480 Annals of the South African Museum. 



base. Lower margin of the head in front bidentate. Clypeus with a 

 low swelling in the middle, but not carinate, emarginate in the middle 

 in front. Head as wide as long, wider behind, the sides convex 

 posteriorly (widest behind the eyes), deeply excised behind, the 

 occipital groove strong and merging into the frontal sulcus, not 

 depressed behind. The scrobe, which receives the whole of the scape, 

 is reticulate-punctate, not deep, margined above by the frontal carina 

 and below by a strong longitudinal ruga ; there is also a shallow 

 impression to receive the end of the flagellum. Frontal carinae 

 prolonged as far as the end of the scapes. Eyes convex, placed at the 

 anterior third. The scape extends back as far as the posterior third 

 of the head. All the joints of the flagellum longer than wide. Head 

 1*7 mm. long and equally wide. Pronotum rounded above, with two 

 very obtuse and indistinct tubercles. Mesonotum with a very deep 

 transverse impression, and a strong, thick and transverse torus. 

 Dorsum of epinotum horizontal, somewhat longer than the declivity, 

 excavated in the middle posteriorly. Epinotal spines long, thin, as 

 long as the interval between them, directed more upwards than 

 backwards. First node of petiole almost cuneiform, with a fairly long 

 peduncle in ft-ont, narrow, very feebly emarginate above. Second 

 node almost three times wider than the 1st, wider than long, very 

 angularly dilated at each side (rhomboid). Fairly shining. Head 

 coarsely and regularly rugose longitudinally, lightly reticulate in 

 between, the posterior part of the head merely reticulate. Thorax 

 coarsely and irregularly rugose transversely, reticulate between the 

 rugae. Petiole more closely reticulate, nearly dull, with a few 

 transverse rugae. First segment of abdomen finely and lightly reti- 

 culate, the rest nearly smooth. A fairly short, sparse and yellowish 

 pilosity on the body, the legs and antennae with decumbent hairs 

 only. Brownish yellow-red ; the legs paler. Abdomen in front of a 

 bright brownish-yellow, entirely or partly brown behind. 



" $. 2"3-2 - 5 mm. The whole of the masticatory margin of the 

 mandibles dentate. Clypeus without emargination. Head longer 

 than wide, convex behind the eyes, but the sides converge gradually up 

 to the articulation, without a distinct hind margin and without a neck. 

 Eyes strongly convex, placed in the middle of the sides. The scape 

 extends beyond the articulation of the head by quite one-third of its 

 length. No trace of a scrobe. Mesonotum transversely impressed. 

 Dorsum of epinotum much longer than wide and longer than the 

 declivity, with two fairly long spines which are almost as long as the 

 interval between them. First node low, cuneiform, with a long 

 peduncle. Second node quite three times wider than the first, very 



