228 REVISION OF MAMESTRA SMITH. 



[J-scripta is darkest, blackish brown iu color, the reuiforin iuferiorly 

 outlined in white, forming; a distiuct U. 



Rosea is the only species iu which all the lines are present ; they are 

 siugle, darker brown than ground color, and the ordinary spots are 

 coucolorous. The thorax is deeper red brown and like the following. 



Congermana lacks the transverse lines, but has the s. t. line indicated 

 by white scales, and the ordinary spots, though not defined, yet well 

 marked by white patchy spots. 



Vindemialis is almost immaculate rather dark red-brown, a few white 

 scales barely indicating the ordinary lines and spots. Practically the 

 wings may be said to be immaculate. 



Picta is au aberrant species, and almost entitled to form a separate 

 group. The wings are more pointed and narrower than in any of the 

 preceding. The primaries are carmine shaded, and the secondaries 

 are white. The transverse maculation is wanting and the ordinary 

 spots are large and very irregular, powdery and not distinctly outlined. 

 The genitalia are also very diflt'erent from any of the preceding. 



In tabular form the species may be separated as follows : 



Apices of pri luaries rectaagular ; secondaries dusky. 

 Blackish browu, all the maculatiou obsolete, reuiforru inferiorly white lined. 



U-SCRIPTA 



Reddish or red-brown. 

 Transverse lines darker brown, distinct, single. Ordinary spotscou colorous, 



outlined in dark brown rosea 



Transverse lines obsolete. 

 Ordinary spots and usually s. t. line indicated by pale blotches or scales. 



CONGERMANA 



Maculatiou all obsolete vindemialis 



Apices of primaries produced ; secondaries white. 



Crimson brown red; maculatiou obsolete; ordinary spots indistinctly marked, 

 paler, reniforra irregular picta 



Mamestra u-scripta, sp. no v. 



Head and thorax dark blackish browu, powdery. Primaries a very 

 slight shade paler, powdered by a few whitish scales along costal and 

 inner margin. Veins black marked, with occasional white scales inter- 

 mixed, the fringes cut with white, opposite. AU the transverse macula- 

 tion obsolete, except for a black terminal line followed by a yellowish 

 line at base of fringes. Orbicular wanting. Reniform coucolorous, the 

 lower edge white marked, forming an irregular U or V. Sometimes a 

 few white scales indicate the upper portions of the spot, but as a rule 

 the upper part is entirely unmarked. Secondaries smoky brown with 

 a small darker discallunule, and a dark followed by a pale terminal line. 

 Beueatli, pale, powdered with black. A dusky outer Hue and a dis- 

 tinct discal lunule on all wings. 



Expands 30-4:l""" (1.56 to 1.64 inches). 



Habitat. — Sierra Nevada, Californifk; Nevada County, California. 



I have received this from Mr. Edwards, and there are two female 

 specimens in the National Museum (through C. V. P.), which bear 



