NATURAL SCIENCES OF PHILADELPHIA. 20V 



nifovm, more acute inferiorly than in H. semiaperta^ shaded with 

 purplish and not well defined superiorl}', somewhat Y-shaped. 

 Terminal space again darker tinted; fringes concolorous. Thorax 

 like fore wings. Hind wings dark fuscous, silk3\ Beneath paler, 

 purply powdered, without perceptible markings. Antennffi simple. 

 Expanse 28 to 30 mm. Habitat. Newtonville, Mass. (Mr. R. 

 Thaxter, Nos. tOl and 587). Taken June 6th and August 7th. 



Pseudorthosia pectinata, n. s. 



% . The tibise are all spinose. The species differs from the 

 Californian P. variabilis in the longer pectinations of the anten- 

 nae. The color is probably variable as in the Californian form. 

 In the specimen it is ochre3^-brown, somewhat olivaceous ; all the 

 lines are obsolete. The reniform is merel}'' indicated by a vague 

 clouding. The subterminal line is preceded on costa by a deeper 

 tinting. Hind wings blackish fuscous without lines. Beneath 

 quite pale, with a brighter dusting of scales, without markings, 

 except a lunulate discal mark on the fore wings. Thorax like 

 primaries above. 



Expanse 35 mm. Habitat. Colorado Territory (Mr. Mead, 

 No. 37). 

 Pseudorthosia variabilis, Grote. 



Mr. Behrens has taken a number of specimens at Saucelito dur- 

 ing September, which vary from olivaceous through orange-brown 

 to pale in color. The species maj^ always be recognized by the 

 median shade, and the configuration of the stigmata. 



Plusia labrosa, n. s. 



-J,. A lovely species, larger than P.pasiphaeia Grote, and differ- 

 ing in color and the shape of the metallic mark. Ros}^ purple, 

 shaded with olivaceous brown on the median space below the 

 nervure, before the subterminal line, and on terminal space at the 

 extremities of veins 2 to 4, and again at apices. Median lines 

 narrow, pale, stained with ochreous. Reniform narrow, 8-shaped. 

 Metallic mark bold, 3'ellow white, not divided, extending out- 

 wardly nearl}' to the t. p. line, resembling that of Precationis, to 

 which this handsomer species is allied. Subterminal line distinct, 

 deeply angulated, forming two broad teeth between veins 2 and 4, 

 beyond which the terminal space shows three olivaceous shades. 

 Hind wings fuscous, wuth Itroad blackish borders. Head and 

 thorax rosy purple, shaded with olivaceous brown on the collar 



