94 Annals of the South African Museum. 



duced so much in the middle. Mandibles long, longer than the head, 

 shining, sparsely punctured, the apical portion a little wider than the 

 rest, and concavely excised so as to form a distinct tooth at the apex. 

 Antennae long, reaching back as far as the base of the 2nd abdo- 

 minal segment, the scape reaching back as far as the posterior 

 margin of the mesonotum ; 2nd joint of the flagellum nearly twice 

 as long as the 1st, all the joints cylindrical and much longer than 

 wide. Thorax similar to that of Stuhlmanni, but the pronotum is 

 smooth, and the epinotum more strongly strigose. The rest of the 

 characters similar to those of Stuhlmanni. In both these species 

 the node of the petiole seen from the side is approximately 

 quadrant-shaped, the curvature being anterior and dorsal. 



Bulawayo. 



This species is crepuscular or nocturnal, and preys on termites. 

 I have never seen it about during daylight. 



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



L. Ferbakii, Forel. 

 Deutsch. Ent. Zeitschr. Beiheft, p. 209, $ , 1913. 



$ . 4-7 mm. Brownish black, mandibles, clypeus, antennae, 

 legs and apex of abdomen ochreous red. Very similar to Lobopelta 

 nitida and castanea, but owing to the structure of the mandibles, 

 this species is a true Leptogenys, s. str. Legs and body covered with 

 short, yellow, semi-erect hairs, longer on the petiole and abdomen. 

 Smooth and shining. Head very finely and somewhat sparsely 

 punctured. Thorax with large and shallow irregular punctures ; at 

 the sides and on the node these punctures are very elongated, almost 

 forming short grooves. The declivity of the epinotum strongly and 

 transversely striate. 



Head longer than wide, a little wider in front than behind, the 

 sides and posterior margin moderately convex. Clypeus with a 

 sharp median carina, which, seen from the side, projects at the apex 

 distinctly beyond the level of the mouth. Mandibles smooth, shin- 

 ing, sparsely punctured, shorter than the head, curved feebly from 

 the base to the apex, a little broader near the apex, with a very short 

 but distinct masticatory margin. Eyes moderately large, situated 

 just in front of the middle of the sides of the head. Scape not ex- 

 tending much beyond the occipital margin, about two-thirds as long 

 as the flagellum ; 7th-9th joints as wide as long, the rest longer 

 than wide, 1st joint as long as the 2nd. 



Pronotum convex in front and above, wider than the rest of the 



