THE CANADIAN ENTOMOLOGIST. 105 



ON TWO NEW SPECIES OF NOCTUID^E. 



BY H. K. MORRISON, OLD CAMBRIDGE, MASS. 



JJydrcecia semiaperia. Nov. sp. 



Antennae serrate. Collar arched, ochreous at its base, brown above. 

 Behind the collar the usual longitudinal sharp-edged thoracic crest. Ab- 

 •domen with a thick, short tuft on its first segment. % with an extended 

 ovipositor. Anterior wings above brown, with ferruginous shades. All 

 the transverse lines dark brown, regular and distinct. Half line present. 

 Interior line undulate above the median nervure ; at the latter point it is 

 bent inwardly, and advances in a nearly straight line to the inner margin. 

 Median shade very distinct, broad, not clearly defined along its edges, 

 : strongly angulated on the median nervure, and then nearly touching the 

 reniform spot. Exterior and subterminal lines obliterated on the costa, 

 below distinct, sub-parallel, broadly undulating, the former dentate between 

 the median branches. 



Ferruginous stains on the median and subterminal spaces, particularly 

 just before the subterminal line and between and beyond the ordinary 

 spots. Terminal space in fresh specimens showing a purple reflection. 

 Orbicular spot small, ferruginous, ringed with brown. Reniform spot long 

 and narrow, pure white, crossed by the black nervules, its upper half 

 'frequently more or less overspread with ferruginous shades. Nervules 

 black, with irregularly occurring white atoms. Fringes long, edged with 

 a basal and exterior black line. 



Posterior wings dark fuscous, lighter at the base ; a black line at the 

 base of the brown fringe. 



Beneath, the most conspicuous feature is the broad, black, wan exterior 



line, which extends over both wings. Uiscal dots present. On the 



anterior wing, before the exterior line, the wings are blackish. The costa 



^ subterminal and terminal spaces of the anterior, and the whole of the 



posterior wings violaceous brown, sprinkled with numerous black atoms. 



Expanse, 34 to 37 m. m. Length of body, 16 m. m. Hab. Mass., 

 New York. Not uncommon. Coll. of H. K. Morrison. 



In color this species most nearly approaches sera^ G. & R. ; in the 

 form of the spots, lorea, Guen. 



