1920] Holland, Lepidoptern of the Congo 315 



is a dark spot at the end of the cell, coalescing with the medifni line, which is irregular, 

 festooned, looped inwardly at the end of the cell and on vein 1. The postmedian line 

 is regularly crenulate, running from near the upper angle of the wing to the inner 

 margin, which it reaches four-fifths of the distance from the base. It is succeeded 

 outwardly by a submarginal fine crenulate line which follows the curvature of the 

 hind wing, enclosing between its crenulations which occur on the veins a series of paler 

 spaces, which are outwardly bordered by the fine marginal line. The fringes of the 

 hind wing are uniformly whitish. On the under side the ground-color of the wings is 

 l)ale yellowish white; the apex of the fore wing is narrowly pure white. There is a 

 dark triangular shade at the base of the fore wing from the subcostal to vein 1; the 

 median band is black, much broader and more sharply defined than on the upper side; 

 the postmedian band is also broad and black, and coalesces with a similar broad black 

 submarginal band at vein 5, leaving between them a pale yellow elongated spot run- 

 ning from the costa as far as vein 5. The outer dark band touches the outer margin 

 of the wing opposite the end of the cell. The hind wing on the lower side is colored 

 like the fore wing; there is a somewhat large, diffuse subcircular dark spot in the cell 

 about its middle. The wing is crossed at the middle by a broad dark median line 

 running from the middle of the costa to the inner margin at the anal angle, and slightly 

 angulated opposite the end of the cell; the outer margin is broadly black; fringes 

 white. Expanse, 24 mm. 



At the risk of adding to the synonymy I have described this species 

 as new, after long search having failed to recognize it in any description 

 which is before me. I am not quite certain of the generic reference, but 

 the insect, in spite of its small size, seems to belong structurally better in 

 the genus Pseudoterpna, as defined by Hampson, than in any other. 

 The type is in The American Museum of Natural History. There is no 

 indication of loeahty on the label. A paratype is in the Holland Collection 

 from the valley of the Ogove River. In the paratype the basal area of the 

 fore wing on the under side is much darker than in the type. 



In addition to the species of Geometridge which have been herein- 

 before enumerated and described, there are a few ragged and imperfect 

 specimens which are too poor to determine and which I have been 

 unable to locate. 



Saturniidae 

 Philgsamia Grote 

 (673) 1. Philosamia albida (Druce) 



Attacus albidus Druce, 1886, Proc. Zool. Soc. London, p. 409, PI. xxxvii. 



Two rather badly defaced male specimens, one taken at Medje, 

 April 1910, the other labelled "Faradje, 1912." 



[Note. — Some confusion has existed as to the closely allied species, Philommia 

 plwtzi VXcciz, and I take the present occasion to point out that Maassen and Weyding 

 in Part V, of their Beitr. Schmett., 1885, text, were in error in setting up P. getula as 



