NORIH AMKPvICAN J.EPIDOPTERA. 61 



lumiles. sometimes united into a terminal liue. The discal spot of the under- 

 side is visible through the thin wing tissue. Beneath whitish, jiowdery, darker 

 outwardly and along the costa; secondaries with a rather large and prominent 

 discal spot. Expands 32.5-33.5 mm.; 1.30-1.34 inches. 



Hah. — Colorado ; Bruce, N().s. 27, 204. 



Tliis species is very simply marked and easily recognized. Both 

 sexes are represented in the three specimens that are now before me, 

 and both sexes are also in other collections in which I have given 

 the MS. name here used. 



I'IsityiX'rijSC'a disci!«triga n. sp. (PI. vi, fig. 10)— Ground color a rather 

 bright luteous, overlaid with black and white scales, which, massed in spots, 

 form the ornamentation of the species. Head and thorax so densely clothed 

 with these scales that it appears ashen gray, forming no distinct markings. On 

 the primaries the veins are all more or less marked with gray, a gray shade ex- 

 tends along the inner margin, most obvious in the male; another extends over 

 the median vein, gradually broadening, until at the outer margin only the apex 

 and the anal angle are not involved. The costa also, is narrowly gray. In the 

 female the median gray shade is broken beyond the t. p. line, and the ground 

 color appears. The transver.se maeulatiou is mostly obsolete, the t. p. line indi- 

 cated in some specimens by venular black, followed by white dots, and the s. t. 

 line very obscurely indicated by paler shadings. The fiingcs are gray, cut with 

 white on the veins. Orbicular small, decumbent, gray, outlined with luteous; 

 reuiform narrow, upright white, with dark centre. Secondaries whitish, out- 

 wardly powdery, with a narrow dark terminal line. Beneath white, powdery, 

 most obviously so toward the costa, each wing with a discal spot, most distinct 

 on the secondaries. Expands 33-36 mm. ; 1.32-1.45 inches. 



Hah. — Colorado ; Bruce, No. 456 ; Glenwood, Colorado, August, 

 Barnes, No. 291. 



Both sexes are rei)resented in the specimens before me, and I have 

 seen others in collections from the same State. The species is en- 

 tirely different in appearance from the preceding, and yet resembles 

 it in all essential structural characters. The luteous ground color, 

 with the prominent gray shade through the middle will render the 

 species recognizable I think. 



Platyperigea prteacuta n. sp. (PI. iii, fig. 6)— Ground color dark ashen 

 gray, ])owdered with black scales, the appearance varying according to the 

 amount of black in the mixture. Head and thorax concolorous, the basal tuft 

 black inferiorly. Primaries with the median lines single, black, forming the 

 most prouiinent feature of the wings. The basal line is single, black, distinct 

 acutely angulated outwardly in the cell. T. a. line a very broad, evenly out- 

 curved fascia, which is a little emphasized by paler scales on either side. T. p. 

 liue with small, irregular dentations, evenly outcurved over the reniform, some- 

 what incurved below. S. t. line an obscure whitish shade, defined in the costal 

 region by a dark shade in the subterminal space, which dark shade reappears 

 distinctly in the submediau interspace; but is fragmentary between. A series 



TRANS. AM. ENT. SOC. XXI. .MARCH, 1894. 



