TORTRICINA. 217 



anterior wings more or less predominant ; their colours, however, 

 are far from sombre, being red, orange, ochreous, &c. ; but the 

 markings are less defined in character. As a whole, these insects 

 are far from uncommon ; and, owing to the very recent discovery 

 of the larva of some of the rarer species, this genus is now 

 tolerably well represented in collections. 



The British species amount to eight in number, and are 

 arranged in the following table : 



A. Anterior wings without a buff -coloured cloud at 

 the apex. 



a. Spotted and clouded with orange or red . . . Species 1-2 



b. Spotted and clouded with ochreous brown . . . Species . 3 



c. Spotted and clouded with umbreous .... Species . 4 



d. Streaked with black Species . 8 



B. Anterior wings with a buff cloud at the apex . . Species 5-7 



1. Buoliana, Schiff. Alis anticis subargenteis, nebulis maculisque 

 rufo-aurantiacis ; posticis fusco-griseis. tf Exp. al. 8-&J lin. 



Head and face pale sulphur-yellow. Eyes black. Palpi longer 

 than the head, reddish orange, pale at the base and between. An- 

 tennae shining, grey above and beneath, brownish towards the base. 

 Thorax pale glossy grey in front and behind, darker on the vertex. 

 Patagia reddish orange at the base, glossy greyish white at the apex. 

 Anterior wings bright orange-red, slightly paler at the base, with 

 silvery streaks and spots. The silvery markings are exceedingly 

 variable, but they consist chiefly of a gemmated stripe, constricted in 

 the middle, like a narrow letter X, situated before the middle, and 

 running straight through the wing ; between this and the base is an 

 undefined, interrupted, simple streak, with longitudinal dashes 

 uniting it with the streak beyond. Near the apex is another gemi- 

 nated and constricted streak, more or less regular, but usually well 

 defined. Between the two principal streaks are other irregular 

 marks and spots, and sometimes a streak near the base. In some 

 instances the silvery markings are thickly irrorated with grey, and 

 always assume their lustrous appearance when viewed directly, but 

 look dead-white when seen obliquely, either to or from the base. 

 Apical scales dense and silvery, tipped with iron-grey. Cilia shining, 

 silvery white. Posterior wings dark grey, clothed with coarse scales. 

 Marginal scales iron-grey, with pale bases. Cilia pale grey. Ab- 

 domen grey and shining, the caudal tuft pale pinkish drab. 5 Exp. 

 al. 8 lin. 



Common among young Fir-trees ; varies a little in size, and also 

 a trifle in colour. It is similar to R. Pinicolana, but is rather 

 smaller, and the costa is straighter, and the red markings on the 

 anterior wings are neither so defined nor so deeply coloured. 



