TORTRICINA. 181 



and beneath ; basal joint beneath clothed with whitish scales. Thorax 

 drab, with a dark crimson crest behind, its sides paler drab. Pa- 

 tagia drab. Anterior wings drab or ochreous grey, thickly streaked 

 with wavy rows of dark or iron-grey scales, and a pinkish flush on 

 the disk towards the apex ; the dorsal margin from near the base to 

 the anal angle deep crimson ; sometimes this is dull yellow ; ob- 

 liquely across the middle of the wing is a very faint indication of a 

 fascia. In fine specimens the scales on the costa at the base and 

 apex are rose-pink ; a row of minute tufts, of the same colour as the 

 wing, may be traced below the basal end of the costal incision, and 

 a few others irregularly placed towards the apex. Apical scales iron- 

 grey, with light drab bases. Cilia rose-pink, becoming iron-grey 

 at the anal angle. Posterior wings shining, pale grey, with the apex 

 slightly luteous ; the freckles of the under-side showing through. 

 Marginal scales grey, with white bases. Cilia grey at the extreme 

 apex, the remainder whitish. Abdomen shining, grey, with the 

 caudal tuft luteous. $ Exp. al. 9 lin. Anterior wings marked and 

 coloured like the tf , but with the iron-grey wavy streaks somewhat 

 darker. 



This singular species, although subject to much variation, can 

 readily be distinguished from all the other British Tortrices by 

 the deep excavation in the costal margin. The recorded varieties 

 are five in number, and inter se tolerably constant. They may 

 be distinguished by the colour of the anterior wings. 



1st. Having the ground colour-drab or ochreous grey, T. cau- 

 dana and T. effractana. 



2nd. Having the ground-colour ochreous or ferruginous 

 orange, T. ochracea, emargana and excavana. 



Var. T. caudana (the var. formerly so called) has the excavation 

 shallow, and appears to be only the worn aspect of T. effractana, 

 when the rough semi-erect scales at the base and apex of the 

 costa are worn off. This supposed var. is never taken in fine 

 condition. 



Var. T. effractana is the same as described above, and is the 

 commonest form of the insect. 



Var. T. ochracea has the anterior wings pale ochreous or buff, 

 with very slight indications of streaks towards the base. Beyond 

 the notch, the costa, apical and dorsal margins are irrorated with 

 brown scales. Specimens of this variety are exceedingly scarce ; 

 one is in the cabinet of Mr. Edwin Shepherd, which he obtained 

 from Mr. Bentley ; another is recorded by Mr. J. A. Hill, as 

 captured by himself at Almondsbury in Gloucestershire. 



Var. T. emargana has the anterior wings ochraceous or testaceous 

 yellow , reticulated with rich brown, with a broad fascia of the latter 



