PLATYPTILIA MARGINIDACTYLA. 



Pterophorus marginidactylus Fiteh, N. Y. Rep., Vol. I., p. 848 



(1854). 

 Pterophorus nebulcedactylus Fitch, N. Y. Rep., Vol. I., p. 849 



(1854). 

 Platyptilus Bertrami . RoessL, Wien. Mts., Vol. VIII., p. 54 



(1864). 

 Platyptilus Bischoffii Zell., Stett. Ent. Zeit., Vol. XXVIH., 



p. 333 (1867). 

 Platyptilia Bertrami Zell., Stett. Ent. Zeit., Vol. XXXIV., 



p. 135 (1873). 



Platyptilia Bischoffii Zell., Verb. z.-b. Ges., p. 317 (1873). 

 Pterophorus cervinidactylus Pack., Ann. Lye. N. Y., Vol. X., 



p. 266 (1873). 

 Platyptilus bertrami Wlsm., Pter. Cal. and Ore., p. 3, Plate I., 



'fig. 3 (1880). 



Platyptilia bertrami Tutt, Mon., p. 31 (1891). 

 Platyptilia Bertrami Mey., Brit. Lep., p. 434 (1895). 

 Platyptilia Bertrami Hoi, Deut. Pter., p. 55 (1895). 



Expanse of wings, 22-28 mm. Head, palpi, frontal tuft, tho- 

 rax and abdomen pale ochre yellow, the collar and outside of the 

 palpi sometimes a little darker. Palpi and frontal tuft of nearly 

 equal length, extending forward of the head a distance equal to 

 the length of the head. Antennae whitish, dotted above with dark 

 brown. All the coxae, femora, anterior and middle tibiae brown- 

 ish yellow on the outside, whitish within. Hind tibiae whitish at 

 the base, dull brown on the outer half. All the tarsi whitish, ex- 

 cept in some examples the segments of the hind tarsi are touched 

 with dull brown. Fore wings somewhat falcate at the end of the 

 first lobe, pale ochre yellow, fuscous along the costal edge, broken 

 by an oblique light shade above and a little beyond the end of the 

 fissure, within which a darker shade extends from the costa across 

 the cell containing two brownish dots, one on each angle of the 

 cell. The anterior dot is seldom present and often both are 

 absent. An elongated ochre yellow spot rests on the cell half- 

 way between the discal dots and the base of the wing, a second 

 elongated spot on the hind margin at the base and another near 

 the middle of the wing. The lobes are somewhat darker at the 

 outer end, sometimes with an indication of a pale subterminal line. 

 Fringes whitish, with a darker shade outwardly, and with a dark- 

 brown basal line which extends a little into the fissure. The 

 darker ochre yellow spots are often extended so that nearly the 

 whole surface of the wing is of this color. Hind wings dark 



