12 TORTRICINA. 



There is now but one recognized British species, although 

 formerly it was considered there were several, in consequence of 

 the great variation to which it is liable. 



1. revayana, SchifF. Alls anticis nitidis cams aut griseis (ali- 

 quando brunneis); puncta ferruginea in medio, punctisque atris 

 obscuris, sparsis ; posticis griseis. tf Exp. al. 11-12 lin. 



Head drab. Face drab, paler below. Eyes dark umber. Palpi 

 more than twice the length of the head ; above and at sides fuscous, 

 beneath pale drab. Antennae brown. Collar drab, with a streak of 

 umber near the apex. Thorax and patagia drab, the former with the 

 crest slightly darker. Anterior wings glossy, drab, with the central 

 region darker, generally with a reddish appearance towards the 

 costa, and black or umber spots disposed over the surface ; these 

 spots are without gloss, giving them the appearance of being raised. 

 The central darker portion commences anteriorly on the costa, one- 

 third from the base, and proceeds direct to the dorsal margin, with a 

 clearly- denned wavy line. On the costa it extends one-fourth the 

 entire length ; its posterior edge very wavy, and dilating considerably 

 before the middle, but contracting before it attains the dorsal margin; 

 anteriorly and posteriorly is a line, following the course of the borders 

 of the central portion ; both suffuse upon the costa, especially the 

 posterior one. In the dilated portion of the central region is a brown 

 or black liturated spot. Before the central region towards the base 

 are two other similar spots. In the apical portion of the wing is a 

 sharply-angulated or zigzag line, followed by three spots towards 

 the anal angle, all black or dusky. On the apical margin is a row of 

 black lunules. Apical scales and cilia drab. Posterior wings at 

 base grey, merging into fuscous at the margins. Marginal scales 

 and cilia pale drab. Abdomen glossy, grey. $ Exp. al. 11-12J lin. 



A somewhat rare species in this country, and extremely 

 variable, the ground-colour of the anterior wings ranging from 

 hoary-grey to olive-drab, and to umbreous-brown with the spots 

 and markings darker ; but the character of these latter is con- 

 stant throughout, so that no doubt can be left of there being but 

 one species. 



The imago appears from July to December, but more com- 

 monly in the autumn, and occasionally they may be met with 

 (probably hybernated specimens) in the spring. It has been 

 captured at the New Forest, Combe, Darenth, and Birch Woods, 

 Black Park, Mickleham Downs, in Norfolk, &c. 



The pupa and larva appear to be unknown in this country ; 

 but, according to Hiibner, the former is bright green, with a 

 broad longitudinal brown stripe from the head to the edge of the 

 second abdominal segment; the latter is also bright green, 



