1874.] 147 [Morrison. 



spots indistinctly marked in black. Reniform spot set out and encir- 

 cled by irregular patches of white atoms, which extend towards the 

 base of the wings along the median nervure. A double row of black 

 dots on the nervules beyond the exterior line. Exterior line irregu- 

 lar, clearly defined outwardly, shaded inwardly; in one specimen this 

 inner shade is uniform, and finally lost in the ground color. In the 

 other, it forms cuneiform markings which are also clearly defined 

 inwardly. Clear white dots on the median branches, just beyond the 

 sub-terminal line. All the nervules are surrounded near their termi- 

 nation by fine dust-like white atoms, similar to those near the reniform 

 spot. Each nervule with a clear white dot at its end, at the base of 

 the fringe. Fringe concolorous. Posterior wings transparent, slightly 

 nacreous, with a black terminal band. Anterior wings beneath gray, 

 yellowish on the costa, and whitish along the inner margin. The 

 nervules are distinctly marked with black, until they reach a sub- 

 terminal light band; which is followed by a narrow gray band inter- 

 rupted by them; beyond, the terminal space is again light. Pos- 

 terior wings beneath yellowish white, with scattered gray atoms, and 

 a dull terminal band more conspicuous near the costa. 



One specimen taken at Tuckernuck Island, near Nantucket, and 

 now in the collection of A. R. Grote. Another taken at Brooklyn, 

 N. Y., in my possession. 



I have referred this species to Segetia Boisd., with some hesitation, 

 as I have not the two rare European species of the genus to compare 

 with. Our species agrees very well with the generic characters as 

 given by Lederer. It can be recognized by the smooth, close, thoracic 

 squamation, and the distinct black lines of the collar and thoracic 

 plate. The clouded white scales which surround the reniform spot, 

 and the white dots at the base of the fringe and on the nervules, are 

 also of service in its identification. 



Orthosia mirrascula nov. sp. 



Expanse 30 mm. Length of body 1 2 mm. 



?. Eyes naked, with lashes. Antenna? filiform. Thorax and 

 abdomen robust, the latter untufted. Basal, median, and subterminal 

 spaces of the ■ anterior wings, grayish-brown, the costal region with 

 more or less distinct, clear red shades and markings, particularly 

 around and between the ordinary spots. Half-line double, distinct. 

 Interior line simple, oblique; opposite the orbicular spot thickened, 

 forming a quadrangular black patch, bordering the spot; below the 

 submedian it joins a broad, black, oblique shade, connecting the 





