle of the wing. On the dorsal 

 margin, near the base, is a small ferruginous patch, of a triangular 

 shape, having at its apex a minute black tuft in the fold : in this 

 fold, beyond the middle of the wing, near the dorsal margin, is a 

 minute black spot ; a tuft of elevated scales is situated at the apex 

 of the trigonal costal mark ; apical margin narrowly ferruginous. 

 Apical scales ferruginous, with yellowish bases. Cilia paler, be- 

 coming greyish towards the anal angle. Posterior wings shining 

 grey, slightly fuscous at the apex. Marginal scales grey, with luteous 



