3 SEP 121916 V 



A Monograph of the Formiciclae of South Africa. ^^oPnsil MliS e 



entirely hidden by the mesonotum. The latter is similar to that 

 of the ? , but less flattened and with the parapsidal sutures more 

 distinct. The scutellum is narrower and more convex posteriorly, 

 and raised higher above the level of the epinotum. The latter is 

 very smooth and shining, the dorsum wider than long, and merging 

 gradually into the declivity. Genital armature exserted. Wings as 

 in the ? . 



The above description differs in some respects from that given by 

 Santschi, which was drawn up from a single specimen in a damaged 

 condition. There can be no doubt as to the correct identity of the 

 numerous specimens of $ $ on which the above description is based, 

 since they were taken in the same nest with the $ and $ . 



S. Rhodesia ; fairly common. Kalahari. (Schultze.) Durban. 

 (Marley.) 



This is a timid and quick ant, living on trees and nesting under 

 the bark. When disturbed, it emits from the anal glands a white 

 sticky fluid, which hardens on exposure to the air. 



(S.A.M., E.M., G.A. colls.) 



Tribe PROCERATIINL* 



Genus DISCOTHYREA, Roger. 



Berl. Ent. Zeitschr., vol. 7, p. 176, 1863. Emery, Ann. Soc. Ent. 

 Belg., vol. 45, p. 51, 1901. 



Characters. 



$ . Antennae 9-jointed, the scape strongly incrassate apically, the 

 flagellum clavate, the last joint nearly as long as the remaining joints 

 taken together. Mandibles edentate. Clypeus fused with the frontal 

 carinae and the cheeks, forming a semi-circular disc in front of the 

 antennae and projecting over the mandibles. On this disc, the frontal 

 carinae are fused together, to form a single lamella at the level of the 

 antennal sockets, but more or less free behind that point. Eyes small 

 or very small. Thoracic sutures absent. The declivity of the epinotum 

 marginate and excavated. Petiole bell-shaped or thickly squamiform ; 

 1st segment of abdomen not very large, separated from the 2nd by a 

 feeble constriction. Abdomen anteflexed, the apical segments curved 

 downwards and forwards under the 2nd segment as in Proceratium. 



$ . Winged. Eyes and ocelli well developed. Pronotum exposed 

 above only at the sides. Otherwise like the § . 



* Page 33. 

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