1864.] 



509 



TORTRICID.E. 



ANCHYLOPERA Stephens, 

 icad. Nat. Sci. Pliila., Aug. ISfiO, p. 348. 



This >>enus can be divided into very 

 well niiirked groups. The first group, 

 of which A. Spiresefoliona may be 

 taken as the type, has the median vein 

 of the hind wings 3-branched and 

 the apex of the fore wings acutely 

 produced. 



The second group of which A. ore/- 

 lana may be taken as the type, ha,s 

 the median vein of the hind wings 

 4-branched, the two central branches 

 arising from a common stalk, and the 

 apex of the fore wings acutely pro- 

 duced as in the first group. 



The third group is represented by 

 A. costomacufana, in which the apex 

 of the fore wings is not acutely pro- 

 duced, but the hinder margin is fal- 

 cate and the tip sometimes bluntly 

 produced. The median vein of the 

 hind wings is 4-branched, the central 

 bi-anch being furcate. The disk of 

 the fore wings has a secondary cell 

 and a false nervure running; throutrh 

 1, w„„ 1 ^f J 7, 7 T^ -c it from one of the branches of the 



la Mead ol A. nubeculana. lb Fore _ v, »< .v. 



wing, Ic Hind wing— 2a Head of ^. ^ledian vein. The structural illus- 

 oceUana. 2b Fore wing. 2e Hind wing trations which accompany this paper 

 -?,^U^^AoiA.mediofasciana. .3b Fore ^jn g^^ve to give a definite notion of 

 wing. 3c Hind wing. , ^ p ^^■ i • 



The palpi of .1. oceUana have been ^^'^'^^. P'^^P'^ ^""^ facilitate their re- 

 partially denuded by mites. cognition. 



The members of the genus arranged in groups, will therefore stand 

 thus : 



GROUP I. 

 Hind wings with median vein 3-branclied. 

 i^ Tiji of fore wings acutely produced. 



