TOKTRIC1NA. 199 



fuscous. Thorax and patagia fuscous. Anterior wings pale bluish, 

 shining grey, with umber fasciae and markings. At the base is a 

 large streaky umber patch, somewhat shining and grey, nearly to its 

 edge, which is rounded and slightly undulate. At the middle of the 

 costa commences a sharply- defined fascia, its anterior edge concave, 

 narrow from its origin to the middle of its course, then suddenly 

 dilated to double the width to the dorsal margin, which it attains 

 towards the anal angle. On the costa are six geminations, two be- 

 fore the central fascia and four beyond, with umber interspaces ; 

 those towards the apex are produced, and unite into a curved mark 

 which proceeds along the apical region. Apical spot distinct. At 

 the anal angle are one to two umber streaks. Apical scales umber, 

 with the tips drab. Cilia iron-grey, with patches of pale umber, 

 and the tips pale. Posterior wings dull, pale umber. Marginal 

 scales fuscous, with yellowish bases. Cilia long, drab. Abdomen 

 slightly glossy, umber, the caudal tuft dull drab. $ Exp. al. 

 in. 



Tolerably abundant where the food-plant grows. Of the size 

 of S. nanana, but has its anterior wings broader and more di- 

 stinctly fasciated. It is not very variable either in size or colour. 



The imago appears in April, May, and June ; the <S flying in 

 the afternoon, the $ at rest. It occurs in Devonshire and in 

 the north of England ; also near Dublin. 



The larva feeds on Vaccinium myrtillus (the Bilberry), and may 

 be found thereon in June, July, and August. 



GENUS V. EUCELIS, HUB. 



Palpi as long as the head, remote, ascending. Basal joint mo- 

 derate, drooping, truncate ; apical minute, oval, not so long as the 

 basal ; middle ascending, curved, nearly isometric, about four times 

 as long as the apical. Maxillae longer than the palpi. Thorax 

 robust, trigonate behind. Anterior wings : the length rather more 

 than twice the width. Costa slightly and regularly arcuated. Apex 

 obtuse. Apical margin rounded, dorsal margin straight. The dis- 

 coidal cell lies in the upper half of the wing ; does not extend two- 

 thirds its length. The costal vein attains the margin before the 

 middle. Subcostal nervures not equidistant ; the second, third, fourth 

 and fifth apical nervures nearly parallel. Posterior wings ample ; 

 apex acute ; apical margin slightly concave, dorsal margin entire ; 

 basal angle slightly produced. Abdomen stout in both sexes, sud- 

 denly acute in the $ . 



There is only one British species in this genus, and no other 

 appears to be known upon the Continent. It may be distin- 



