36 TORTRICINA. 



white scales behind, and wholly white under the antennae. Face 

 shining, white above, black below. Eyes black. Palpi white, the 

 terminal joint pale brown. Antennae fuscous, the basal joint clothed 

 with black scales above, and white beneath ; the tip of the basal 

 joint white. Thorax white, with one or two fine waved bands of 

 black across the vertex ; the bifid crest rich brown. Patagia white, 

 with a black spot near the base. Anterior wings shining, snow- 

 white, with a pearly iridescence. The costa is streaked throughout 

 with fuscous, more broadly at the apex. The base of the wing at 

 the costal region, and the dorsal margin, excepting a few dusky 

 streaks, to near the anal angle, broadly white ; the remainder of the 

 costal half and the apex beautifully mottled with black, obscure 

 brown, white, and lustrous blue spots and markings; the blue 

 markings are most distinct towards the apex and apical margin. 

 Near the base, on the dorsal margin, is a cluster of minute black 

 dots. Apical scales obscure brown, with ochreous bases. Cilia 

 mottled brown, with paler bases, becoming lighter at the anal angle. 

 Posterior wings fuscous, darkest at the apex. Marginal scales 

 fuscous, the bases whitish. Cilia whitish, shining. Abdomen pale 

 grey ; the caudal tuft subochreous. Exp. al. 10 lin. In general 

 colour darker than the tf . 



This beautiful species is not very common, nor is it subject 

 to variation. The sordid lustrous blue marks, disposed inde- 

 pendently in patches on a white ground, is a peculiarity which 

 renders this insect conspicuous and remarkable; the lustrous 

 blue markings in the Tortricina assume usually the form of 

 streaks and spots. 



The imago appears in June, July, and August, among Sallows 

 and Willows, in the metropolitan district, and the south and 

 south-west of England. We have taken it among Aspens and 

 Alders. According to Curtis, it is found settling in the " trunks 

 of Sallows and Willows, especially of S. Capr&a and viminalis." 



The pupa is 5| lines long. The head, thorax, and wing-cases 

 are black, the limb-cases chocolate-brown and shining. Abdomen 

 deep brown, each segment paler posteriorly ; caudal extremity 

 armed with yellowish-brown hooks. 



The larva is 9 lines in length, of a dull red-brown colour, and 

 active, stoutest in the middle. The head is small, heart-shaped, 

 black and shining ; shield black, with a subdued gloss, and with 

 its fore margin dull brown ; the spots are oval, elevated, black, 

 and shining. There is a large, round, rugose, black plate upon 

 the anal segment. Legs dull brown, with the bases of the joints 

 black. It feeds on the various species of Willow, folding the 

 leaves with white silk. It goes into pupa about the beginning of 

 June, and remains in that state about fourteen days. 



