224 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.40. 



Genus GONIOTERMA Walsingham. 

 Gonioterma Walsingham, Proc. Zool. Soc. Lond., 1897, p. 101. 



Type. — Goniterma burmanniana Cramer. 



This is one of the few genera, erected in this family, which seems 

 tenable, and it undoubtedly represents a natural group of Stenomid 

 moths, characterized by the square forewings and the black costal 

 spots; but it should be observed that even this group is none too 

 sharply defined in nature and that many species come uncomfortably 

 close to it in appearance, without having vein 8 of the forewings to 

 termen below apex, which character I consider the one essential in the 

 differentiation from Stenoma Zeller. Such species would fall in Wal- 

 singham's genus Anadasmus, which I can not maintain as distinct 

 from Stenoma Zeller, on account of the perfecly gradual transition 

 between the extremes of wingform. 



GONIOTERMA ROSA, new species. 

 Plate 9, fig. 28. 



Labial palpi rosy, shaded with black exteriorly. Face and head 

 light ocherous. Thorax rosy ocherous. Forewings light rosy ocher- 

 ous with two conspicuous dark brown, costal spots, one just beyond 

 the middle of the wing, one at apical fifth; from basal third of costa 

 runs a thin light brown straight line obliquely across the wing to the 

 middle of dorsum; on the end of the cell is a very faint, transverse 

 line of dark brown scales; along the terminal edge is a series of short 

 black marginal streaks; cilia dark reddish fuscous. Hindwings light 

 reddish yellow; cilia light straw-colored. Abdomen and legs light 

 ocherous. 



Alar expanse. — 23 mm. 



Habitat. — St. Jean, Maroni River, French Guiana. Wm. Schaus, 

 collector. 



Type.— Cat. No. 13590, U.S.N.M. 



Of the general shape and ornamentation of Gonioterma burman- 

 niana Cramer and Gonioterma isabella Felder; smaller than both 

 these species and easily recognized by its quite different color. 



GONIOTERMA ANNA, new species. 

 Plate 9, fig. 27. 



Labial palpi white, second joint shaded exteriorly with dark brown. 

 Face and head ocherous white. Forewings very light rosy drab with 

 three triangular, equidistant, blackish brown, costal spots, the two 

 outer ones large and very prominent, the basal one at basal third of 

 costa smaller; on the end of the cell is a small transverse dark brown 

 spot; from the tip of the outer costal spot runs an outwardly curved 



