38 TORTRICINA. 



The costa is marked with six gemmated pale streaks, two before the 

 middle, which are produced more or less distinctly to the dorsal 

 margin, and four beyond, which are slightly lustrous, and produced 

 into metallic-lustred lines. In the apical angle is an oblique, broad, 

 brick-red band, and a similar coloured spot at the apex. The pale 

 portions of the wing are streaked with iron grey. At the anal angle 

 are a few white spots, mixed with broadish, pale, lustrous, blue 

 streaks. Apical margin edged with intense brown scales. Apical 

 scales dull brown, with drab bases, and speckled with white towards 

 the apex. Cilia glossy, iron-grey, with a fuscous tinge ; a few 

 white scales at the apex, and a dark patch level with the oblique 

 band on the apical angle. Posterior wings dull, pale fuscous. Mar- 

 ginal scales glossy, fuscous, with straw-coloured bases. Cilia glossy, 

 paler, fuscous. Abdomen dark fuscous ; the caudal tuft drab. $ Exp. 

 al. 6-8 lin. 



An uncommon species : variable in size, colour, and also in 

 the shape of its markings, especially of the basal patch, which is 

 sometimes angulated in the middle, and at others more or less 

 truncate. In general appearance it resembles the Sericorida, 

 and also Litliographia trimaculana, from all of which it is distin- 

 guished by the dark chocolate-coloured patch on the dorsal 

 margin, near the anal angle ; in this last respect it resembles 

 Notocelia Udmanniana. 



The imago appears in June and July, frequenting Hawthorn- 

 hedges, and occurs at Coombe and Darenth Woods ; near Beck- 

 enham, West Wickham, Lewisham, Northfleet, Ripley ; in Nor- 

 folk, Devonshire, Worcestershire, &c. 



Genus IX. DICHELIA, GUENEE. 



Antennae inserted in the front of the head, over the eyes ; slightly 

 stouter in the tf . Palpi longer than the head, divergent ; basal 

 joint short, stout, curved, truncate ; apical as long as the basal, 

 slender, terminating in a point, horizontal ; middle ascending, three 

 times as long as the apical, very stout, thickening from the base to 

 near the apex, slightly curved, ascending, and clothed at apex above 

 and beneath with long scales. MaxillaB slender, as long as the palpi. 

 Thorax ovate, not tufted. Anterior wings : length equals twice the 

 width. Costa arcuated somewhat abruptly at the base. Apex ob- 

 tuse ; apical margin subtruncate, straight ; dorsal margin slightly 

 rounded. The discoidal cell extends two-thirds the length of the 

 wing, somewhat arched above, and receives an internal nervure, in- 

 serted near the first subcostal nervure, and crossing to the apical 

 vein, which gives out five apical nervures, of which the first is fur- 

 cate midway from its base. Posterior wings concave on the apical 



