56 Descriptive Catalogue [1897. 



broader than the prothorax and much longer, parallel laterally, quad- 

 rate at the shoulders and subdentate, and having three foveae at the 

 base, the external one of which is much smaller than the others and 

 now and then more or less sulciform ; abdomen longer than the 

 elytra ; metasternum convex, sometimes obsoletely impressed ; tibiae 

 slightly thickened externally behind the middle. 



Male : Third dorsal abdominal segment nearly twice as large as the 

 preceding one, fourth a little smaller than the third, fourth ventral 

 one obtusely angular in the middle, totally and deeply impressed, 

 fifth much smaller, very angular in the middle, median part of the 

 sixth inconspicuous, but with an arcuate sulcus on the right side, 

 dentate at apex, left side wider, much dentate and incised, seventh 

 with an arcuate longitudinal ridge ; intermediate and posterior tro- 

 chanters slightly angular. 



Female : Third and fourth dorsal segments only a little longer 

 than the preceding ones, the fifth ventral one one-quarter shorter, 

 sixth large, triangular, and sometimes slightly impressed. Length 

 1-10-1 -30 mm. 



In my original description I mistook the female for the male. 



Hah. Cape Colony (Stellenbosch). 



ASYMOPLECTUS IRREGULARIS, 



Plate XVI., fig. 23. 



Eather convex, chestnut brown, with a moderately soft grey 

 pubescence ; head small and short ; antennse thicker, club larger 

 and the eleventh joint with a longer point ; prothorax longer than 

 broad, more attenuate in the anterior than in the posterior part, 

 and having a nearly straight transverse sulcus much extended 

 behind in the median part ; elytra having the sides much rounded 

 and an external fovea briefly sulciform ; first dorsal abdominal seg- 

 ment impressed in the middle at base ; tibiae little thickened. 



Male : Third dorsal segment nearly three times the size of the pre- 

 ceding one, fourth smaller ; fourth ventral one slightly sinuate in 

 the middle and minutely impressed at apex, fifth nearly straight, 

 sixth very small in the median part and with a round incision, right 

 side wide, truncate at apex and strongly bidentate, left side deeply 

 incised at apex, seventh much rounded at apex and having a slightly 

 arcuate longitudinal carina, and near it a slight depression ; meta- 

 sternum hardly impressed. 



Female : Third dorsal segment not twice as large as the pre- 

 ceding one, fifth ventral segment shorter by one-half than the fourth, 

 sixth large, subtriangular, rounded at apex and slightly impressed. 

 Length 1-20 mm. 



