74 Annals of the South African Museum. 



Smooth and shining. Metanotiim and base of abdomen covered 

 with long black hair. Ai'ea on second abdominal segment, gradually 

 nari-owed from the base to the apex, which is bluntly pointed ; it is 

 about one-third longer than its width at the base ; it reaches to the 

 base of the apical third of the segment ; the furrows are smooth ; the 

 suturiform articulation has a distinct lateral apical branch. The 

 third abscissa of the radius is shorter than the second. 



EXOTHECUS FLAVOFASCIATUS, Sp. nOV. 



Head and thorax dark, the abdomen light ferruginous, the meso- 

 notum black ; the second abdominal segment yellowish ; legs 

 coloured like the head and thorax ; the hind tibiae and tarsi 

 blackish ; wings dark fuscous, iridescent, slightly tinged with viola- 

 ceous ; a broad, clear yellowish hyaline cloud on either side of the 

 second transverse cubital nervure, extending slightly into the radial 

 cellule and more broadly into the discoidal, at the transverse cubital 

 nervure ; stigma testaceous, the costa and nervui'ss black. $ . 



Length 18 mm. ; terebra 21 mm. 



Cape Colony. Neighbourhood of Cape Town. 



Smooth and shining ; the median segment thickly covered with 

 fuscous pubescence ; the base of abdomen more sparsely with long 

 fuscous hair. Upper half of face closely rugosely punctured, the 

 lower smoother, only sparsely punctured. Abdomen as long as the 

 head and thorax united ; the area on second segment distinct, gradu- 

 ally narrowed to a sharp point, not reaching to the base of the apical 

 third of the segment ; the furrows are smooth ; the base of the third 

 segment and a thin transverse line on the base of the fourth yellow. 

 The third abscissa of the radius is shorter than the second ; the 

 recurrent nervure is received not quite the length of the first 

 abscissa of the radius from the apex of the cellule ; the transverse 

 median double its length from the transverse basal. 



? ExOTHECUS FOBTICORN'IS. 



Eeddish luteous, the antennae black, the hind tibiae from near the 

 base and the hind tarsi blackish ; wings fuscous, a yellowish-hyaline 

 cloud in the first cubital cellule, extending into the discoidal, and a 

 larger one on either side of the second transverse cubital nervure, 

 extending into the discoidal and radial cellules ; the costa and stigma 

 pale yellow, the apex of the former black. $ . 



Length 13 mm. ; ovipositor 15 mm. 



Transvaal. Potchefstroom. 



