482 Annals of the South African Museum. 



The rugae on the front of the head are coarser and wider apart than 

 in cubancjensis. The thorax is dull, and so also are the petiole and 

 the base of the abdomen, which are simple reticulate-punctate, whereas 

 the thorax is indistinctly rugose as well. Dark brown, the legs 

 paler, the tarsi and flagellum rusty red. Otherwise identical with 

 var. cubangensis of sjjecidifera, with the same large node. 



" $. 3*9— 4 mm. Larger than speculifera-crassinoda, the hind margin 

 of the head rather indistinct but nevertheless defined, wanting in 

 speculifera. The antennae are a little longer, and also the joints of 

 the flagellum. The same differences present in the 1/ also occur in 

 the mesonotum of the £ , which has a distinct tubercle in front, which 

 is absent in sjjeculifera. Entirely dull except the posterior half of the 

 abdomen and the legs, which are shining. The front of the head has 

 some fairly coarse and longitudinal rugae. The pilosity is oblique and 

 more abundant than in speculifera. Entirely black, the legs, scapes 

 and mandibles brown. Tarsi and club of the antennae rusty red. 



" Sankisia, Katanga (Dr. Bequaert) ; perhaps simply a race of 

 speculifera." Durban (Traegaordh), teste Santschi. 



Tribe CKEMASTOGASTEINI, Forel. 



Including only the following genus. 



Genus CKEMASTOGASTEE, Lund. 

 Ann. Sc. Nat., vol. 23, p. 132, 1831. 



Characters. 



^ . Antennae 10- or 11- jointed (rarely 9-jointed, C. edentula 

 Santschi), the club formed of two or three joints ; maxillary palpi 5- 

 jointed ; labial palpi 3-jointed. Thorax usually widest in front, 

 constricted at the meso-epinotal suture. The latter deep and well 

 defined, the pro-mesonotal suture usually more or less obliterated at 

 least in the middle. Epinotum armed with two teeth or spines, rarely 

 unarmed. First segment of petiole squamose or cuneiform and 

 decumbent, articulating with the epinotum by a very short and narrow 

 piece, or almost sessile in f ront ; 2nd segment thick, with a short 

 peduncle in front, nodose behind, the node frequently grooved in the 

 middle lengthwise so that the node appears to be made up of two 

 hemisperical lobes or discs. Petiole articulating with the dorsal 

 surface of the abdomen. The latter subcorclate, the basal margin 

 straight or subtruncate. 



