442 Annals of the South African Museum. 



flavescent; antennae fuscous with the two basal joints and the 

 pedicel flavescent. 



This species would at first sight appear to be a varietal form of 

 P. capicola, with the spots or bands on the wings less deeply 

 infuscate and a little more irregular, but the genital clasps of the 

 ^ are very different in both species, although built on the same 

 pattern. In the fore wing all the nervulcs of the intercostal space 

 are transversely spotted at the base along the sub-costal nervule, the 

 intervening parts of the latter being white, the pterostigma is white 

 flavescent as in P. capicola; the sub-basal spot is wanting; the first 

 band is patch-like and very narrow, the second band is also hooked 

 inwardly, the apical one is as in capicola, but above it are numerous 

 specks, and the hind border has two rows of minute specks from 

 the first anterior third to the apex; in the hind wings the first 

 transverse patch is very narrowed, somewhat ill-defined and not 

 hooked; the second is divided into three broadly disconnected 

 patches, the apical one is made of numerous specks with a sub- 

 horizontal, more distinct patch, and towards the apex there are 

 a few specks along the hind border. The clasping organ of the ^ 

 is only slightly diverging at the base and without any inner lobe 

 there, instead of being sub-orbicular ; it is much less bent downwards 

 at the base, and is also proportionately longer. The female does 

 not differ from the male, but the wings are longer. 



Length of body 25 mm. ; clasps 13 mm. ; fore wings expanded 

 75-89 mm., hind 72-81 mm. 



Hab. Transvaal (Potchefstroom), Harold Fry ; Bechuanaland. 



Gen. ACANTHACLISIS, Eamb. 



ACANTHACLISIS MASHUNENSIS, n. Sp. 



Drab colour mixed with ashy grey, clothed on the head, thorax 

 and legs with dense black and greyish-white hairs, with the grey 

 ones predominating ; antennae with the joints fuscous and banded 

 with white, the three basal joints flavous ; epistome bright yellow, 

 palpi also yellow but the ultimate joints are infuscate at apex, frons 

 with a thick bunch of greyish hairs, the vertex infuscate ; pronotum 

 sub-flavescent, with a median truncated cone-shaped fuscous 

 band, and a narrow one laterally ; meso- and metanotum indistinctly 

 banded ; abdomen wanting ; wings long, hyaline, with the apical 

 lower margin slightly sinuate at apex, the costal area with one row 

 of cells which is, however, duplicated at two-thirds of the length ; 

 space between the two median, parallel, nervures lacteous ; at their 



