224 TORTRICINA. 



slightly curved, nearly three times as long as the apical. Maxillae 

 longer than the palpi. Thorax slender, ovate. Anterior wings : 

 length equals three times the breadth. Costa slightly arcuated ; apex 

 acute. Apical margin acutely truncate; dorsal margin straight. 

 The costal vein attains the margin before the middle; the subcostal 

 nervures not equidistant. The discoidal cell narrow, and situated in 

 the upper half of the wing. Posterior wings elongate, apex obtuse ; 

 apical margin concave, dorsal margin entire, basal angle slightly pro- 

 duced. Abdomen slender, tufted. 



The only species in this genus, as at present known, was for- 

 merly included by the late J. F. Stephens among the Sericorida, 

 supposing it to be the Tortrioc subsequana of Haworth (Asthenia 

 pygmceana), to which insect, independent of its not possessing 

 the pale bases to the posterior wings, it bears not the slightest 

 resemblance. M. Guenee has since placed it in a distinct genus, 

 as above. In its habits it appears to approach Sericoris, but 

 its long, narrow, almost isometric anterior wings, with their 

 acutely-truncated apex, at once separate it from that group, 

 independent of minor variations in the venation of the wings 

 and in the structure of the palpi. 



1. monticolana, Mann. Alis anticis rufo-griseis lucidis, basi fascia 

 lata alteraque medio obliquis, apiceque runs, strigis subargenteis ; 

 punctis albidis ad apicem costa3 ; posticis griseis. <5 Exp. al. 5| 

 lin. 



Head dusky, ochreous brown. Face above dusky ochreous brown, 

 grey below. Eyes black. Palpi as long as the head, fuscous at the 

 apex, drab at the base and beneath. Antennae dark grey. Thorax 

 dusky brown, pale. Patagia paler than the thorax, particularly at the 

 apex. Anterior wings glossy, with reddish brown fasciae and silvery 

 stripes mixed with black streaks. At the base is a reddish-brown 

 or ferruginous patch, extending one-fourth along the costa, and pro- 

 ceeding very obliquely across the wing to the middle of the dorsal 

 margin. At the middle of the wing is a broad, uninterrupted fascia 

 of the same colour, straight on its inner and angulated and constricted 

 at its outer edge towards the dorsal margin ; in the apical region is a 

 similarly- coloured patch. The basal patch and central fascia are 

 edged broadly with silvery stripes ; there are also one or two longi- 

 tudinal undefined silvery streaks in the basal patch ; in the apical 

 cloud are two or three large silvery spots on the costa (and another 

 within the apical margin) ; the anterior one sometimes produced into 

 a streak to the dorsal margin. In some specimens there are several 

 longitudinal black or dark brown streaks and spots, especially on the 

 basal patch and central fascia. Apical scales pale ferruginous. Cilia 

 silvery. 06s. : the lustrous streaks look of a dead white when viewed 

 from the base, but appear silvery when viewed in the opposite di- 



