TORTRICINA. 123 



7. Aceriana, Dup. Alls anticis albidis, ant pallide ochraceis ; fascia 

 basi brunnea atroque strigata, media cinerea nebulosa ; margine 

 dorsali ante angiilum analem macula trigona brunnea ; apice 

 puncto nigro, macula ocellari sub-plumbea atomis atris notata; 

 posticis fuscis. $ Exp. al. 7-7^ Hn. 



Head fuscous, paler behind. Face fuscous, paler below. Eyes 

 black, with a velvety appearance. Palpi above and at the apex 

 drab, slightly fuscous at the sides and beneath. Antennae fuscous, 

 basal joint clothed above and beneath with drab -coloured scales. 

 Thorax variable, sometimes fuscous, alternated by transverse bands of 

 drab, at others dark brown, alternated in the same way and very fre- 

 quently with rose pink. Patagia coloured like the thorax. Anterior 

 wings dull, cream-colour with intense brown, fuscous and greyish 

 markings ; at the base is an umber-coloured streaky patch, darkest 

 outwardly towards the dorsal margin, its posterior edge slightly 

 oblique and variable, but always convex ; sometimes the convexity 

 assumes the form of a very obtuse angle, at others slightly convex 

 with undulations, and at others again, considerably rounded and un- 

 dulate. Extending obliquely two- thirds towards the anal angle, and 

 proceeding from the middle of the costa is a pale buff cloud, much 

 spotted with umber or iron-grey. Within the anal angle, on the dorsal 

 margin, is a triangular patch of umber. Towards the middle of the 

 apical margin is another deep umber-coloured mark, of very variable 

 size and shape; below this is the ocelloid patch, consisting of a 

 roundish cream-coloured space, enclosing two very pale, slightly 

 lustrous leaden-coloured clouds, with a row of black spots between. 

 There are one or two small umber streaks at the middle of the 

 dorsal margin, and the costa is distinctly streaked with broad and 

 narrow pale umber marks, mixed with lustrous leaden colour ; the 

 apical ones produced; a distinct eye-like spot at the apex: this 

 spot is sometimes produced downwards to a point. Apical scales 

 black, with cream-coloured tips from the apex to the middle of the 

 margin, then cream-colour, clouded with pale grey, to the anal angle ; 

 the bases cream- colour. Cilia at the apex smoky black, then iron- 

 grey, with the tips broadly dull cream-colour, both becoming paler at 

 the anal angle. Posterior wings clothed with coarse fuscous scales, 

 darkest at the apex, on a pearly lustred ground. Marginal scales 

 pale fuscous, with cream-coloured bases. Cilia long, pale grey. 

 Abdomen pale grey, with a fuscous tinge, the caudal tuft darker. 

 5 Exp. al. 7-7 J lin. The umber- coloured mark towards the middle 

 of the apical margin frequently dilute, the pale portions- of the wing 

 more suffused with iron-grey. 



A very common species ; allied to H. dealbana, but larger, and 

 having the basal patch less angulated and the ground-colour of a 

 warmer tint. It does not vary. 



The imago appears abundantly among Poplars in July through- 

 out England. 



