Descriptions of New Species of Parasitic Hymenoptera. 35 



punctured ; the sides, shortly above the middle, armed with a broad, 

 stout, rounded tooth. Abdomen alutaceous, irregularly longitudi- 

 nally striated, the striae becoming weaker towards the apex. 

 Antennae 16-jointed ; the basal joints of the flagellum elongated. 

 Eadial cellule short, the radius not reaching to the middle ; in front 

 it is as long as the stigma ; the second transverse cubital nervure is 

 faint, almost obliterated ; the cubitus is faint« at the base of the 

 second cubital cellule. Tegulae black. Frontal fovea opaque. 

 Apex of abdomen not grooved ; the ovipositor as long, or slightly 

 longer than the longer hind calcaria. In one specimen the antennal 

 scape is red below. The apex of the metanotum has a steep, oblique 

 slope, and is somewhat strongly, irregularly striated ; the striae are 

 twisted. 



The broad white, undivided band on the base of the abdomen 

 distinguishes this species from the two others here described. 



GASTROTHECA, Guer. 

 Gastrotheca bilobata, sp. nov. 



Eufo-testaceous, the head paler, the abdomen darker than the 

 thorax; the antennae, a square mark on the vertex, enclosing the 

 ocelli, the occiput, except narrowly on the sides, a large mark on 

 the apical two-thirds of the sides of the mesonotum, prosternum, 

 mesosternum, a large mark on the base of the abdomen, the base 

 becoming gradually wider, the apex bifurcating into two stout, 

 diverging branches black ; beyond this is a smaller irregular mark, 

 irregularly dilated laterally at the apex. Wings hyaline, slightly 

 tinged with yellowish at the base ; the nervures to the transverse 

 median testaceous, the apical, costa and stigma black, j . 



Length 5 mm. 



Cape Colony, Neighbourhood of Cape Town. 



Antennae longer than the body ; the scape four times longer than 

 wide, covered with white pubescence ; the first joint of flagellum 

 slightly longer than the second. Head closely, finely punctured ; 

 the depressed front more distinctly than the rest. Mesonotum 

 closely pubescent ; the furrows distinct ; there is a furrow down the 

 middle of the central lobe. Scutellum shining, impunctate ; its sides 

 and apex not margined. Centre of metanotum broadly roundly 

 dilated, the sides also slightly dilated, the apex being therefore 

 trilobate ; the middle irregularly striolate, the rest shagreened. 

 Base of abdomen closely longitudinally striolate, the apex more 

 strongly striolate-reticulate ; the teeth are about three times longer 



