264 Miss I. B. J. Sollas on a new 



cell much less produced outwards tlian in the former genus, 

 but decidedly more than in the hitter. Vein 2 from a little 

 beyond the middle of the cell, 3 from midway between 2 and 

 the lower angle, 4 from the angle, 5 from just above the 

 angle and so forming a short right angle with the disco- 

 cellular before receding basewards, 6 from below the upper 

 angle; 7, 8, and 9 stalked, 7 and 8 from about midway 

 between the angle and the termen, 9 from nearer the cell than 

 vein 8; 10 absent; 11 long, from tiie cell reaching nearly to 

 the apex : secondaries with 1 and 1 a stalked for nearly half 

 the length of 1 ; lower part of cell and veins 2, 3, 4, 5 as in 

 MarshuUiana ; vein 6 from well below the upper angle, 7 

 from the U])per angle, 8 with a bar to the cell as shown in 

 the figure of the neuration of MetarheJa umtalianay Auriv.*, 



Type, Catavhelana bassa, B-B. 



This genus will come after MarshalUayia, Auriv., but 

 before Catarbelay Auriv, 



Catarbelana bassa, sp. n. 



(J. Head, thorax, abdomen, and primaries uniform pale 

 brown. Primaries with fine dark reticulations all over the 

 wing, but with two prominent dark lines, viz. the jjostmedian 

 line and the subterminal, the former slightly excurved for 

 upper portion, but sharply incurved on the fold, the sub- 

 terminal line being nearly erect for tiie upper part to 

 vein 3, where it is anglgd outwards into the tornus about 

 vein 2 ; a dark basal dash on the inner margin to over a half, 

 rising in a short basal tutt : secondaries uniformly darker 

 brown than the primaries. 



Expanse 34 mm. 



Hah. N. Nigeria, Lokoja District. 



Type in my collection. 



XXXI. — A new Freshwater Polyzoon from S. Africa. 



By IgERNA B. J. ^SOLLAS. 



A COLLECTION o£ freshwater organisms from the Valkenberg 

 Vlei, near Cape Town, was brought to me in October 1907 

 by Miss Stephens, who tells me that her collection is the first 

 which has been made in that Vlei. Thanks to her care in 

 daily supplying the organisms with fresh water during the 



* Ent. Tids. 1901, p. 127. 



