1910.] FROM NORTHERN RHODESIA. 13 



description of it. The males vary a good deal especially in the 

 black suffusion over the wings. 



The male genitalia, though of the same character as those of 

 anem.osa, are much smaller and more slender. 



Upperside. — Primaries. The entire base, including the proximal 

 half of the cell, black. The costa narrowly black. A moderately 

 broad black apex narrowing rapidly as it approaches the posterior 

 angle. A narrow black discocellular streak. A little beyond end 

 of cell a black band of confluent spots extending from costa to 

 second submedian. Sometimes a separate spot in area 3. A well- 

 defined spot in 2 immediately below extremity of cell. A small 

 paired discal spot (sometimes two pairs) in 1. Ground-colour 

 bright cerise, sometimes becoming orange-ochre toward apex and 

 outer margin. 



Secondaries. The base broadly black, but more or less covered 

 with scattered whitish hairs, a broad black outer margin inwardly 

 somewhat serrated ; ground-colour as fore wing, sometimes a 

 trace of four or five small black spots around extremity of cell. 



Underside. — Primaries as upperside, but black of apex and 

 outer margin narrower ; a small greenish-white spot at base of 

 costa; apex flushed internally with whitish and marked with 

 ochreous submarginal internervular streaks. Ground-colour paler. 



Secondaries. Black base encloses five to seven small greenish - 

 white spots ; three such spots along narrowly black inner margin ; 

 a streak of same colour follows outline of anal angle ; black outer 

 margin encloses seven small greenish-white spots (paired in 1 c) ; 

 discal area pinkish-white outlined along its basal inner and outer 

 marginal edges with somewhat arrow-shaped internervular spots 

 of brick-red colour. 



Fringe of both wings black with internervular patches of white. 



Palpi ochreous ; thorax black ; abdomen dorsally, black except 

 last three segments which are ochreous ; laterally, ochreous ; 

 ventrally, narrowly black enclosing some whitish spots. 



Length of primary 34 mm. 



The female, already described by Eogenhofer, differs chiefly in 

 reduction of the black basal area which, in secondaries at least, is 

 nearly absent, and in the ochreous, not cerise, ground-colour 

 of primaries. The female abdomen is deep ochreous with laterally 

 placed white spots and is nowhere black. 



Acrjea egina Cram. 



I took this insect sparingly on the upper Kafue river in 

 October and on the Lualaba river in April and May, but found 

 it common in the Lake Bangweolo district in June and July, 

 especially on the islands in that lake. It also occurred in the 

 Kalungwisi and Lofu river valleys in August and September. 

 These specimens exhibit characters somewhat intermediate between 

 the type form and areca Mab. The majority have more or less 

 well-developed scarlet internervular streaks in the apical and 

 outer- marginal portions of the primaries. I found this insect. 



