200 SJOSTEDTS KILIMANDJARO-MERU EXPEDITION. 8: 7. 



towards the apex (which is bluntly rounded) so that the black space separating the 

 2 spots is wider at the base than at the apex; the 3rd segment has a mark on the 

 sides, wider than long, of white pubescence, extending from the base to the apex; the 

 4th has a smaller square spot of white pubescense on the outer edge; the basal half of 

 the pygidium is covered with long white hair; the ventral segments have wide apical 

 fringes of white hair; the lower half of the meso- and metapleurse are densely covered 

 with depressed silvery pile. The top of the head, thorax and abdomen sparsely covered 

 with longish black hair; the legs with white; the tibial spines are few, longish, black; 

 the calcaria white. Ventral keel broad, roundly incised in the middle; the 2 teeth 

 broadly rounded, the apical larger than the basal. Pygidium broad, opague, finely rugose, 

 the basal half finely, irregularly punctured. Vertex and front closely, distinctly punctured, 

 the former more strongly than the latter, which is irregularly striated above. Head a 

 little wider than the thorax, the temples as long as the eyes, roundly narrowed. Thorax 

 not quite twice longer than wide, rounded in front, transverse behind, the middle nar- 

 rowed, the dilated base shorter than the dilated apex, which has 5 stout short teeth on 

 the lower two-thirds of the sides. Mesonotum coarsely, irregularly longitudinally striated- 

 punctured; the apical slope widely reticulated. Abdomen longer than the head and 

 thorax united; broad at the base, the apex of the 1st segment punctured, forming a 

 broad margin; the 2nd rounded at the base, becoming narrowed towards the apex. The 

 mandibles end in a long, narrow tooth, rounded at the apex. $. 



Length 12 mm. 



Meru low lands, November 23. 



Allied to M. bioculuta, RAD. and SICH. 



Mutilla basimarginata, sp. nov 



Black, the thorax and basal slope of abdomen red, 2 oval spots of pale golden 

 pubescence near the apex of the basal third of the 2nd abdominal segment, the 3rd 

 segment covered with similar pile broadly laterally; the hair on the upper surface of the 

 head, thorax and abdomen black, on the sides and lower surface longer and white. 

 Head wider than the thorax, which is twice longer than wide, rounded in front, trans- 

 verse behind, the sides above slightly narrowed in the middle, with rough irregular edges, 

 the lower part of the apical slope with 2 distinct teeth, of which the lower is the larger; 

 the back is irregularly longitudinally coarsely punctured-reticulated, the punctures formed 

 by the interlacing of the stria 1 ; the apical slope, except narrowly above, is closely, 

 strongly longitudinally striated. Pleurae smooth, except at the base and apex, which are 

 irregularly punctured. The basal segment at the base has a raised broad curved keel; 

 the apex forms a broader distinct, punctured border, the central part being smooth and 

 with a straight, oblique slope. Basal ventral segment of abdomen with 2 bluntly rounded 

 tubercles, of which the apical is much larger than the other. Pygidium margined laterally, 

 fringed with long white hair, closely minutely punctured. $. 



Length 9 mm. 



