338 



22. Platyptilia cooleyi Fernald. PI. XLIV, fig. 9. 



Platyfihlia cooleyi Fernald, Pter. N. A. 30, 1898. 



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



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



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



Barnes & McDiinnough, Check List 150, 1917. 

 Stcnot'tilia schwarzi Dyar, Proc. Ent. Soc. Wash. V, 228, 1903. 



Meyrick, Gen. Ins. C, 18, 1910. 



Id., Wagner's Lep. Cat. pars 17, 28, 1913. 



Barnes & McDunnough, Check List 151, 1917. 

 Vestiture of head and body a mixture of gray brown and tawny, with 

 a few whitish scales. Antennae dark above with a few white scales, giving a 

 va.guely dotted effect. Frontal tuft very slight; palpi moderate, porrect, touched 

 with white above and below. Thorax whitish behind. Fore tibiae brown striped, 

 the stripes often fused into broad shades on inside. Tarsi and hind legs brown- 

 ish-gray with whitish scales, paler on inside. 



Primaries with mixed whitish and brownish gray scales, olive gray in 

 general tone, becoming buff toward inner margin. Costa with a dark stripe, 

 dotted with whitish scales, which terminates above base of cleft. This is pre- 

 ceded by a subcostal whitish line which reaches costa above cleft and usually 

 forms a prominent pale mark. The cleft is preceded by a dark dot, sometimes 

 included in a vague transverse dash, and there is a similar dot in the cell about 

 half way to base. As the ground color is lighter or darker, these markings 

 vary in contrast. Lobes may or may not be crossed by the usual outer pale 

 line. Fringes grayish with pale bases containing a row of gray-brown scales 

 along outer margin. Inner margin without clusters of scales. Secondaries 

 brownish gray. Fringes concolorous with pale bases, sometimes containing a 

 few scattered scales on inner margin of third feather, but these are never dark 

 enough to be conspicuous. Expanse 22-32 mm. 



The male genitalia resemble those of tlie albida groitp. 



Distribution : Colo., Ariz., Nev., Jime to August. 



Fernald described cooleyi from "seven examples taken in Mar- 

 shall's Pass, Colo., July 15, 1888, and one taken in Colorado by Bruce." 

 There are now only six specimens labelled "M. Pass. 7-15-88" in the 

 Fernald collection, four labelled cotype, one type, and one with only 

 the name which is evidently another "cotype." The specimen col- 

 lected by Bruce is in the National Museuin, labelled as a cotype of 

 cooleyi, but it belongs to modesta Walsingham. We have specimens 

 from Silverton, Colo., July, which are almost exact matches for the 

 type, and these are evidently the same as sclnvarzi, though the unique 

 type of schwarci taken at Williams, Arizona, is in too poor condition 

 for really accurate identification. This type expands 32 mm., while 



