TORTRICINA. 127 



coloured bases. Cilia long, shining, dark grey. Abdomen dark 

 fuscous. $ Exp. al. 6-6^ lin., and frequently with the ground 

 colour and markings paler than in the tf . 



Not a common insect, variable in the intensity of the colours 

 of the anterior wings ; in character the markings resemble those 

 in L. cineraria, but they are always of a richer tint of brown. It 

 is also allied to H. trimaculana, but distinguished by the pale 

 space beyond the basal patch, which is streaked, and not plain as in 

 the latter species. 



The imago appears in July among black Poplars. It has 

 been taken at Camberwell, Blackheath, Dartford Heath, and at 

 other places near and around London. 



The larva feeds on the Black Poplar, eating the young leaves. 



Genus II. STEGANOPTYCHA, STEPH. 



Palpi longer than the head, densely clothed with scales at the sides, 

 at the apex and beneath ; the scales long towards the apex, and 

 partly concealing the apical joint. The basal joint elongate, ascend- 

 ing, truncate ; apical slender, club-shaped, as long as the basal, 

 clothed with short, appressed scales; middle moderately stout, 

 ascending, curved, thickened beyond the middle, three times the 

 length of the apical. MaxillaB longer than .the palpi. Maxillary 

 palpi minute, two-jointed; the joints globose. Thorax slender, 

 obovate. Anterior wings : in length more than twice the width. 

 The costa regularly arcuated ; the apex slightly produced ; the 

 apical margin concave : dorsal margin nearly straight. The costal 

 vein reaches the margin beyond the middle. The subcostal nervures 

 scarcely equidistant. The discoidal cell elongate, lies in the middle 

 of the wing, and extends about two-thirds its length. The sixth 

 apical nervure bends upwards towards the margin. Posterior wings 

 ample ; the apex obtuse, somewhat produced ; apical margin con- 

 cave ; anal angle slightly produced ; dorsal margin straight. The 

 median vein furcates towards its apex midway between the super- 

 median nervure and the margin. Abdomen slender, and tufted in 

 the 3 , stouter in the $ . 



The insects in this genus make a still nearer approach to 

 the Anchyloperce, and, like the preceding, the ground-colour of 

 the anterior wings is white, or whitish, but the markings much 

 more diffused over the surface. Except the last species, they 

 are included in the genus Lithographia in the Museum Cata- 

 logue; but as that name is now retained to designate those 

 species which have the costa folded, it has been necessary to 



