— 231 — 



« Hôckerreihe » he says in contrast to « Dornenkamm ». The females 

 only are known and it seems clear that we hâve only a group of species, 

 distinguishable only as females and of which the maies will prove to be 

 of the ordinary Trogaspidia type. We therefore consider Pristomutiîla 

 as of subgeneric rank. 



Viereckia is also a member of the same complex and is distinguished 

 by the présence of testaceous spots on the integument of the second 

 tergite, a character which also occurs in species retained by Bischoff 

 in Trogaspidia and in Myrmilla. We prefer to consider it also as a 

 subgenus. 



Smicromyrme (Smicromyrme) zairensis, new species. 



Maie. — Black; pronotum, mesonotum and tegulse dull red; calcaria 

 whitish. Covered with erect, sparse, white hairs and decumbent 

 silvery setae on the front, temples, clypeus, below the eyes, base of 

 propodeum, and apical fringes on the first four tergites. Wings brown, 

 paler at the base, with violaceous reflection. 



Length : holotype, about 10 mm.; paratype, 6 mm. 



Head transverse, subparallel, but not much extended behind the 

 syes; the hind margin straight, except somewhat incised medially. 

 Vertex coarsely punctured, slightly raised between the ocelli, with 

 a weak, médian, longitudinal impression. Clypeus transversely de- 

 pressed, but somewhat raised in the middle; its anterior margin weakly 

 bidentate. Edges of the mandibles raised, forming a cup-like rim; 

 externally the mandibles dentate. Second flagellar segment shorter 

 than third. Pronotum on its anterior margin with latéral angles roun- 

 ded, posteriorly angularly emarginate; within this emargination the 

 mesonotum is depressed, black, and only minutely punctulate. Dor- 

 sum closely, coarsely punctate; parapsidal furrows distinct posteriorly. 

 Scutellum convex, with a weak indication of a médian, longitudinal 

 dépression. Propodeum coarsely reticulate. Mesosternum with evenly 

 convex surface, without either superior or precoxal tubercles. Marginal 

 cell short and broad, no longer than first submarginal. First abdo- 

 minal segment umformly broadened to its apex, where it is not 

 constricted from the second, but is much narrower than the maxi- 

 mum width of the latter; its sternite with a médian carina but no 



