TORTRICINA. 



open, or streaked and mottled : it is abbreviated, or not reaching 

 the dorsal margin, or the costa, as the case may be : its poste- 

 rior edge is straight, rounded or hollowed ; or it reaches further 

 along the costal than on the dorsal margin, and vice versa. 



The ocelloid patch is a roundish mark at the anal angle, 

 usually of a light ground-colour, enclosing several black spots 

 or longitudinal lines. It is subject to great variation both in 

 size and colour, and not unfrequently edged or bordered with 

 streaks or markings of a metallic lustre. It is smallest in some 

 species of the genera Catoptria (Scopoliana, Hohenwarthiana) 

 and Grapholitha (Ulicetana, Hypericand) ; largest in Spilonota, 

 Steganoptycha, and Carpocapsa. It is most indistinct in Dicro- 

 rampha, Endopisa, and some of the Ephippiphorae ; in the two 

 former genera it is merely indicated by the usually enclosed 

 black dots being present, and in the latter it is nearly obliterated, 

 owing to the very dark ground-colour of the anterior wings. 



The British species of this group are classed under nine 

 families, which may be distinguished as follows : 



FAMILY I. TORTRICIDJE, 



having the costa for the most part regularly arcuated (it is 

 obtusely so towards the base in some genera only). The basal 

 patch t central fascia and subapical costal spot usually well ex- 

 pressed (examples of abbreviation and interruption do occur). 

 Ocelloid patch wanting, save a slight indication thereof in some 

 species of the genus Antithesia. 



FAMILY II. PLICATJE, 



having the costa in the d invariably folded at the base, in the $ 

 regularly arcuated. In some genera the basal patch and central 

 fascia are present and well defined, in others they are wholly 

 wanting. The same remarks apply to the ocelloid patch. 



FAMILY III. ANCHYLOPERIDJE. 



The costa is regularly arcuated in both sexes. Most of the 

 genera are distinguished by the produced apex of the anterior 

 wings. The basal patch is chiefly more developed than the 

 central fascia. The ocelloid patch not always present. 



