NATURAL SCIENCES OP PHILADELPHIA. 209 



same work as coming from New York, from the same person, it is 

 possible that the specimen above described came from the same 

 locality. The second species is apparently a Georaetrid, and called 

 Phal. Geom. exlenaria. It is barely possible that Linne intended 

 our common Plusia simplex by his description of Phalsena Omi- 

 cron. 



Scopelosoma devia, n. s. 



% . The new species resembles S. Morrisoni in that the primaries 

 are crossed by pale shade lines, but it differs from all the species 

 in their course. The color is dark olivaceous fuscous, darker 

 than S. Walkeri ; and the lines are accompanied by an olive shad- 

 ing. The median lines are even, and nearer together, especially 

 on the costa, than in the other species. The t. a. line is even, and 

 runs inwardly obliquely from the costa to internal margin. The 

 t. p. line is nearly straight, a little flexed, not roundedly exserted 

 opposite the cell. The concolorous reniform is annulate, upright, 

 pale ringed, not constricted, narrow, slightly luniform. The pale 

 subterminal line is preceded first by an olive shading, and secondly 

 b}' an even, distinct, pale shade, which is wanting in the other 

 species; hind wings dark fuscous; body parts concolorous. 

 Beneath the wings are a little paler, fuscous, subirrorate, with a 

 common blackish median shade line and discal marks. 



Expanse 32 mm. Habitat. St. Catherine's (Mr. George Norman, 

 No. 12). 



Although it is sufficiently apparent that the species of Scopelo- 

 soma are variable, and that we cannot rely on the ground-color 

 of the primaries for specific character, I believe we shall have to 

 discriminate three species at least of the group of vinulenta. I 

 am now inclined to reconsider my identification of sidus Guenee, 

 whose indefinite description is not of much use where we have to 

 descriminate between several species. 



I think it now more probable that Guenee has described vinu- 

 lenta as sidus., and that " sidus" Grote., will prove a form of S. 

 Walke?'i Grote, in which the primaries are stained of a light 

 reddish, and the spots are variable as in the deep-colored S. vinu- 

 lenta. S. Morrisoni varies in the tint of the primaries in a cor- 

 responding fashion. We should then have the following species : 



