Some New Genera and Species of Hymenoptera. 197 



nervure about three times its length from it. Transverse median 

 nervure interstitial. Transverse median nervure in hind wings 

 broken distinctly below the middle ; the radius and cubitus faint. 

 Forewings spotted. Antennae at least 18-jointed (the apical joints 

 are broken off) ; pilose ; the second joint of nagellum longer than 

 the third. Eyes large ; malar space small. Hind ocelli clearly 

 separated from the eyes ; they are separated from them by a less 

 distance than they are from each other. Occiput margined. First 

 abdominal segment long (as long as the following two segments 

 united), slender, not much dilated at the apex; the spiracles near 

 the middle ; the middle of the post-petiole keeled ; the second and 

 third segments closely, strongly longitudinally striated. Sternal 

 furrow wide, deep. Legs long, slender, the tarsi closely spinose 

 below ; claws simple. Temples broad, obliquely narrowed. Occiput 

 margined. 



The affinities of this species are with Ccenoaidax here described. 

 It is easily separated by the areolated metanotum, longer and more 

 slender abdominal petiole, and by the absence of transverse furrows 

 on the basal segments. 



LlENELLA NIGRICEPS, Sp. n0V. 



Eufous, antennae, except the scape and basal joints of flagellum, 

 head, breast, median segment, except the base of the pleurae, and 

 the base and apex of the abdomen black. Legs rufous, the anterior 

 paler, more yellow in tint. Wings clear hyaline, the nervures and 

 stigma black ; there is a brown cloud which extends from shortly 

 behind the base of the radius to shortly beyond the middle of the 

 radial cellule and posteriorly to the discoidal nervure. $ . 



Length 6 mm. 



Cape Colony. Dunbrody, February 17th. 



Front closely, roundly striated ; a square fovea in the middle 

 below. Vertex closely, finely obliquely striated. Mesonotum closely 

 striated ; obliquely at the base, the rest transversely ; apex of middle 

 deeply longitudinally furrowed. Scutellar depression wide, deep. 

 Scutellum rugosely punctured. The base of the first central area 

 smooth, its apex closely transversely striated, the second punctured, 

 the outer rugose ; the central outer reticulated ; the others with a 

 few irregular keels. Pro- and meso-pleurae punctured and irregu- 

 larly striated ; the meta- closely, rugosely punctured. Post-petiole 

 with some fine longitudinal striae ; the second and third segments 

 closely, strongly longitudinally striated. Hind coxae and femora 

 punctured, thickly covered with white hair, 



