TOHTRICINA. 49 



paler, becoming dusky at the anal angle. Posterior wings dull 

 fuscous. Marginal scales shining, fuscous with luteous bases. Cilia 

 shining, pale grey. Abdomen fuscous, darkest towards the apex, 

 straw-colour beneath ; the caudal tuft straw-colour. $ Exp. al. 

 9-lO^lin. Antennae slender. Anterior wings marked and coloured 

 as in the tf . Abdomen, stouter luteous tuft at the apex. 



This is a very abundant and variable species, both in the 

 ground-colour and in the markings ; and the variation ranges 

 under three heads, viz. : L. Ribeana proper, where the ground- 

 colour is as above described ; L. grossulariana, with the ground- 

 colour pale testaceous yellow, and slightly darker markings ; and 

 L. cerasana, with the ground-colour like L. grossulariana, but with 

 the markings of dark brown, approaching to umber, and having 

 the dorsal margin towards the base and middle much clouded 

 with the same colour, but paler. 



The imago appears in June and July, and is generally distri- 

 buted throughout the country. 



The pupa is from 5 to 6 lines in length, with the sides, 

 wing-cases, and ventral portions pale brown ; the dorsal portion 

 darker, with umber clouds and spots across the thorax. 



The larva feeds on many trees : Elm, Oak, Hazel, Peach, 

 Bramble, Lime, Laburnum, Mountain Ash, &c., and may be 

 found abundantly in May. It is of an olive-, or sometimes of a 

 bluish-green colour; the dorsal vessel darker, with oval ele- 

 vated black spots; the head is variable, sometimes black, with 

 yellowish clouds, at others green, diaphanous, and with brown 

 spots, streaks, or markings, and sometimes immaculate. The 

 shield is green anteriorly, black at the base ; sometimes with a 

 lunate black mark on each side of the dorsal division, and some- 

 times immaculate. The anal segment is sometimes terminated 

 by a large, horny, oval, black plate, at others pale green, irrorated 

 with black punctures. 



8. cinnamomeana, Treitschke. Alis anticis cinnamomeis, subretieu- 



latis ; basi medioque fasciis obliquis, macula costali ante apicem 



pallide ferrugineis ; capite antennisque maris albidis ; posticis 



basi fuscogriseis ; apice subflavescentibus. tf Exp. al. 9-10 lin. 



Head ferruginous behind, pale fuscous on the vertex, whitish in 



front. Face white. Eyes intense purplish brown, with a velvety 



appearance. Palpi twice the length of the head, white between, 



pale cinnamon-colour at the sides, whitish at base and beneath. An- 



tennaB clothed with pale luteous or straw-coloured shining scales 



especially the basal joint. Thorax pale ferruginous. Patagia eon- 



colorous with the thorax, but more glossy. Anterior- wings red- 



E 



