— 114 — 



Sy//(>/^s/s of Species. 



Willys translucent, uniform pale mouse gray- .... simplex. 

 More opaque with irroralions and discal dot .... fuscipes. 



P. simplex Walker. 



1856 — Walker, Cat. Brit. IMiis., pt. VII, p. 1679. 



iittirina Walker. 



1864— W.VLKEK, Cat. Brit. Mus., pt. XXXI, p. 276. 



clarus Grote and Robinson. 



1871 — Grote & Rohinson, Trans. Am. Ent. Soc., Vol. Ill, p. 176. 



Pale mouse gray, collar and abdomen tinged with ocherous. 

 Wings uniform in tint, translucent, darker toward apices. Anten- 

 noe dark. Expanse, 22 mm. 



Habitat, Montana. 



P. fuscipes Grote. 



1883— Grote, Can. Phit., Vol. XI, p. 86. 

 Apices of wings squarer than in simplex. Uniform gray, 

 blackish scales on a mouse gray ground, with obscure discal dot ; 

 central area of wings translucent, opaque toward apices. Ex- 

 panse, 22 mm. 



Habitat, Arizona. « 



Cicnus Bruceia N'einnoe^^eii. 

 1S93 — Ni-.nM(iKc;EN, Journ. N. \'. Ent. .Soc., Vol. I, p. 36. 

 B. pulverina A^ei/i/ioeoe/i. 



1893 — Neumoegkn, Journ. N. V. Ent. Soc, Vol. I, p. 36. 

 Blackish gray with pale ocherous white spots on primaries 

 very diffuse and ill defined, consisting of one in cell and at end of 

 cell, a shade on centre of internal margin, and an irregular term- 

 inal border. Secondaries sordid white, very faintly ocherous. 

 Expanse, 35 mm. 



Habitat, Colorado. 



Cicnus Hyaloscotes Butler. 

 1881— Butler, Ann. IMag. Nat. Hist., (5) Vol. VIII, p. 314. 



H. fumosa Butler. 



1881— Butler, Ann. Mag. Nat. Hist., (5) Vol. VIIT, p. 314. 



Semitransparent, smoky gray, with darker marginal line, 

 veins and fringes. Body blackish, clothed with long whitish 

 hairs; legs pale grayish brown. Expanse, 27-31 mm. 



Habitat, Mt. Shasta, California. [Butler]. 



