TORTRICINA. 163 



the costa, arranged in a triangular form, and streaked with black ; 

 the disk faintly clouded with ferruginous, and thickly freckled with 

 black or dusky atoms, particularly at the base of the costa, and along 

 the apical margin. Looking along the wings towards the base, some 

 fine black streaks are visible, which are hidden, when viewed from 

 above, by the tufts and ridges upon the wing ; the most conspicuous 

 of these latter runs obliquely to the middle of the dorsal margin. 

 Apical scales grey, speckled with umber and brick-red at the base. 

 Cilia grey, speckled with umber. Posterior wings very glossy, grey 

 at the base, merging into fuscous at the margins, the speckling of the 

 under surface showing through. Marginal scales fuscous, with straw- 

 coloured bases. Cilia whitish. Abdomen glossy, pale grey, the apex 

 drab. $ Exp. al. 8^-9 lin. 



Much resembles O. scotana, but is smaller ; the ground-colour 

 slightly darker, and the three spots in the middle, larger and 

 brown or brick-red. It varies inter se in the intensity of the 

 markings, and slightly as to size. 



According to the late J. F. Stephens, the imago appears in 

 July and August; but Mr. E. Parfitt, who has been in the habit 

 of taking the insect for several years past, besides breeding it, 

 fixes the time as October and November. Round Paris, accord- 

 ing to M. Guenee, it is a very common species among Elms, 

 with us it occurs but sparingly, and is local. It has not been 

 taken near London for some years. Birch, Darenth and Coombe 

 Woods, near Exeter, London, and Worcester, are noted as 

 localities. 



This species remains in the pupa state about one month. 



The larva is found on the Elm, is full-fed about the begin- 

 ning of September, and is 6 lines in length. The Rev. E. 

 Horton says (in the 'Entomologist's Weekly Intelligencer/ 

 vol.v. p. 14), that he bred this species from larvae which he could 

 not distinguish from those which produced O. Boscana. 



4. Boscana, Fabr. Alis anticis scabris, albis ; maculis tribus brun- 

 neis ad costam in triangulo dispositis, atomisque fuscis sparsis ; 

 posticis griseis. <$ Exp. al. 7-^ lin. 



Head and face white. Eyes black. Palpi longer than the head ; 

 above and between white ; grey at the sides and beneath. Antennae 

 grey. Thorax whitish in front, grey on the vertex and behind. Patagia 

 grey. Anterior wings white, with two oblong umber patches on the 

 costa, one before, and the other beyond, the middle, and a third one 

 between them, towards the centre of the disk; all more or less speckled 

 with intense umber or black. At the base of the costa, centre of 

 the disk, towards the anal angle, and in the apical region, are patches 

 of umber freckles. A few tufts, and ridges of elevated scales are 



M 2 



