Hymenoptera. 299 



which converge slightly towards the apex. Scutellnm similarly 

 punctured. Metanotum closely rugosely punctured, the punctures 

 round and forming reticulations in places. Propleurre sparsely 

 punctured ; the lower part of the apex longitudinally striated ; 

 the meso- and metapleurae closely rugosely punctured — reticulated; 

 more strongly and irregularly in the middle of the mesopleurae 

 than elsewhere. Apical two-thirds of the 1st abdominal segment 

 nodose, the apex of the narrowed base depi'essed, keeled down the 

 centre, the base shagreened, raised in the middle ; the 2nd, 3rd 

 and 4th segments closelj' and finely punctured ; the others more 

 sparsely, except on the base and apex of the last which are smooth; 

 its apex bears some deep, large punctures. The 2nd recurrent 

 nervure is roundly curved outwardly in the middle, 



Plesia cont/nim, sp. nov. 



Length 15 mm. Male. 

 Brak Kloof. Mrs. G. White. 



This species closely resembles P. intemqda ; the two may 

 be separated thus : — 



A smooth tubercle below the ocelli, the central mark on the 

 abdominal segments not united to the lateral by a distinct 

 yellow line ; the 2nd and 3rd abscissae of radius equal in length ; 

 the transverse median nervure in hind wings, with the upper 

 branch not much shorter than the lower ; the yellow line on 

 ventral segments largely and broadly dilated in the middle . . 

 iriterrupta. , 



No smooth tubercle below the ocelli ; the central mark on the 

 abdominal segments not united to the lateral by broad bands ; the 

 2nd abscissjB of radius distinctly shorter than the 3i-d, the transverse 

 median nervure in hind wings with the upper branch distinctly 

 shorter than the lower ; the yellow lines on the ventral segments 

 not dilated in the middle. . . continita. 

 The mark on the mesopleuia^ is broadly rounded behind; 

 the lower side rounded and longest at the base, not transverse 

 and only slightly dilated at the base ; the base of the median 

 segment is much more strongly punctured than the apex ; the 

 mark on the apical segment of the abdomen is larger, it com- 

 mencing behind the middle, obliquely narrowed at the apex 



