Dec, 1905.] Smith: New Species of Noctuid^e for 1905. 197 



cases the entire median space is darkened. There is a variably distinct basal black 

 dash, always broken by the basal line and rarely extending to the t. a. line. Basal 

 line geminate, marked on costa and below median vein only. T. a. line geminate, 

 defining lines blackish, broken, outwardly oblique and outcurved in the interspaces. 

 T. p. line geminate on costa, outer line lost over cell, inner line crenulate, tending to 

 become lost in the male, outwardly bent on costa and then evenly oblique below. 

 Apex pale, breaking the pale irregular s. t. line which is preceded by a variable num- 

 ber of black sagittate marks. A series of small black terminal lunules. Fringes 

 concolorous, with a very narrow pale line at base. Claviform narrow, pointed, ex- 

 tending to the middle of the median space, outlined in black, the concolorous center 

 sometimes very narrow. Orbicular varying from round, complete, to oblique, oval or 

 oblong ; closed or open on costa ; white ringed, the ring edged with black scales, 

 the center of the palest ground. Reniform of good size, kidney-shaped, white 

 ringed, edged with black scales, center usually pale. Secondaries white with a nar- 

 row dusky edging in the male, thinly smoked in the female, darkening outwardly to 

 the white fringes. 



Expands : 1. 20-1.50 inches = 30-37 mm. 



Habitat. — Stockton, Utah, Sept. 20-25. 



Eleven males and about eighty females, collected by Mr. Tom 

 Spalding. The species resembles segregata and was separated from a 

 mixed lot of over five hundred examples, all of which were believed 

 to be one species. As compared with segregata the new species does 

 not have the contrasting costa and collar, and the contrasts of the 

 disc of primaries are lacking. Altogether this is a more quietly 

 marked form in which the transverse maculation is much better de- 

 veloped. The contrast between the sexes is well marked and the 

 male is altogether brighter than the female. 



Euxoa bialba, new species. 



Head and thorax ranging in color from reddish gray to deep purplish brown, 

 head sometimes paler, sometimes concolorous ; collar usually with an obvious trans- 

 verse black line, sometimes paler inferiorly. Primaries brown, variably overlaid by 

 lilac gray, darker over costal region and in terminal space, ordinary spots brought 

 into relief by the black filling between them. Basal space usually a little paler than 

 the rest of the wing, basal line usually distinct, geminate. T. a. line geminate, black, 

 the lines narrow, usually well defined, inner often wanting, only a little oblique, with 

 three almost equal outcurves in the interspaces. T. p. line geminate on the costa, 

 not well defined, and usually lost over the cell ; sometimes traceable as a crenulate 

 smoky line parallel with outer margin. S. t. line pale, narrow, a little irregular, 

 marked by a preceding costal shade as against the pale apex, and below that by the 

 usually darker terminal space. There is a narrow, somewhat lunulate blackish 

 terminal line and a narrow yellow line at the base of the brownish fringes. Claviform 

 narrow, short, rarely outlined, sometimes indicated by a few scales only. Orbicular 

 large, round or oval, concolorous or paler, rarely dark centered, edged with black 



