Hymenoptfira. 313 



scutellum bordered by a distinct, thin keel, whicli becomes 

 narrowed at the apex where they unite ; the apex thus appears 

 depressed in the middle. Sides of metathorax broadly rounded, 

 not toothed. 



The fore tibia3 are much thickened, conii)ared with the others : 

 tlieir spur is long, thin and curved. Tegular large, conchiform. 

 Between the antennae is a plate, which becomes roundly narrowed 

 towards the middle. Ovipositor as in PJiaxgonojiliora. Malar space 

 longer than the eyes. 



Comes near to EucJialcis and Nfochalcli^. Characteristic 

 distinctions are the swollen anterior femora and tibia;, and the 

 plate between the antennae. The frontal f uri-ow, too, is more clearly 

 defined than usual. 



Tanycoryphns sulcifrons, sp. nov. 



Black ; all the tiliiae and tarsi, under side of their anterior 

 femora, hind tibia? behind, the apex and the ventral surface of the 

 abdomen, red. Wings hyaline, the nervures and stigma black ; 

 there is a black cloud behind the stigmal l)ranch and there are 2 

 spurious veins running from the stigmal region ; tegulae large, 

 piceous. Female. 



Length (S m.m. • 



Grahamstown, December. 



Densely covered with silvery pubescence. Basal half of 

 flagellum dark rufous. Head in front closelj-, almost uniformly 

 reticulated. Pro- and mesonotum closely, rugosely reticulated ; 

 the centre of the latter more strongly than the sides ; the scutellum 

 is similarly, but more strongly punctured-reticulated. Metanotum 

 deeply reticulated : the reticulations large. Propleurae rugose :'the 

 meso- aiul metapleura; irregularly punctuied. Mesopleui-al furrow 

 shallow ; irregularly striated, most strongly behind. Metapleurse 

 reticulated, the sides rounded, not toothed ; densely covered with 

 long silvery hair. The centre of the pro- and mesopleura? is more 

 strongly and distinctly reticulated than the sides ; the sides of the 

 pro-thorax at the base are keeled, the keels extending on to the 

 pronotum. 



