16 TORTKICINA. 



1. Augustana, Hiibner. Alls auticis cinereis aut pallide ochraceis, 

 basi fiiscis ; pone medium rufis, castaneis aut ferrugineis, puncto 

 triangular! ad costam ochraceo vel cinereo ; posticis fuliginosis basi 

 dilutioribus. <$ Exp. al. 6-6|- lin. 



Head drab. Face drab, paler below. Eyes brown. Palpi as 

 long as the head, very pale drab, except at the apex, which is smoky 

 black. Antenna dark grey. Thorax and patagia dusky drab, the 

 latter paler at the tips. Anterior wings dull drab ; at the base, on 

 the dorsal margin, is a roundish dusky patch, followed by an oblique 

 isometric fascia of the ground-colour of the wing. Beyond this, the 

 apical portion is occupied by a brick- red patch enclosing a triangular 

 space on the costa ; this latter is maculated with white and dusky, 

 and streaked with lustrous silvery scales, especially at the inner 

 edges. There are also some silvery streaks on the brick-red patch 

 towards the apical margin and the anal angle. The wings often with 

 an irroration more or less of dusky atoms. Apical scales without 

 gloss, dull brick-red, slightly paler at the base. Cilia slightly 

 glossy ; at the apex dusky ferruginous ; then straw-colour, tinged 

 with ferruginous to the middle of the margin ; afterwards, dusky 

 ferruginous to beyond the anal angle, where they become iron-grey. 

 Posterior wings rich fuscous, darkest at the apex. Marginal scales 

 fuscous, with tawny bases. Cilia pale grey, frequently white, and 

 sometimes with a fuscous tinge at the apex. Abdomen glossy, 

 fuscous ; the caudal tuft drab. $ Exp. al. 6^-7 lin. In colour 

 somewhat brighter than the 3 , but the silvery markings nearly 

 obsolete. 



This is rather a common species ; it varies a little in size, and 

 considerably in colour, especially the ground-colour, which 

 ranges from pale to dark drab, and the markings from fuscous 

 and ferruginous to deep brick-red. In some specimens the 

 base is wholly pale, constituting the var. a. of Haworth and the 

 viminana of Guenee. 



The imago appears in June and July, among Sallows and 

 Willows, and is generally distributed throughout the south of 

 England, Combe, Darenth, and Birch Woods, Cheshunt, Brox- 

 bourne, Ripley, Monkswood, Black Park, near Gloucester, &c. It 

 occurs also in Scotland. 



The pupa is long, amber-coloured, and enclosed in an earthen 

 cocoon, spun together with silk. 



The larva spins together the leaves of the Willow and Sallow, 

 feeding thereon, and also in the catkins, and is full-grown in 

 May. It is pale yellow in colour. Head black and shining; 

 shield pale brown, darker in front, its anterior margin white ; 

 spots scarcely darker than the body. 



