254 Annals of the South African Museum. 



differences between vidua, junodi, arnoldi, and silvestri is too variable, 

 even in examples taken from the same nest, to be considered reliable. 

 I am therefore inclined to believe that arnoldi is only a variety of 

 vidua; but in the absence of the $ $ and g <$ of the former, the 

 question cannot be definitely decided. 



Bulawayo. Found under the soil in small numbers on a single 

 occasion. (S.A.M., KM., G-.A. colls.) 



Genus ANELEUS, Emery. 

 Term. Fiizetek, vol. 23, 1900. (Pheidologeton, Mayr, pars.) 



Characters* 



1/. Antennae 11-jointed. Head very large, elongate, longer than 

 wide, more or less abruptly truncate behind. Mandibles triangular, 

 with 5 or more distinct but blunt teeth. Eyes very small or absent. 



^ . Antennae 11-jointed ; the club distinct and composed of the 

 last two joints. Eyes very small. Mandibles elongate triangular, 

 with 5 or more acute teeth. Clypeus usually more or less distinctly 

 bicarinate. Pro-mesonotal suture absent ; meso-epinotal suture 

 distinct. Epinotum bidentate or unarmed. Tibiae and femora more 

 or less swollen in the apical half. 



A. perpusillum, Emery. 



{Pheidologeton) Ann. Soc. Ent. France, vol. 63, p. 26, % , $ , 1895. 



" 1/. 2-2 - 5 mm. Reddish yellow, head rufous, shining, very 

 smooth, with sparse piligerous punctures ; meso- and metapleura 

 closely punctured and dull. Head elongate, sub-parallel, widely 

 emarginate behind, and with a transverse crest or thin carina, in- 

 terrupted in the middle, in front of the occipital margin. Cheeks 

 and front of the head striate ; frontal carinae short. Clypeus flat or 

 nearly so ; widely emarginate in front. Eyes very small. Mandibles 

 sparsely punctured, shining, striate at the base outwardly, quinque- 

 dentate. Antennae short, the scape hardly exceeding half the length 

 of the head. Thorax with the meso-epinotal suture deeply impressed, 

 the pro-mesonotal suture obsolete, pro-mesonotal disc convex, scuti- 

 form, obtusely margiuate in front, narrow behind. Epinotum armed 

 with an acute tooth on each side. First node of petiole small, squami- 



* These characters are based on the species described below and politus 

 diabolus and silvestrii Santschi. I have not been able to see a copy of Emery's 

 paper. Pheidologeton hostilis, Smith, is unknown to me, but owing to its 12- 

 jointed antennae cannot belong to this genus. 



