72 Annals of the South African Mnsewn. 



t 



EXOTHECIXI. 

 EXOTHECUS, Wesm. 



This genus is represented by some of the handsomest of the South 

 African Braconidae. The position of the radius on the stigma varies ; 

 t may issue from beyond the middle (forticornis) or behind the 

 middle {elizahctha). 



The following table will serve to distinguish the species : — 



1(2). Abdomen, legs and wings black flavicepx. 



2 (1). Abdomen and legs not black. 



3 (6). Wings fuscous, spotted with yellow, body testaceous. 



4 (ij). Length 18 mm., keel on second abdominal segment ending 



in a sharp point, not bordered by furrows fldvofasciatitx. 



ry (4). Length li mm., keel on second segment ending in a blunt 



point, bordered by furrows forticoniix. 



6 (3). Wings yellow, black at base or maculate. 



7 (8). Wings yellow at base only, the apical fuscous part with > (■(lUdliciihitiin 



yellow spots, the hind tibias and tarsi black i and tilnalix. 



8 (7). Wings yellow, spotted with fuscous ; the tibiae and tarsi 



black. 



9 (10). Eufous, the abdomen not black at the apex ; the keel on 



second abdominal segment triangular, indistinct ; length 



19 mm. .. pnlchripeiDiin, 



10 (9). Yellow, the abdomen black at apex ; the keel on second 



segment long, ending in a sharp point ; length 13 mm. . . elizahetlup. 



ExOTHECUS ELIZABETHS, Sp. noV. 



Pale luteous, the antennae, the third segment except the part at 

 the sides inside the lateral furrows, the whole of the following seg- 

 ments, the hind tibiae, except their extreme base and the tarsi, black ; 

 wings yellowish hyaline, a narrow smoky cloud at the base of the 

 stigma, extending from the base of the first discoidal cellule obliquely 

 to the apical lower angle, it becoming narrowed towards its apex, a 

 small rounded cloud on the apex of the second discoidal, the apex of 

 the radial cellule, except the extreme base, the cloud above continued 

 round the top, the apex and round the lower apical margin and along 

 the anal nervure to shortly behind the middle ; and there is a small 

 smoky cloud in the apex of the hind wungs. 3 • 



Length 13 mm. 



Cape Colony. Port Elizabeth. 



Smooth and shining ; the face covered with longish fuscous hair. 

 Antennal scape twice longer than its width at the apex. Tips of 

 mandibles black. Plate on second abdominal segment reaching to 



