Aculeate Hymcnoptcra in Oxford Museum. 541 



28. Myrmilla africana, form n. 

 Natal {Coll. W. W. Saunders). 



^ . Black and shining ; the apices of the mandibles, the antennal 

 tubercles, apex of the scape, 2nd joint of the flagellum of the 

 antennae, the pro- and niesonotum, and scutellum brick red. Head, 

 thorax, legs and abdomen covered with sparsely scattered erect white 

 hairs. Head finely punctured broader than long and slightly 

 broader than the thorax, mandibles acutely pointed, apical lialf 

 longitudinally grooved, two preapical blunt teeth on the inner 

 mai'gin ; antennae opaque, 2nd and 3rd joints of the flagellum sub- 

 equal ; eyes oval, entire, slightly convex. Thorax rounded in front, 

 posteriorly roundly truncate, finely punctured, the median segment 

 reticulate ; wings flavo-hyaline, forewing with the stigma small, the 

 radial cell short and wide, two complete cubital cells, the third 

 cubital faintly traced, the 2nd recurrent nervure present, terminating 

 well beyond the 2nd cubital cell ; legs slender, tibial calcaria 

 elongate. Abdomen nearly smooth, only very sparsely and finely 

 punctured ; 1st segment with the carina not much raised. 



Length ^ 6 mm. Exp. 11 mm. 



Described from a single examjile. 



Note. — The manuscript of this memoir gave the name nlhicans 

 to the above species ; but the specimen itself was distinctly labelled 

 " africana, Bingham ^ , Type." — E. B. P. 



29. DOLICHOMUTILLA VETUSTATA, form n. 



S. Rhodesia : Mt. Kapsuku, nr. Feira 3400 ft. $ : May 

 20, 1904 ; and N.E. Rhodesia, East Loangwa Dist., 

 Petauke 2400 ft. ^^ ^ : Marcli 1 and 17, 1905 (S. A. Neave). 



The specimen bearing the date Marcli 17, 1905, is 

 marked as the type. 



^ . Jet black, the face in front somewhat sparsely clothed with 

 long white hairs, the thorax with scattered erect black hairs the basal 

 five abdominal segments fringed on their apical margins laterally 

 with long white hairs ; wings dark fuscous with a magnificent 

 purple effulgence. Head, pro- and niesonotum, scutellum and post- 

 scutellum very densely and somewhat coarsely punctured ; median 

 segment reticulate, the reticulations large even and deep ; abdomen 

 closely but more finely punctured with the punctures shallower than 

 on the thorax, on the middle of the segments above the punctures 

 are sparse, the segments showing more or less of a smooth area, 

 intermediate and posterior tibiae without spines. Head narrower 



