of Fossorud IJifmcnopieva. 297 



Bemhex dlmrsipe^i nis. 



Female. Lengtli lOi lines. Head ferruginous ; tliorax and 

 abdomen black, variegated with yellow ; the wings brown, 

 with one third of fore wings at their apex hyaline ; tlie clypeus, 

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

 antennaj ferruginous ; a quadrate black spot on the vertex. 

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

 tegula?, and legs ferruginous ; the coxa?, 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 raaculoe 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 antennaj yellow, with the flagellum ferruginous, 

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

 female. Abdomen black beneath and yellow above ; 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 Avhich emanates a line, which unites with the 

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

 central black spots ; the third witli 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. 



IIol). Angola. 



Bemlex severa. 

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

 the tliorax Avith yellow markings, those on the abdomen 

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

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

 narrow yellow line behind the eyes. Thorax : the ])osterior 

 margin of the prothorax, the tubercles, tegul;\?, 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 



