684 Annals of the South African Museum. 



(18) 17. 21, Head yellowish brick-red; $, anterior half of the head more or less 



red ; pubescence of the abdomen in 2J. and ^ not dense, not entirely 



hiding the sculpture and colour of the integument 



cinctellus, var. ustithorax, Forel. 

 (17) 18. Head black or brown. 



(22) 19. Junction of the dorsum and declivity of the epinotum arcuate. 

 (21) 20. Large species, 2J., 9-10 mm. long'; the scapes extend beyond the hind 



margin of the head by one-sixth of their length 



rufoglaucus, race zulu, Emery. 

 (20) 21. Smaller species, 21, 7 mm. long; pubescence of the abdomen brilliant 



golden .... rufoglaucus, race cosrnicus, Smith. 



(19) 22. Junction of the two faces of the ejjinotuin obtusely angular 



rufoglaucus, race cinctellus, Gerst. 



C. Petersi, Emery. (Plate IX, figs. 136-136d). 



Ann. Soc. Ent, France, vol. 63, p. 50, « minor, 1895. 



2J., (hitherto undescribed ?), 13-2-15 mm. Black, dull, the legs 

 slightly shining. Plead and thorax very closely, finely and sharply 

 reticulate-punctate, the epinotum irregularly so or shagreened, the 

 abdomen transversely and fairly strongly rugulose. Pubescence 

 greyish white, decumbent, fairly long and abundant on the sides of 

 the thorax, the coxae and abdomen, shorter and much less abundant 

 elsewhere. Erect pilosity brownish, sparse on the vertex and thorax, 

 a little more abundant on the apical margins of the abdominal segments. 

 Legs, especially the tibiae and tarsi, with a very dense, black and 

 almost decumbent pilosity, composed of thick bristly hairs. Cheeks 

 not pilose. Tibiae strongly compressed, not setose below. Head, 

 including the closed mandibles, subtriangular, the posterior angles 

 rounded, the posterior margin moderately concave, the sides convex, 

 a little longer than wide (excluding the mandibles). Clypeus carinate, 

 lobed, the lobe rectangular at the corners and straight in front ; the 

 median area of the clypeus longer than wide. Mandibles 7-dentate, 

 fairly dull, finely reticulate, striate on the anterior third, with numerous 

 shallow punctures. Scapes strongly flattened, extending beyond the 

 hind margin by as much as their apical width. Eyes rather small and 

 nearly flat, placed at the middle of the sides. Frontal area triangular, 

 distinct. Frontal carinae sinuate, a little longer than their greatest 

 distance apart. Thorax fairly convex transversely, almost straight 

 longitudinally from the pro-mesonotal suture to the brow of the 

 declivity. All the thoracic sutures well defined. Mesonotum as 

 long as wide in front. Metanotum distinct, twice as wide as long. 

 Dorsum of epinotum fairly broad, merging by a rapid curve into the 



