317 



4. Platyptilia punctidactyla Haworth. PI. XLI, fig. 10, 11. PI. 



L, fig. 13. 

 Alucita punctidactyla Haworth, Lep. Brit. 479, 1812. 

 Alucita cosmodactyta Huebner, Samttil. Eur. Schmett., Aluc. pi. VII, £f. 35, 



36, 1823. 

 Alucita ulodactyla Zetterstedt, Ins. Lapp. 1012, 1840. 



Platyptilus cosnwdactylus Walker, List Lep. Ins. B. M. XXX, 929, 1864. 

 Phityf'tilus cosmodactyliis van stacliydalis Frey, Mitt. Schweiz, Ent. Ges. III. 

 290, 1870. 



Id., Stett. ent. Zeit. XXXII, 125, 1871. 

 Amblypiilus cosmodactyliis Walsingham, Pter. Cal. Ore. 23, pi. II, £f. 2, 4, 1880. 



Dimmock, Psyche III, 403, 1882. 

 %Amblyptilia cosmodaotyla Hofmann, Deiitsch Pter. 85, 1895. 

 Amhlyptilia cosmodactyla id., op.cit. 89, 1895 (biol.). 

 Amblyptilia punctidactyla Tutt, Pter. Brit. 57, 1896 (bio!.). 

 Platyptilia cosmodactyla Fernald, Smith's List Lep, N. A. 87, 1891. 



Mevrick, Handbook 433, 1895. 



Fernald, Pter. N. A. 25, pi. IX, ff. 1-3, 1898. 



Dyar, Proc. Wash. Acad. II, 499, 1900. 



Fernald, Bull. 52, U. S. N. M. 442, 1902. 



Dyar, Proc. U. S. N. M. XXV, 399, 1902 (biol.). 



Id., op. cit. XXVII, 922, 1904 (biol.). 



Anderson, Cat. B. C. Lep. 50, 1904. 



B. C. Ent. Soc. Check List 42, 1906. 



Meyrick, Wagner's Lep. Cat. pars 17, 12, 1913. 



Barnes & McDunnough, Check List ISO, 1917. 



Britton, Ins. Conn. 103, 1920. 

 Amhlyptilia cosmodactyla ab. nivca Bankes, Ent. Rec. XVIII, 39, 1906. 

 Platyptilia monticola Grinnell, Can. Ent. XL, 316, 1908. 



Barnes & McDunnough, Check List 150, 1917. 

 Platyptilia punctidactyla Meyrick, Gen. Ins. C, 10, 1910. 



Head and thorax clothed with black tipped grayish scales Antennae dark 

 above and light below, the dark area evidently made up of connected spots. 

 Frontal tuft rather short, bluntly conical, surpassed by the third joint of the 

 concolorous palpi. Legs blackish, with white scales intermixed, and sometimes 

 with imperfect white stripes on the fore and middle tibiae and annulate tarsi. 

 Thorax in well marked specimens black behind with a white W mark. Abdomen 

 very variable in North American specimens, sometimes with a rather evenly 

 colored vestiture of mixed white, tawny and blackish scales, sometimes with a 

 mid dorsal stripe, as in European specimens, made up of paired curved whitish 

 dashes on the several segments, their convex sides together and the included 

 space darker. 



Primaries brownish gray to olive-black with a very variable superficial 

 white irroration. Costa with white dots on a blackish ground, running from 

 base to cleft. A black triangle, paler on the costa, reaches just beyond base 



