136 Annals of the South African Museum. 



genital armature are roundly truncate at the apex, the external 

 margins in their lower half are slightly concave. The volsellae are 

 large and extend beyond the stipites. The internal paramera (sagittae) 

 form two wide lamellae as in diadema, from which and from attenua- 

 tus it may be distinguished by the genital armature. (Type Kili- 

 mandjaro.) Variety, Transvaal." 



I have combined the two descriptions, since the variety differs 

 from the type practically only in the larger head and mandibles, 

 with the former more pilose, and in the stipites, which in the type 

 are smaller and straight on the external margins. 



Teibe ECITINI, Forel. 



With only one genus in the South African region. 



Genus AENICTUS, Shuckard. 

 Ann. Nat. Hist., vol. 5, p. 266, 1840. Smith, Journal Linn. Soc, 

 Lond., vol. 2, p. 79 {Typhlatta), 1857. E. Andre, 2me Suppl. 

 aux Eourmis, p. 2, 1885. Emery, Bull. Soc. Ent. Ital., vol. 33, 

 p. 43, 1901. 



Characters. 



$ Monomorphic, or varying only in size (except E. mariae, 

 Em.), and that within narrow limits. Clypeus in the form of a 

 narrow band above the mouth. Frontal carinae vertical, close 

 together, and curved round the antennal sockets. Mandibles 

 dentate. Eyes absent. Antennae 10-jointed, the terminal joint 

 not noticeably thicker than the rest. Thoracic sutures feeble, or 

 obsolete. Epinotum unarmed. Tibiae with one rudimentary calcar. 

 Abdomen short, more or less oval. 



? . (Known only in one species, abeillei, Andre, from North 

 Africa.) Clypeus, frontal carinae and antennae as in the $ . 

 Eyes absent. Mandibles narrow, edentate and acuminate. Thoracic 

 sutures absent. Petiole 1-jointed and nodiform. First abdominal 

 segment campaniform, not constricted from the following segment 

 so as to form the 2nd joint of a 2-jointed petiole as in the $ . 

 Abdomen elongate, cylindrical and pointed at the apex. Hypo- 

 pygium projecting slightly beyond the pygidium. Middle and hind 

 tibiae without calcaria. 



$ . Clypeus very short, insinuated between the frontal carinae . 

 The latter short. Mandibles acuminate and edentate. Eyes and 

 ocelli well developed, sometimes very large. Antennae 13-jointed, 

 scape thick, flagellum thinning towards the apex. Mesonotum 



