800 BULLETIN UNITED STATES GEOLOGICAL SURVEY. 



above, blackish beneath. Lags browoish inwardly, white exteriorly; 

 extremity of the tibiae dotted with whitish. Fore wings white, crossed 

 by five series of black spots, outwardly bent along the centre of the 

 wing. A terminal series of irregularly sized spots. Hind wings white, 

 subpellucid, with a faded brown discal mark and series of terminal 

 marks discontinued inferioriy. Beneath the markings repeated in 

 brownish; on fore wings the spots about the discal cross- vein are larger, 

 and form the usual mark ; on hind wings the costal marks are more evi- 

 dent. Expanse 43°^". Prof. Glover has figured a moth from Southern 

 California which I think is this species. 



Tortrix sp. 



Allied to algidana, but larger and stouter, with pale lemon-yellow 

 fore wings and thorax. Primaries with an oblique, broad, abbreviated, 

 brown bar beyond the middle, over the median nervules, and a brown spot 

 on submedian interspace centrally. Hind wings fuscous. Beneath fore 

 wings fuscous ; hind wings yellow white. Abdomen whitish fuscous. 

 Length of primary IS""". 



Oncocnemis homogena n. s. 



At first sight, this species recalls the species of Homohadena. Yellow- 

 ish-gray. Median space narrow. Interior line thick, black, preceded 

 by a yellowish stain; a trace of the claviform is seen in a thickening of 

 the line at this point. Median space darker, more mixed with blackish 

 scales. Orbicular, round, rather large, gray, with black annulus. Me- 

 dian shade inconspicuous. Reniform gray, of the usual kidney-shape, 

 with black annulus, a little stained with yellowish. Exterior line pale, 

 yellowish-gray, commencing on costa with a preceding black spot, as do 

 the median shade and interior line. The t. p. line is exserted opposite 

 the cell, obsoletely dentate. Subterminal line irregular broadly pre- 

 ceded by a blackish diffuse shade. A terminal black interrupted line ; 

 fringes grayish, cut by an indistinct dark line. Hind wings pale fus- 

 cous, with dark fuscous borders ; beneath white, with discal dot, dis- 

 tinct fuscous borders and traces of a mesial line. Collar discolorous, 

 pale brown, with a black line at base. Thorax fuscous-gray. Expanse 

 of fore wing 17"*°^. Manitou, Colo., August 19, Baron Osten Sacken 

 (Xo. 7). A single specimen, in fine condition. 



ArsiloncJie absidum Harvey. 

 Webber Lake, Cal., July 22 (Osten Sacken, No. 5). 



Agrotis sierrw Harvey. 

 Webber Lake, Cal., July 22 (Osten Sacken, 'No. 3). 



Plusia sackenii n. s. 



This fine species belongs to the group with yellow hind wings. It may 

 il?e quickly distinguished from either divergens or alticola by the course of 



