TORTRICINA. 201 



obtuse ; apical and dorsal margins entire. Abdomen stout in both 

 sexes, suddenly acute in the $ . 



This genus is now very much restricted, but, with the excep- 

 tion, perhaps, of the last species, forms a natural group. The 

 insects comprised in it are of moderate size, and are mostly re- 

 markable for the clearly-defined, usually yellow-coloured dorsal 

 blotch. The larvae are but little known, and they mostly feed in 

 or under the bark of trees. 



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

 follows : 



A. Anterior wings with a distinctly -defined blotch upon 

 the dorsal margin. 



a. The blotch bright yellow Species 1, 2 



b. The blotch white Species . 3 



B. Anterior wings with an indistinctly -defined blotch 



on the dorsal margin Species . 4 



1 . Trauniana, SchifF. Alis anticis atro-purpureis ; macula magna 

 oblonga quadrata margine dorsali flava ; costa strigis flavis ; posti- 

 cis purpureo-brunneis. tf Exp. al. 5J-6 lin. 



Head and face dull umber, inclining to smoky black. Eyes black. 

 Palpi as long as the head, umber, inclining to ochreous at the base, 

 beneath. AntennaB : above umber, beneath inclining to grey. Thorax 

 and patagia dull umber. Anterior wings glossy umber, with an 

 olive-brown tinge ; a broad yellow blotch on the dorsal margin, and 

 yellow streaks on the costa. On the costa, before the middle, are 

 two (sometimes three), and beyond are five, bright yellow wedge- 

 shaped marks, arranged in sub-geminations, which are sometimes 

 produced into lustrous blue streaks. The dorsal patch occupies 

 more than one-third the length of the margin; its anterior edge is 

 oblique, and the posterior somewhat rounded or convex, but is 

 ar Glutted towards the costa. The ocelloid patch is obscure, and 

 represented at the anal angle by slightly-defined leaden lustred 

 streaks. Apical scales : at their tips umbreous, with dusky ochreous 

 bases. Cilia very glossy, umbreous ; in certain directions of a grey ap- 

 pearance . Posterior wings rich deep golden brown, approaching umber, 

 clothed with coarse scales. Marginal scales dark fuscous, with dusky- 

 drab bases. Cilia glossy, drab, inclining to white at the anal angle. 

 Abdomen umber, the apex paler. $ Exp. al. 5| 6 lin. Head, face, 

 and palpi paler than in the c? , inclining tc olive-brown ; the ground- 

 colour of the anterior wings also slightly paler. 



Rare in cabinets; constant in size and colour; very closely 

 allied to E. regiana, but is much smaller. The dorsal blotch, how- 

 ever, is much larger in proportion to the wing, and the shape of it 

 differs ; its anterior edge is straight, and the posterior edge 



