TORTRICINA. 55 



gress that has been made in the study of the early history of 

 this interesting group. 



The European species are numerous, of which ten are found 

 in Britain, and may be arranged as in the following Table : 



A. Anterior wings with a small fold or flap beyond 



the base of the costa in the cT Species 1-2 



B. Anterior wings with the costa in the rf folded 

 at the base, the fold sometimes extending to the 

 middle. 



a. Anterior wings with similar markings in both 



sexes Species 3-6 



6. Anterior wings with the markings in the <5 



more complicated, and dissimilar to those in the Species 7-10 



I . Sorbiana, Hlib. Alis anticis subochraceis ; basi fascia et media 

 altera obliquis, maciilaque subtriangulari ante apiccm brunneis ; 

 posticis fusco-cinereis. tf Exp. al. 11-13 lin. 



Head tawny in front, inclining to ochreous behind. Face fuscous, 

 becoming paler towards the palpi. Eyes intense purplish brown, with 

 a velvety appearance. Palpi above the same, at the sides and be- 

 tween dull ochreous, slightly paler beneath. Antennae clothed with 

 pale brown shining scales ; basal joint pale brown above, and straw- 

 colour beneath. Thorax pale fuscous. Patagia pale fuscous, but 

 paler and more shining towards the apices. Anterior wings shining, 

 tawny, finely reticulated with dull brown, and having a slightly 

 darker oblique fascia occupying the base, followed by a central olive- 

 brown one commencing narrowly at the costa, contracting some- 

 what in its course, then suddenly dilating at its hinder edge, which 

 attains the anal angle its anterior edge is nearly straight ; between 

 the central fascia and the apex, on the costa, is a brown patch of 

 semilunate shape, darkest on its anterior edge : this patch is some- 

 times faintly produced, and mingles with the central fascia at its 

 dilated angle, both together assuming the form of the letter Y ; the 

 disk of the wing at the apex reticulated with brown. Apical scales 

 short, yellowish. Cilia shining, straw-colour, and merging into grey 

 at the anal angle. Posterior wings clothed with dull fuscous scales, 

 on a pale grey ground, and with the apex narrowly yellow. Marginal 

 scales grey, with straw-coloured bases. Cilia pale grey at the anal 

 angle, merging into dirty- white towards the apex. Abdomen shining 

 fuscous grey, darkest towards apex ; the caudal tuft shining, tawny. 

 $ Exp. al. 13-14 lin. Anterior wings marked as in the $ , but 

 more distinctly, the colour richer, or with an ochreous tinge, and the 

 reticulation more diffused. Posterior wings darker at the apex, and 

 more suffused with a yellowish tinge. Marginal scales wholly straw- 

 colour at the apex. Cilia pale grey at the anal angle, merging into 

 .straw-colour at the apex. 



