10 



color of the primaries and with the 

 medial band usually conspicuously 



fuscous on a paler ground blanca 



h^. Secondaries distinctly contrasting with 

 the ground color of the primaries and 

 with the medial band obscured on a 



dark-fuscous ground dis. 



b^. Fringe (primaries) with more or less distinct 

 black or blackish spots or dots at base, 

 a^. Expanse 21-24 mm., dots at the base of the 

 fringe usually clean-cut, very distinct 



(Arizona) sampita 



b^. Expanse 24-25 mm., dots at the base of the 

 fringe not clean-cut, appearing as discon- 

 colorous spots rather than as distinct dots 



(Colorado) harveyi 



b. Primaries with the ground color creamy-white ; not 

 bright satiny-chalk-white, 

 a^. Valve of male without heavily chitenized 



clasper-like projection (N. Mex. & Ariz.) parvipuncta 



b^. Valve of male with heavily chitenized clasper- 

 like projection, 



a2. Valve characteristic, Nevada vagans 



b^. Valve characteristic. So. Calif stretchi 



B. Primaries conspicuously marked by black or brownish 

 black spots formed into bands, always more than four 

 in medial — s. t. regions, 



a. Primaries marked with black or brownish black 

 only, on white or whitish ground, (two colors) 



a^ With spots on veins 2 (CUg) and 3 (Cu^) in 

 s. t. area; hind wing with a broad fuscous ter- 

 minal band soror 



b^. Without spots on veins 2 and 3 in s. t. area; 



hind wing without broad fuscous terminal band bifida 



b. Primaries marked with an additional distinctly 



brown band or line thru s. t. area, (three colors) tricolor 



II. Primaries darker; olivaceous, brown or yellow, not white, 



A. Ground color of primaries some shade of lemon-yellow citronella 



B. Ground color of primaries not lemon-yellow, 



a. Collar tinged with orange, disconcolorous with 



thorax ; habitus Grotella-like grisescens 



b. Collar not tinged with orange, concolorous with 

 thorax; habitus of a small Narthecophora pulverea, 



t. a., t. p. and reniform usually visible olivacea 



