TORTRICID^E. 333 



feeds. They most abound in summer, though a few species 

 are found in the spring and autumn. 



The larvae are cylindrical, usually transversely wrinkled, and 

 nearly naked. The pupa is slender, and the rings of the 

 abdomen armed with transverse rows of teeth. Many of 

 the larger species roll up the leaves of trees, or gather them 

 into a rude tent, with silken threads ; others devour the inte- 

 rior of fruit buds and seeds, or live in the tender shoots, or 

 under the bark, or in the roots, while some live exposed on the 

 leaves of plants. 



In Antithesia the palpi are longer than the head, and the 

 thorax is tufted behind ; the fore wings are more than twice as 

 long ps broad, the costa being regularly arched, while the apex 

 is obtuse, and the apical third of the costa is white or ochreous. 

 A. bipartitana Clem, has white fore wings, with a dark brown 

 basal patch, and a central concolorous band, with two or three 

 dark brown spots on the outer third of the costa. The tip of 

 the wing is spotted with brown, and there 

 is a pale brownish spot in the middle of 

 the white apical third of the wing. It is 

 not uncommon northwards. 



Another species has been detected on 

 the rose by Mr. F. W. Putnam. The larva Fig. 256. 



is yellowish green with a jet black head and prothoracic shield, 

 and pupates late in June, the moth appearing during July. It 

 is identical with the Antithesia pruniana of Hiibner (Plate 8, 

 fig. 13, natural size) a destructive moth in Europe, where it 

 devours the plum, as its specific name indicates. The inner 

 two thirds of the fore wings are marbled with black and lilac 

 colored scales ; the apical third being white, with three costo- 

 apical dark spots, and the extreme apex black. 



The genus Siderea has rather long fore wings, the costa be- 

 ing regularly arched, and the tip rather pointed, the outer edge 

 being concave below the tip. Clemens, doubtfully, refers his 

 S.V nubilana (Fig. 256, 7a, head) to this genus. The fore 

 wings are brown, with dark brown markings, and there is a 

 dark brown basal line and a central irregular dark brown band, 

 which becomes ochreous brown in the middle of the wing, and 

 seems to be separated from a conspicuous dark brown triangu- 



