442 Annals of the South African Museum. 



pro-mesonotal suture is fairly clearly indicated. The transverse 

 impression of the mesonotura is shallow and the upper face of the 

 scutellar region has a small tubercle at each corner. Metanotum not 

 clearly defined. Dorsum of epinotum a little wider at the apex than 

 it is long, shallowly concave transversely ; epinotal teeth small, vertical, 

 acute, hardly as long as their basal width, considerably shorter than 

 the interval between their bases. Dorsal edge of 1st node thinner and 

 more deeply emarginate than in Prelli-redbankensis , otherwise similar ; 

 2nd segment almost twice as wide as long, the lateral angles placed in 

 front of the middle of the sides, acute, or sometimes produced into 

 fairly distinct teeth. 



£ . 2'5 mm. Brownish-yellow, the head and sides of thorax some- 

 what darker, the head more reddish than yellowish-brown. Pilosity 

 as in Prelli. Head very finely and longitudinally rugulose, the vertex 

 smooth and shining, the rest of the head only moderately shining, in 

 front striate between the eyes and frontal carinae. Mandibles longi- 

 tudinally striate and subopaque. Pronotum shining, smooth on the 

 disc, faintly rugulose elsewhere. Meso- and epinotum reticulate- 

 punctate and dull. Nodes and abdomen smooth and shining. Pos- 

 terior margin of the head straight (convex in Prelli), the posterior 

 angles widely rounded, but fairly distinct. The head is wider behind 

 than in front and as long as wide. Meso-epinotal suture and the 

 transverse impression of the mesonotum fairly deep. Dorsum of epi- 

 notum flat, twice as long as wide and as long as the declivity. 

 Epinotal teeth small and acute. Posterior-dorsal face of the 1st node 

 a trifle longer than wide ; 2nd node about as long as wide, the anterior 

 half convex, the posterior half subparallel-sided. 



9 . 7 mm. Piceous, head dark reddish-brown, mandibles and 

 antennae ferruginous, tarsi brownish-yellow, apices of the tibiae and 

 femora pale brown. Vertex of head longitudinally striate, the sides 

 longitudinally rugose, the spaces between the rugae reticulate. Meso- 

 notum and scutellum shining, very sparsely and finely punctured, the 

 mesonotum also faintly rugulose posteriorly ; metanotum, sides of 

 epinotum and the nodes coriaceous and dull, with a few rugae super- 

 imposed. Declivity of epinotum smooth and shining, the space 

 between the teeth feebly and transversely striate. Abdomen smooth 

 and shining, finely and sparsely punctured. Head subquadrate, 

 slightly narrower in front than behind, the posterior margin straight, 

 the posterior angles rounded. Mesonotum, seen from above, almost 

 circular, slightly wider than long, rounded in front, flat behind. 

 Dorsum of epinotum very oblique, forming a single plane with the 

 declivity. Epinotal teeth smaller than in the 1/ , their bases wide and 



