84 TORTRIC1NA. 



being more or less freckled with shining iron-grey scales. The 

 costa is maculated throughout, the markings towards the apex being 

 geminated and of an obscure ochreous colour. The apical spot black 

 and distinct ; the white portion of the wing speckled with black. 

 Apical scales ochreous drab, speckled with black. Cilia of same 

 colour, but paler. Posterior wings : at base pale grey, softening 

 into dilute umber at the margins. Marginal scales dilute umber. 

 Cilia very pale straw-colour. Abdomen smoky brown ; the caudal 

 tuft dusky ochreous. 



A very rare, and at the same time a very variable species ; the 

 dark or costal portion of the wing varies in intensity, from 

 chocolate to umber, and the dorsal portion from white to dark 

 dusky grey, sometimes of an ochreous colour. The instance 

 above described has much the appearance of the semifuscana 

 variety of Pcedisca piceana. 



The imago appears in March and April, and flies from 10 A.M. 

 to 1 P.M. It was captured by Mr. T.Wilkinson of Scarborough (to 

 whose kindness we are indebted for specimens of this insect), who 

 took them near Scarborough among mixed growth ; but they 

 seem most attached to the Sallows. 



"The larva is whitish, or pale green; the head pale brown. 

 It feeds on Sallows and Willows." Ent. Ann. 1857, p. 119. 



Genus IX. PJEDISCA, TREITS. 



Palpi longer than the head, densely clothed with scales, especially 

 at the apex of the middle joint. Basal joint drooping, curved, pyri- 

 form, truncate ; apical slender, much longer than the basal, sub- 

 cylindric ; middle stout, club-shaped, thickest towards the apex, 

 twice the length of the apical. Maxilla? longer than the palpi. An- 

 terior wings : length equals three times the breadth.' Costa arcu- 

 ated ; in the c? folded to the middle ; apical margin truncate, ob- 

 lique ; dorsal margin rounded. The discoidal cell extends two-thirds 

 across the wing. The costal vein reaches the costa considerably be- 

 yond the fold ; subcostal nervures remote ; the subcostal vein gives 

 out a nervure midway between the first and second subcostal ones, 

 which passes along the discoidal cell and attains the apical vein at 

 the insertion of the second apical nervure. Posterior wings very 

 broad ; apex subacute ; apical margin concave ; dorsal margin entire. 

 Abdomen slender, and tufted at the apex in the $ , stout and obtuse 

 at the apex in the $ . 



This is another genus much reduced in numbers, and the 

 individuals comprised in it attain to dimensions beyond the 

 average ; some of them are subject to considerable variation in 



