514 Annals of the South African Museum. 



enclose, the spaces slightly shining ; on the epinotum the reticulation 

 is less sharp, the declivity smooth and shining. Petiole and abdomen 

 shining, microscopically reticulate or alutaceous. Legs fairly shining. 

 Head globose, as wide as long, the sides very convex, the posterior 

 margin straight. Scapes not reaching the posterior margin of the 

 head, falling short of the same by as much as their apical width ; 3rd 

 joint of flagellum a trifle wider than long, 4th and 5th at least 

 one-third longer than wide, the club 3- jointed. Anterior margin 

 of clypeus straight. Posterior angles of pronotum submarginate ; pro- 

 mesonotal sut are obsolete. Mesonotum marginate at the sides, 

 strongly so on the declivous posterior part, which is oblique and about 

 as long as the rest of the mesonotum. The median tubercle fairly 

 prominent and subcarinate. Meso-ejDinotal suture deep. Dorsum of 

 epinotum convex lengthwise, widened apically. The spines acute, 

 divergent, oblique, half as long as the interval between their bases. 

 The declivity of the epinotum longer than its dorsum. First segment 

 of petiole trapezoidal, the anterior corners widely rounded, the upper 



Fig. 40a. — C. misella, n. sp. 



face concave transversely, as long as wide ; 2nd node divided into 

 two discs by a complete median groove. The 1st segment of the 

 petiole bears at its base below a sharp, triangular tooth pointing 

 downwards. 



Bulawayo. In hollow stems of Acacia horrida. (S.A.M., E.M., 

 Gr.A. colls. ; type in my collection.) 



This species is allied to capensis in the structure of the antennae, 

 but differs from it and all our other species by the sculpture of the 

 thorax, which consists of a remai-kably sharply defined and raised 

 reticulation, the spaces between being smooth and flat. These 

 specimens had previously been named by Dr. Forel as gallicola, race 

 Sjoestedti, Mayr — quite a different insect, having the 3rd-5th joints 

 of the flagellum wider than long, the sides of the mesonotum not 

 marginate, and a different sculpture. 



C. opaciceps, Mayr. 



Ann. K.K.N.H. Mus. Wien, vol. 16, p. 12, § , 1901. 



" $ . 3 '6-4*2 mm. Dull, clypeus and legs more or less shining, 

 abdomen nitidulous ; dark rusty red, the abdomen brown. The 



