102 Annals of the South African Museum. 



Cape Colony. Namaqualand Distr. ; O'okiep ; Klipfontein. 



Face closely, distinctl}- punctured ; the upper part of the clypeus 

 more strongly, but not so closely punctured, the lower smooth ; the 

 front and vertex punctured somewhat like the face. There is a short 

 yellow line behind the middle of the mandibles in front. Palpi 

 blackish. Pro- and mesothorax closely and regularly punctured. 

 Metanotum closely rugosely punctured, more or less finely striated- 

 reticulated; the metapleurae punctured like the mesopleurae. Abdomen 

 smooth and shining. Areolet 5-angled ; the nervures not quite 

 meeting in front ; the ti'ansverse median nervure not quite inter- 

 stitial. 



KHYNCHEXETASTES, gen. nov. 



Labrum large, longer than the clypeus, malar space distinct, as 

 long as the antennal scape; the mandibles long, projecting down- 

 wards, their apices meeting in the middle of the labrum, enclosing 

 the labrum ; they end in two broad teeth. Trophi elongated ; the 

 maxillae as long as the face and clypeus united. Occiput transverse, 

 margined. Temples obliquely narrowed. Parapsidal furrows absent. 

 Metanotum neither areolated nor keeled ; the spiracles linear. First 

 abdominal segment as long as the following two united ; it becomes 

 gradually widened towards the apex ; the second is longer than its 

 width at the apex ; the third is square. Areolet shortly appendicu- 

 lated ; the disco-cubital nervure distinctly broken by a stump of a 

 nervure ; the transverse median is interstitial. Transverse median 

 nervure in hind wings broken near the top. Third antennal joint 

 as long as the following two united. Front with a keel between the 

 antennae. 



The abdomen is smooth and shining ; it is thickened towards the 

 apex; the sheaths of the ovipositor are broad and as long as the 

 apical two segments united. Hind legs long ; the coxae thickened, 

 long ; apices of tarsal joints spinose ; the claws simple. The wings 

 are uniformly fuscous violaceous. 



The affinities of this species are with Exetastes, from which it 

 may be known by the elongated trophi, fuscous violaceous wings, 

 and by the disco-cubital nervure being distinctly broken. The 

 elongated trophi allies it to the American genera Agathilla, West, 

 and AgathobancJius, Ashm., but these have the trophi much more 

 lengthened. 



As I have said, the affinities of this genus are with Exetastes 

 rather than with Banchus. Probably its nearest known ally is 



