

TORTRICTNA. 255 



front fuscous, on the vertex hoary, the crest tipped with fuscous. 

 Patagia fuscous, mixed with hoary scales. Anterior wings dull, 

 white, with fuscous markings, speckled with umber, chiefly on their 

 anterior edges. The base, particularly on the costa, irrorated with 

 fuscous, followed by an abbreviated, curved, and angulated fascia, 

 extending beyond the middle, where it is abruptly terminated. At 

 the centre of the costa commences another abbreviated, oblique, and 

 broader fascia, most distinct anteriorly, and slightly dilated at its 

 origin ; it extends beyond the middle of the disk, and points to a 

 faintly-marked, somewhat triangulate patch, on the dorsal margin. 

 On the subapical portion of the costa is a conspicuous, irregular 

 patch, enclosing a pale space on the margin, and is preceded and 

 succeeded by a small spot. The apical region is spotted with umber 

 and fuscous; the pale portions of the wing finely and slightly 

 freckled with pale umber. Apical scales dull, white, tipped with 

 umber. Cilia glossy, fuscous grey, tipped with white. Posterior 

 wings clothed with coarse, dark grey scales, on a shining pale grey 

 ground. Marginal scales glossy, fuscous grey, with paler bases. 

 Cilia pale grey, glossy. Abdomen clothed with long, dusky, drab 

 scales ; the caudal tuft tawny. $ Exp. al. 10^11 lin. Anterior 

 wings with the markings darker, wider, and more spotted, and the 

 freckling of the pale portions somewhat in wavy lines. The tuft at 

 the apex of the abdomen ochreous. 



Rather a common species, but confined to the north of 

 England and Scotland ; it varies a little in size and very much in 

 the colour of the markings. In the typical insect the ground- 

 colour is white, which merges into grey, and the markings more 

 or less intense, ranging from fuscous to umber. It resembles 

 C. penziana, but its wings are not so long, nor are the markings 

 so defined nor so oblique ; nor does the central fascia so uni- 

 formly attain the anal angle. There is one variety assigned to 

 this species, in which the ground-colour is dark grey, with the 

 markings less distinct and defined, and partaking much of the 

 appearance of C. alternana. 



The imago appears from July to September, and seems at- 

 tached to the coast. It likewise is taken in North Wales, but 

 the specimens from that locality are somewhat paler than or- 

 dinary. 



According to Mr. R. Shield, the larva feeds in Thistles, but 

 more especially the common Sow Thistle (Sonchus arvensis). It 

 is also reputed to feed upon Wood Sage (Teucrium Scorodonia). 



