297 



on each primarj' tubercle; Dr. Dyar's figure accentuates these secondary hairs, 

 giving the impression that they are nearly as long as the primary, dark ones, 

 which was far from the actual case in all specimens examined by me. 



"Pupa (Fig. 1).— Rather bluntly tnmcate at apex with four short horns 

 arising from the base of the antennal and eye-sheaths and a distinct sub-dorsal 

 ridge extending as far as fourth abdominal segment. Colour green, with the 

 horns and surrounding area extending over the prothorax vinous pink; a large, 

 pink, dorsal patch is also present on each of the third and fourth abdominal 

 segments (not segments 4-S as stated by Dr. Dyar). The wing-cases are darker 

 green than the remainder of the pupal integument and possesses three more or 

 less complete parallel rows of minute white clubbed hairs; the sheaths of the 

 legs and mouth parts are not very clearly differentiated and are well sprinkled 

 with minute white warts on lenticles, particularly numerous on the eye caps. 

 The tubercular setae of the larval stage are present, tubercles I and II being 

 situated on the subdorsal ridge and particularly prominent on the pink-coloured 

 segments. The prothoracic plate and the dorsal portions of the other thoracic 

 segments are heavily sprinkled with small white lenticles; these lenticles on the 

 abdominal segments are generally restricted to the area contiguous to the tuber- 

 cular setae, this area being bounded posteriorly by a row of four or five short 

 white clubbed hairs placed at regular intervals. The cephalic portion of the 

 modified tenth abdominal plate contains a cluster of minute pinkish hairs 

 and the cremaster is composed of a larger cluster of similarly coloured, glut- 

 inous hairs." 



Genus Pterophorus Geoffrey. 

 Logotype Alucita didactyla Linn. 



Pterophorus GeofEroy, Hist. Nat. Ins. II, 90, 1762. 



Fabricius, Syst. Ent. 671, 1775 (in part). 



Latreille, Consid. Gen. 442, 1810. Cites didactylus as type. 

 Oxyptilus Zeller, Isis X, 765, 1841. 



Wallengren, Skand. Fjad. 14, 1859. 



Zeller, Stett. ent. Zeit. XXVIII, 335, 1867. 



Jordan, Ent. Mo. Mag. VI, 121, 1869. 



Meyrick, Trans. Ent. Soc. Lond. 8, 1886. 



Id.,' op. cit. 485, 1890. 



Femald, Smith's List Lep. N. A. 88, 1891. 



Tutt, Pter. Brit. 60, 1891. 



Meyrick, Handbook 431, 1895. 



Hofmann. Deutsch. Pter. 49, 119, 1895. 



Fernald, Pter. N. A. 16, 1898. 



Id., Bull. 52 U. S. N. M. 441, 1902. 



Tutt, Ent. Rec. XVII, 35, 1905. Cites pilosellae Zell. as type. 



Meyrick, Gen. Ins. C, 6, 1910. 



Id., Wagner's Lep. Cat. pars. 17, 5, 1913. 



Walsingham, Biol. Cent. Am., Lep. Het. IV, 435, 1915. 



