28 



at costa, strongly bent backward above inner margin to near base of wing, pre- 

 ceded by a light brown shade and separated from it by a narrow pale area ; t. p. 

 line black, sinuate, slightly broken at costa, preceded by a broad dark median 

 shade which more or less unites with it in lower half of wing but which is 

 separated in costal half by a narrow pale area; discal dot usually obscured by 

 this shade ; following the t. p. line is a light brown parallel band ; s. t. line indis- 

 tinct, crenulate, whitish, shaded inwardly and outwardly in costal portion with 

 smoky, this shade being in some instances pronounced, in others only faint ; a 

 distinct crenulate dark terminal line ; secondaries much as primaries with t. a. 

 line wanting except for a dot at base of wing and median and t. p. lines wider 

 apart and parallel. Beneath pale, shaded somewhat with smoky outwardly; 

 dotted with black along costa and with a faint dotted postmedian line and small 

 discal dots. Expanse 32 mm. 



Habitat: Camp Baldy, S. Bern. Mts., Calif. 4 $. Types, Coll. Barnes. 



Very similar to cariosa Hist., but with much more strongly pectin- 

 ate antennae and with a distinct brown band beyond t. p. line ; there is 

 considerable variation in the depth of ground color and the amount 

 of smoky suffusion caused by the union of the median and t. p. lines. 



Pterot^a serrataria sp. nov. (PI. II, Fig. 9). 



Thorax gray, sprinkled with black; primaries whitish-gray, largely suffused 

 with blackish especially in the $ sex rendering the maculation obscure and 

 diffuse ; t. a. line bent outward at inner margin, geminate, the intervening space 

 tending to become filled with smoky ; a sinuate dark median line, crossing in the 

 cell a faint discal dot, the lower median area in the $ largely suffused with 

 blackish ; a curved geminate dark t. p. line, bent considerably inward below vein 

 2 and filled above inner margin by a faint ochreous tinge ; s. t. line white, crenu- 

 late, most prominent in the central portion where it crosses a smoky shade ex- 

 tending outwardly from t. p. line ; above the inner margin the subterminal area 

 is rather conspicuously whitish, forming an irregular blotch ; a black crenulate 

 marginal line ; fringes checkered ; secondaries strongly crenulate, especially in 

 the $ sex, with the maculation of primaries repeated and much as in the pre- 

 ceding species. Beneath pale, shaded with smoky and with small discal dot on 

 all wings. Expanse 29 mm. 



Habitat: Witch Creek, S. Diego Co., Calif.; Alpine, S. Diego Co., Calif. 

 (1 $). 1 $, 2 $'s. Types, Coll. Barnes. 



On account of the general similarity to the preceding species we 

 place this species in the genus Pterot&a although the $ antennae are 

 not pectinate but merely slightly serrate; its smaller size, more dif- 

 fuse appearance and the strongly crenulate outer margin in the sec- 

 ondaries of the 9 should serve to distinguish it from cariosa and 

 tremularia. 



