192 Annals of the South African Museum. 



under side impunctate, episterna not narrow, and only slightly 

 longer than the anterior edge ; last abdominal segment with two 

 setigerous punctures in the male, four in the female ; posterior tibiae 

 strongly tri-sulcate ; hind and intermediate tarsi also pluri-sulcate, 

 fifth joint of hind ones not selutose. 



Length 10^ mm. ; width 4 mm. 



Hab. Southern Ehodesia (Umtali). A. Bodong. 



This species is not unlike A. lucid ulna, Boh., but the prothorax 

 is broader and the marginal sulcus not so deep. 



ABACETUS LAUTUS, n. sp. 



Black, very shiny, palpi rufescent, the three basal antennal joints 

 slightly piceous-red ; frontal impressions deep, plainly arcuate ; pro- 

 thorax longer than broad, arcuato-ampliate from the anterior angle 

 to two-thirds of the length, plainly narrowed thence and sinuated 

 above the sharp basal angle which projects slightly, the greatest 

 width is found at about one-third of the length, the outer margin is 

 narrowly reflexed, the supra-marginal sulcus is fairly wide, runs 

 from the anterior angle to the basal part, and continues alongside 

 of it as far as the long basal sulcus which, owing to the narrowing 

 of the posterior part, is set nearer to the margin than to the median 

 longitudinal line, the space between the two is impunctate ; elytra 

 oblong, with the shoulders hardly slanting and the humeral angle 

 sharp, narrower at the base than the widest point of the prothorax, 

 but equally wide slightly past the median part, the impunctate 

 striae are deep and the intervals plainly tectiform ; metathoracic 

 episterna somewhat short, only slightly longer than the anterior 

 part ; last abdominal segment with two setigerous pores (3}', hind 

 tibiae and tarsi pluri-sulcate. 



Length 10 mm. ; width 3f mm. 



This species is easily recognised by the elongated, sub-cordiform 

 shape of the prothorax. 



Southern Ehodesia (Umtali). A. Bodong. 



ABACETUS DILUCIDUS, n. sp. 



Black, shiny ; palpi, legs, and the basal antennal joints rufescent 

 or red, the other antennal joints slightly infuscate, outer margin of 

 prothorax rufescent; frontal impressions slightly oblique; prothorax 

 as broad as long, regularly but not broadly arcuate laterally, its 

 greatest width is slightly in front of the median part, the outer 



