316 TORTRJCINA. 



1. hamana, Linn. Alls anticis maris flavis; foemince sulphureis ; 

 litura hamata ad angulum analem, punctis strigisque fulvis vel 

 ferrugineis; posticis cinereis. J Exp. al. 10-1 1^ lin. 



Head and face lemon- colour. Eyes black, with a velvety appear- 

 ance. Palpi twice the length of the head, lemon-coloured above and 

 between ; ferruginous at the sides and beneath. Antennae fuscous. 

 Thorax and patagia lemon- colour, the latter ferruginous at the base. 

 Anterior wings dull, lemon- colour, with ferruginous marks, more or 

 less numerous and intense in different specimens. Towards the 

 apex is a long ferruginous hook-like mark, with the point directed 

 to the apex, and extending from the anal angle towards the middle 

 of the disk : this mark is frequently almost, and sometimes entirely, 

 obliterated ; at others more or less produced towards the apex ; the 

 base of the costa, a spot before, and another beyond the middle, 

 pale ferruginous. Near the dorsal margin, one-third from the base, 

 is another spot : this is sometimes produced into a streak, occasion- 

 ally interrupted and directed towards the apex of the hook-like 

 mark. In some specimens a faint, undulating, ferruginous streak runs 

 near the apical margin. Apical scales lemon-colour, tipped with pale 

 ferruginous, especially towards the anal angle. Cilia lemon- colour, 

 ferruginous at the anal angle. Posterior wings dark, fuscous, clothed 

 with coarse scales. Marginal scales dark, fuscous, with cream- 

 coloured bases. Abdomen fuscous, grey, with the apex lemon- 

 coloured. Exp. al. 8-| 9-J lin. Anterior wings paler in colour 

 than in the tf , and the markings more dilute and less numerous. 

 Posterior wings paler. 



A very common species ; variable in size and in markings. 

 It is allied to X. Zcegana, but readily distinguished by the long 

 hook-shaped mark originating at the anal angle. The variety 

 X. diversana, Hub., has the disk of the anterior wings rather 

 strongly marked with ferruginous streaks towards the base. 



The imago appears from June to August, frequenting Thistles. 

 It occurs throughout the Metropolitan district and other parts of 

 the country. It likewise occurs in the vicinity of Edinburgh, 

 but sparingly. 



2. Zcegana, Linn. Alis anticis flavis ; ante medium puncto, postice 

 ferrugineis, macula rotundata flava ; posticis cinereis. tf Exp. al. 

 8-9 lin. 



Head and face pale orange. Eyes black. Palpi twice the length 

 of the head ; pale orange above, between, and at the base beneath ; 

 apex beneath and at the sides ferruginous. Antennae fuscous. 

 Thorax orange on the vertex, more or less edged at the sides with 

 ferruginous. Patagia at the base and inwardly ferruginous ; orange 

 outwardly and at the apex. Anterior wings dull, rich yellow, with 



