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is lacking, leaving the sternite bilaterally asymmetrical with only 

 the basai, triangular tubercule on one side. In the type of congoensis 

 this is true on both sides, only the triangular, basai tubercles remaining, 

 but it is apparent that the matter is one of individual variation and 

 would not be distinctive of a séries of spécimens. 



It is évident, therefore, that the species is a variable one in minor 

 structural characteristics, in color, and in vestiture; we feel obliged 

 to reduce kibomboana and congoensis as varieties of leonina, and to 

 consider jokolensis as synonymous with congoensis. In transferring 

 thèse forms to Smicromyrme we sélect leonina as the proper name of 

 the species, there being another Smicromyrme kibomboana which has 

 precedence over Glossotilla kibomboana. 



Smicromyrme (Glossotilla) mukongo, new species. 



Maie.— Entirely black; calcaria white. Covered with erect, white and 

 a few black hairs and dirty white, appressed pubescence arranged as 

 follows : front between the antennas; sides of the pronotum; dorsal 

 surface of propodeum; round, subbasal latéral spots and a slight mé- 

 dian apical fringe on second tergite; interrupted apical band on the 

 third; médian apical band on the sixth. Wings infuscated, slightly 

 paler in the cells at base. 



Length : about 14 mm. 



Head transverse; short and rounded behind the eyes; middle of the 

 posterior margin concave. Ocelli small, in an equilateral triangle, 

 the base of which is anterior to the postocular line; anterior ocellus 

 larger than the other two. Vertex coarsely, rugosely punctate; front 

 more closely. Antennal grooves sharply margined. Clypeus with a 

 strongly raised portion, produced upward between the antenne 

 in the form of a ridge; this raised portion rather triangular in shape, 

 punctulate, but with its surface rounded and not sharply bordered, 

 rounding below into the depressed, impunctate disk; the sides of 

 this impunctate area stretching away narrowed to the condyles of 

 the mandibles; the disk traversed medially by a weak longitudinal 

 élévation; its anterior margin apparently the rounded margin of the 

 clypeus; but, in reality, the anterior lobe is turned under at a right angle 



