A. TULLGREX, HYMENOPTERA ACULEATA FROM THE CAMEROONS. 445 



nearly impunctate. The mesonotum with some very low longi- 

 tudinal ridges, very fine and densely punctured. The prono- 

 tum and the scutelli brilliant smooth, impunctate. The me- 

 dian segment densely and finely punctured. Above in the 

 middle-Kne with a short longitudinal impression with a very 

 narrow carina in the bottom. Behind this impression a low 

 longitudinal furrow. The abdomen pruinose nearly impunc- 

 tate. The episternal suture distinct. The mesopleuron den- 

 sely and coarsely punctured. 



The metatarsus of the first pair of legs on the outside 

 with 7 spines, of which the basal one is very small. 



The cubital nervure of the hind-wings reaches the dis- 

 coidal nervure a little behind the transverse anal nervure. 



Length 14 mm. Exp. 25 mm. 



Fam. Vespidae. 



Eiimenes Latr. 



Latreille, Hist., nat. Crust. & Insect. III. 1802. 

 Saussure, Etudes sur les Vespides I. 1852. 



E. maxillosa De Geer. 



Several specimens from Itoki ( s /i 1891), Ekundu ( 22 /g 1891) 

 and Bonge (\i 1892). 



Geographical Distribution. — Africa: Egypt, Abyssinia, 



Senegal, Congo, Angola, Guinea, Mossainbique, Madagas- 

 car, German East Africa etc. 



E. tropicalis Sauss. 



Two females from Itoki ( 13 /i, 8 /2 1891). 



Geographical Distribution. - Africa: Senegal and the Ca- 

 meroons (Brauns). 



E. gracillima Tullgr. n. sp. (Pl. 23, fig. 8). 



A single male. — This species seems to me to be very 

 nearly related to Eumenes melanosoma Sauss. or tethiopica 

 Sauss. and belongs to the third division of this genus (Conf. 

 Saussure, Études sur les Vespides I, p. 60). 



