178 TORTRICINA. 



bases. Cilia pale grey. Abdomen shining pale grey; the caudal 

 tuft straw-colour. $ Exp. al. 5-6-^ lin. Anterior wings marked 

 and coloured like the <$ , but wanting the minute tuft in the fold 

 towards the base of the dorsal margin. 



This species is liable to considerable variation in the intensity 

 of the markings, but the ground-colour is much more constant. 

 In general appearance it resembles Param.ferrugana, but is much 

 smaller, and the markings are usually darker. 



The imago appears in July and August, and we have met 

 with it in tolerable abundance where its food-plants grow. Its 

 recorded localities are : the New Forest ; in Devonshire ; Red- 

 dlesdown ; near Croydon ; at Mickleham ; New Brighton ; in 

 the vicinity of Manchester ; and in Scotland, on the Pentland 

 Hills. 



The pupa is 4^ lines in length, and of a deep ferruginous 

 colour. 



The larva is of a yellowish colour, and is to be found in June, 

 feeding on the Spiraea filipendula (Dropwort) and " Poterium 

 sanguisorba" (Lesser Burnet). 



2. ferrugana, Schiff. Alis anticis pallide ferrugineis ; strigulis re- 

 ticulatis maculisque connuentibus, in triangulo dispositis satura- 

 tioribus ; posticis griseis apice saturatioribus. <$ Exp. al. 8-9 lin. 



Head and face pale ferruginous. Eyes black, slightly shining. 

 Palpi ferruginous above and at the sides ; drab beneath. Antennae 

 fuscous, with a few joints at the base above ferruginous ; the basal 

 joint clothed beneath with drab-coloured scales. Thorax and pata- 

 gia pale ferruginous. Anterior wings pale ferruginous, freckled and 

 reticulated with a darker shade, slightly varying in intensity in dif- 

 ferent specimens. In the middle of the costal margin are situated 

 three ferruginous, undefined, suffusing spots, placed in a triangle, two 

 on the margin, the third on the disk. In some specimens these 

 marks are much darker than in others. They are mixed with dusky 

 scales ; a few black freckles towards the apex ; the apical margin 

 ferruginous. Apical scales ferruginous, sometimes mottled with 

 darker scales, and with slightly paler bases. Cilia pale ferruginous. 

 Posterior wings glossy, pale grey at the base, pale fuscous, and (in 

 some specimens) mottled, at the apex. Marginal scales grey, with 

 luteous bases. Cilia very pale grey. Abdomen fuscous grey ; the 

 caudal tuft straw-colour. 5 Exp. al. 6-8 lin. Anterior wings 

 marked like the cf , but the colour warmer, and the freckling and 

 reticulation more distinct. 



A plentiful species, and is subject to considerable variations 

 in the ground-colour of the anterior wings, which ranges from 

 straw-colour to rich ferruginous, and the markings from deep 



