TORTRICINA. 85 



their colours, and even in their markings, which formerly led to 

 the amplification of species. The costa is much more arched 

 than in Phlaodes. The wings are held in a deflexed position in 

 repose. 



The British species are four in number, and are arranged in 

 the following order : 



A. Anterior wings brown, with a, paler blotch on the 



dorsal margin. 



a. With the blotch either obsolete, nearly so, or 



distinct, and extending along the dorsal margin . Species 1 



b. "With the blotch always nearly obsolete . . . Species 2 



c. With the blotch sometimes ivhite, sometimes dark 



colour, and at others nearly obsolete Species 3 



B. Anterior wings black, with no blotch upon the 



dorsal margin Species 4 



1. Piceana, Haw. Alls anticis subnitidis, piceis vel rufo-brunneis 

 immaculatis ; posticis pallide fuscescentibus. tf Exp. al. 8-9-J lin. 



Head deep fuscous. Face darker than the head. Eyes black. 

 Palpi longer than the head ; above and at the sides, deep fuscous, 

 drab beneath. Antennae fuscous. Thorax and patagia deep fuscous. 

 Anterior wings glossy, unicolorous, deep fuscous or reddish brown, 

 and immaculate. Apical scales deep fuscous, darker than the wing, 

 with the bases slightly paler. Cilia same colour as the wing. Poste.- 

 rior wings with a glossy, pearly lustre, in certain lights showing a 

 pale reddish-brown tinge. Marginal scales very pale brown, the 

 bases straw-colour. Cilia with a pale reddish-brown tinge. Ab- 

 domen fuscous ; the caudal tuft dull ochreous drab. $ Exp. al. 

 8-9| lin. 



A common insect, and very variable in colour, which ranges 

 from reddish brown to deep fuscous. The variation from the 

 type may be ranged under the varieties Sordidana and Semi- 

 fuscana. P. sordidana has the dorsal portion of the wing 

 marked with deep fuscous, enclosing a blotch thereon. 



P. semifuscana is well figured in Wood, pi. 34. fig. 1031 ; 

 also in Stephens' ' Illust/ vol. iv. pi. 36. fig. 1. All the inter- 

 mediate shades between this last and the typical insect occur. 



The imago appears from June to September and October 

 among Sallows and Willows, in marshy places ; also among 

 Alders. It occurs at the New Forest, and in the metropolitan 

 district ; also in the vicinity of Edinburgh. 



The larva feeds on the leaves of various species of Sallow, 

 Salix capraa, &c., and upon the catkins. 



