of Fossorial ILjmenoptera, 297 



Be m hex divers {pen n is. 



Female. Length 1(H lines. Head ferruginous ; thorax and 

 abdomen black, variegated Avith yellow ; the wings brown, 

 frith one third of fore wings at their apex hyaline ; the clypeus, 

 labrum, and mandibles yellow, the latter black at their apex ; 

 antenna; ferruginous ; a quadrate black spot on the vertex. 

 Thorax : the posterior margin of the prothorax, the tubercles, 

 tegulas, and legs ferruginous ; the coxaj, trochanters, and base 

 of the femora black ; a transverse curved line on the scutellum, 

 postscutellum, and metathorax, as well as its posterior angles, 

 yellow. Abdomen : the first segment has a large, irregular, 

 somewhat quadrate spot on each side, the second segment 

 a broad oblong yellow macula, which nearly meet in the 

 middle and are deeply incised at their inner margin ; the 

 third and fourth segments with large maculae that are sud- 

 denly narrowed and curve inwards and upwards, nearly 

 uniting in the centre of the segment ; the fifth segment with 

 a large oblong macula on each side, that nearly meet in 

 the centre of the segment ; the sixth ferruginous at the apex ; 

 beneath immaculate. 



Male. As large as the female ; wings hyaline ; head and 

 scape of the antennae yellow, with the flagellum ferruginous, 

 its four apical joints swollen and distorted. Thorax as in the 

 female. Abdomen black beneath and yellow above j the apical 

 margins of the first and three following segments margined 

 with black, the margins produced in the middle into a tri- 

 angular shape ; the first segment with a small semicircular 

 black spot, from which emanates a line, which unites with the 

 black margin ; the second segment with two small, oblique, 

 central black spots ; the third with two larger spots at its 

 basal margin ; the three apical segments margined with ferru- 

 ginous ; a small, acute, compressed spine on the second ventral 

 segment. 



HaB. Angola. 



Bembex severa. 

 Female. Length 8 lines. Black, smooth and shinins; ; 

 the thorax with yellow markings, those on the abdomen 

 white. Head : the face and clypeus covered with fine short 

 silvery pubescence, that on the vertex is long and griseous ; a 

 narrow yellow line behind the eyes. Thorax : the posterior 

 margin of the prothorax, the tubercles, tegulae, and a line 

 over them on the mesothorax, an ovate spot on each side of 

 the scutellum, two oblique spots on the postscutellum, which 

 are sometimes united, yellow ; occasionally two short yellow 

 lines on the mesothorax anteriorly, or two minute spots, both 



