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weak tubercle in front of the middle coxse. First abdominal segment 

 seen from above much widened before and constricted at the apex; 

 its surface coarsely punctured, more sparsely on the summit; seen 

 from the side also widened before and again contracted at the apex 

 so that it is strongly nodose; its under surface long, straight, much 

 longer than wide at apex, its sternite with a médian, low keel. Second 

 sternite very convex; its posterior margin with a weakly impressed, 

 transverse area, in front of which on each side is a weakly indicated, 

 short, oblique tubercle. Second tergite coarsely punctate, a little 

 more sparsely and finely in the middle. Last sternite flat, with a few 

 evenly distributed, setigerous punctures. 



Habitat : Belgian Congo, one maie, without more definite ocality 

 (? Mayumbe) (ded. Gilson). 



Holotype : Congo Muséum, Tervueren. 



Stenomutilla atra Bischoff. 



A female from Malela, which we suppose to belong to this species, 

 seems to differ from any of those mentioned by Bischoff. One reason 

 for calling it atra is that we hâve two maies of this species from the 

 same locality, which in gênerai appearance are very much like the 

 female. The posterior margin of the head does not hâve its médian 

 part produced into a rim as in dolichoderoides. The thorax seen from 

 the side is not so slender as in that species or in congoana. The first 

 addominal segment is broader than in dolichoderoides, resembling in 

 that respect more closely congoana, and it has a distinctly carinate 

 ridge beneath. The sculpture of the second tergite seems to be as 

 in congoana. While the clypeus has, as in dolichoderoides, a superior, 

 médian, transverse lobe, absent in congoana. 



