150 GEO. D. HULST. 



5. Costa strongly arched ; wings broad, oval ; basal line black on both sides its 



whole length bif*a!>iciella. 



Costa not strongly arched ; wings narrow ; basal line black shaded iu part 

 only 6. 



6. Fore wings light gray ; discal spot annulate aliciilella'. 



" nearly white; discal spot prominent, black o<liO!<»ella. 



7. " blackish; lines distinct teiiebrosella. 



gray 8. 



8. " basal field even gray, lighter than rest of wing. 



seiniobscurella n. sp. 

 '' uneven in color and with inner basal shadow line 9. 



9. " dull ochreoLis ou inner margin piiiiiilella. 



" with reddish spot on inner margin within basal line and white 



spot without iittbiferella. 



" without ochreous or reddish color aiiiiulosolla. 



1. S. pumilella Eag., Diag. N. A. Phyc. p. 8, 1887. — Expands 17 mm. 

 Fore wings blackish gray, with a brownish tinge, basal area paler, with an ochre- 

 ous tinge at base on inner margin. First line whitish, ill defined, dilated and 

 very diffuse externally toward inner margin, preceded by a straight, reddish 

 ochreous, black edged band, not reaching the costa. Second line sinuous, rounded 

 in the middle. Discal spots with a tendency to form a convex streak. 



Texas, New Mexico, Arizona. Taken in April, May and August. 



2. S. aiiiiulosella Rag., Diag. N. A. Phyc. p. 7. 1887 (Nephopteryx); Cat. 

 Ento. Am. v, 115, 1889 (Salehria). — Expands 20 mm. Very like Salebria tenebro- 

 sella, but the wings are distinctly more elongated, njucli paler, without any traces 

 of red scales; first line hardly paler than the dark gray ground color, distinctly 

 margined internally to the dorsal fold on inner margin, and externally from 

 costa to dorsal fold ; basal area darker than the rest; discal spots very distinct. 



Texas. Taken in April, May, June, August and September. 



3. S. nubiferella Rag., Diag. N. A. Phyc. p. 8, 1887. — Expands 21 mm. 

 Very similar to annuloseUa, but broader, blacker ; the black edging of the first 

 line on the costa is on a line with the internal black edging on the inner margin, 

 whilst in annuloseUa it goes beyond the exterior edging. Second line distinctly 

 lined with black, dentate and rounded in the middle. Discal spots coalescing 

 into a black streak. A whitish patch after first line on inner margin. 



Texas. Taken in May, August and September. 



It is with extreme hesitation I retain these three preceding forms 

 as good species. The type forms are not very distinct in annuloseUa 

 and nubiferella, and even these do not represent extremes. With 

 over a hundred specimens before me there is every gradation from 

 dark gray to nearly pure white in ground color, a gradual oblitera- 

 tion of the red of jmmilella, and of the white spot in annuloseUa, 

 and of the amount and apparent position of the basal shadings. 

 All, moreover, have a characteristic marking of the abdomen, in 



