162 TORTRICINA. 



2. Scotana, Guen. MSS. Alls anticis albidis scabris; maculis tribus 

 cinereis aut nigris medio costse in triangulo dispositis ; punctis 

 nigris sparsis ; margine dor sail mar is puncto ferrugineo ; posticis 

 cards aut griseis nitidis ; apice strigulis fuscis ; ciliis albis. <3 Exp. 

 al. 10-10! lin. 



Head and face pale hoary grey. Eyes black, with a velvety ap- 

 pearance. Palpi longer than the head, hoary grey above and at 

 the sides, white beneath. Antennae pale grey. Thorax and patagia 

 hoary grey, paler behind ; the latter, at the apex, sometimes inclining 

 to fuscous. Anterior wings dull, dirty white, mottled and freckled 

 with grey. The costa is broadly alternated with patches of grey, 

 especially before and beyond the middle ; these patches, in conjunc- 

 tion with a conspicuous one in the centre of the disk, form a triangle; 

 sometimes these markings approach to black, the central spot usually 

 tinged with ferruginous. A bright ferruginous spot is ON the dorsal 

 margin near the base, with a black one near it ; the remainder of the 

 wing freckled with grey or blackish atoms, especially along the 

 apical margin. The foregoing is the appearance of the wing viewed 

 from above, or from the base ; but viewed towards the base, several 

 streaks of black become visible, which are hidden in the other posi- 

 tions by the ridges of elevated scales which are disposed over the 

 surface. Apical scales pale, cream-coloured. Cilia white. Posterior 

 wings very glossy, grey. Marginal scales grey, with cream-coloured 

 bases. Cilia white. Abdomen and caudal tuft very glossy, yellowish 

 white. $ Exp. al. 9-10 lin. Anterior wings, with the central and 

 contiguous costal marks, more distinct ; the freckling more scanty 

 than in the $ . The ferruginous spot on the dorsal margin wholly 

 wanting. 



Constant in the ground-colour of the anterior wings ; the 

 markings vary in intensity. 



The imago appears in September and October in Perthshire, 

 where it was first captured by the late Richard Weaver, and 

 afterwards by Mr. Foxcroft and others. It is beaten out of the 

 White Birch (Betula alba). Hybernates. Preparatory states 

 unknown. 



3. scabrana, Fabr. Alis anticis albidis aut canis, scabris ; ad costam 

 maculis tribus connuentibus in triangulo dispositis; punctisque 

 nigris sparsis ; margine dorsali maris puncto ferrugineo ; posticis 

 canis aut griseis, nitidis; apice strigulis fuscis; ciliis albis. 

 rf Exp. al. 8-8 lin. 



Head grey, with a few umber scales behind the antennae. Face 

 grey, mixed with umber above, paler below. Eyes black. Palpi 

 longer than the head ; above pale grey, at the sides dusky, beneath 

 white. Antennas above grey, beneath paler. Thorax and patagia 

 grey. Anterior wings dull, dirty white, with brick-red patches on 



