Descriptions of Netv Species of Parasitic Hymenoptera. 113 



wide, obliquely depressed laterally at the base ; the other segments 

 wider than long ; the ovipositor longer than the abdomen. Trans- 

 verse median nervure in hind wings broken in the middle ; areolet 

 4-angled, the transverse cubital nervures uniting in front. Legs 

 moderately stout ; the basal joint of hind tarsi as long as the follow- 

 ing two united ; the claws bear a very large, broad, bluntly rounded 

 projection on the basal half. Colour yellow. 



The eyes are bare, parallel, neither converging above nor below ; 

 the malar space is not quite so long as the antennal scape. The 

 last antennal joint is as long as the preceding two joints united. 

 The disco-cubital nervure is slightly angled in the middle, not 

 broken by a stump ; the transverse median nervure interstitial. 



The clypeus is not separated so strongly by a furrow as it is in 

 Pimpla. Its nearest known ally is Erythropimpla. The yellow 

 colouration gives it the appearance of a Xantlwinmpla or Theronia ; 

 but the absence of keels from the median segment separates it from 

 both ; the stoutly keeled scutellum of the former and the smooth 

 abdomen of the latter are further points of distinction. 



HOLCOPIMPLA NIGRICORNIS, Sp. nov. 



Yellow ; the antennae black ; there is a black mark on either side 

 of the apex of the median segment, and a transverse one on the apex 

 of the second abdominal segment near the outer edge. Wings 

 hyaline, the stigma and nervures black, the areolet oblique, very 

 shortly appendiculated ; the recurrent nervure is received shortly 

 beyond the middle. ? . 



Length 11 mm. ; ovipositor 9 mm. 



Cape Colony. Kimberley. 



Head smooth, sparsely covered with short white pubescence. 

 Mandibular teeth black. Pro- and mesothorax are smooth and 

 shining ; the metanotum closely and strongly punctured, except the 

 central furrow which is smooth ; the upper part of the metapleurae 

 is more sparsely weakly punctured. Metapleural keel stout, be- 

 coming weaker towards the apex. Abdomen, except the last seg- 

 ment, closely, rugosely punctured ; the apices of the segments are 

 depressed, smooth ; the last is smooth, raised, triangular, bordered 

 by two furrows, which unite at the base. Hind tarsi black. Sheath 

 of ovipositor black ; slender. 



I have a specimen from the Transvaal which is only 7 mm. in 

 length. Such differences in size are not uncommon with the 

 Pimplina. 



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