Descriptions of Neio Species of Parasitic Hymcnoptcra. 59 



two broader ones on the fifth, both narrowed on the outer side at the 

 apex ; and the mesosternum broadly, black. Wings hyaline, the 

 stigma and nervures black. ^ . 



Length 7 mm. 



Cape. 



Face closely, distinctly punctured ; its centre furrowed above, the 

 a,pex with a triangular depression ; the rest of the head, pro- and 

 mesothorax smooth. Metanotum closely finely rugose ; the pleurae 

 distinctly, closely punctured ; the base of the metanotum is smoother, 

 more shining. Abdomen long, slender, of equal width ; its first 

 segment closely, irregularly longitudinally striated, the striae inter- 

 lacing and forming almost reticulations at the apex, the second to 

 fifth segments closely longitudinally striated, the striae becoming 

 gradually weaker ; the second has a longitudinal keel down the 

 centre, this keel being bordered at the base by oblique striae ; the 

 sixth segment is as long as the preceding. There is a curved crenu- 

 lated furrow on the base of the second segment at the sides ; there is 

 a narrow keel, not dilated at the base, down the centre ; there are 

 crenulated furrows at the base of the third, fourth, and fifth seg- 

 ments ; the apical branch of the suturiform articulation is short, 

 indistinct. 



The form of the abdomen is different from what it is in the typical 

 Bracon or Iphiaulax, it being longer, more slender and of more 

 uniform thickness. The furrows are deeper than in Bracon, but 

 not quite as in Ipiliiaulax. 



VIPIO, Latr. 



This genus is well represented in the collection. The following 

 table is given as an aid to the determination of the species : — 



1 (6). Mesonotum immaculate. 



'1 (3). Abdomen smooth, impunctate, pleurte maculate with 



black trimaculatux. 



3 (2). Abdomen closely punctured, pleuiffi immaculate. 



4 (5). Apex of mesonotum strongly punctured in the middle. . stictonotus. 



5 (4). Apex of mesonotum not punctured in the middle. . . . natalensis. 



6 (1). Mesonotum maculate with black. 



7 (10). Apex of abdomen black. 



8 (9). Wings lacteous-hyaline, smoky at the apex ; the stigma 



pale yellow imllidinerviA. 



9 (8). Wings uniformly fuscous, the stigma testaceous, the 



nervures black fuiuipennis 



10 (17). Apex of abdomen not black. 



11 (16). Hinder tibiae black. 



