336 



This magnificent species is so easly recognized that we give only 

 a brief description of it. One paratype is in the Fernald collection, 

 without abdomen, and is the only specimen which we have seen 

 besides the female mentioned above. Walsingham's figure is rather 

 browner than either of these. 



The early stages are still unknown. 



20. Platyptilia albiciliata Walsingham. PI. XLIII, fig. 10. PI. 



L, fig. 15u. 

 Platyftilus albiciliatus Walsingham, Pter, Cal. Ore. 17, pi. I, f. 13, 18811. 

 tPlatyptilia alhiciliata Fernald, Smith's List Lep. N. A. 87, 1891. 



Id., Pter. N. A. 32, pi. IX, ff. 6-8, 1898. 



Id., Bull. 52 U. S. N. M. 443, 1902. 



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



Meyrick, Gen. Ins. C, 12, 1910. 



Id., Wagner's Lep. Cat. pars 17, 16, 1913. 



Barnes & McDiinnough, Check List ISO, 1917. 

 The paratype in the Fernald collection is, as described by Walsingham, 

 of an even dull brown shade. It has a very faint indication of the dark triangle, 

 and the thorax is somewhat lighter behind. The palpi are moderate, oblique, 

 and the frontal tuft very short and blunt. 



We refer five specimens, four from British Columbia and one from Mon- 

 tana, to this species. These diflfer in having the triangular spot well marked, 

 the outer pale line evident at least on the first lobe, and some irroration of 

 bhiish-white scales on the disk. The fringes, as in the paratype, are grayish 

 with pale bases which bear a row of dark scales on the outer margin. The 

 inner margin in the paratype and four of our specimens has only a trace of 

 scale clusters. The secondaries are concolorous, their fringes with pale bases, 

 sometimes conspicuous, and a few scattered brown scales along the inner mar- 

 gin of the third lobe. Expanse about 21 mm. 



Distribution : N. Cal. to B. C. Montana ? Late May to July. 

 The specimen which we first took to be this species are those 

 now placed tentatively as Carolina. They differ in their lighter, more 

 tawny shade of brown, in the two well marked scale tufts on the 

 inner inargin of the primaries, and the more pointed uncus. Fernald's 

 figure shows that in his paratype of albiciliata the uncus was broadly 

 spatulate at the tip, and our British Columbia series agree in this 

 structure, as well as in the dull ground color. We had set these speci- 

 mens aside as new, but have little hesitation in applying this name to 

 them, though they are distinctly marked. It is quite likely that Wal- 

 singham's series of six, taken on the same day, were an abnormally 



