190 Annals of the South African Museum. 



smooth, metasternal episterna narrow and very long ; inner spin- 

 of anterior tibiae bifid, but with a slight spine underneath, posterior 

 tibiae deeply tri-sulcate ; hind tarsi also tri-sulcate, fifth joint not 

 setulose underneath in the male, which has also a single setigerous 

 puncture on each side of the last abdominal segment. 



This species is allied to ^4. niyrinus, Boh., in which the inner spur 

 of the anterior tibia3 are also bifid, but it is larger and somewhat 

 more massive, and in the two male examples which I have seen the 

 intervals of the elytra are plainly more convex than in A. nigrinus, 

 where they are plane, and the curve of the humeral part is more 

 elongated in the last-named species. 



Length 11-12 mm. ; width 4^ 4-J- mm. 



Hab. Southern Ehodesia (Salisbury). Natal (Durban). 



ABACETUS VEXATOR, n. sp. 



Black, shiny, antennae black with the three basal joints piceous ; 

 frontal impressions deep, somewhat broad, the sulcus arcuate ; 

 prothorax ampliato-arcuate for two-thirds of the length, and 

 widest across the median part, narrowed in the third posterior 

 part, but not sinuate, although the sharp basal angle projects, 

 the outer margin is finely reflexed, the lateral sulcus is narrow, 

 but deep, and reaches close to the posterior pore, and is con- 

 tinued thence along the base so as to meet the basal sulcus 

 which is situated nearer to the outer margin than to the median 

 longitudinal part, the basal space between the two sulci bears. 

 a few nearly obliterated punctures, the sides of the posterior part 

 are not depressed ; elytra oblong, as broad slightly past the humeral 

 part as the prothorax at its widest point, the impunctate striae are 

 deep, the intervals convex, and the setigerous pore on the third 

 interval is median ; last abdominal segments with two setigerous 

 punctures (cT), metasternum and episterna faintly aciculate, meta- 

 sternal episterna longer than broad ; inner spur of anterior tibiae 

 thick, somewhat blunt and slightly cuspid on each side at the base ; 

 hind tarsi plurisulcate. 



Length 9 mm. ; width 4 mm. 



Hab. Southern Rhodesia (Upper Limpopo). A. W. Eriksson. 



ABACETUS EMERITUS, Pering., 

 Ann. S. Afr. Phil. Soc., 1898, p. 359. 



Black, shiny, palpi sub-rufescent ; the three basal antennal joints 

 and the tarsi piceous ; frontal impressions somewhat broad and 



