146 Annals of the Soutli African Miiseum. 



segments lined with white above ; legs black, the anterior suffused 

 with testaceous ; maxillary palpi black, the apical joints fuscous ; 

 the labial white. Antennae black, the eighth to eleventh joints 

 white. Wings hyaline, the stigma and nervures black. J . 



Length 10 mm. ; terebi-a 2 mm. 



Rhodesia. Sebakwe. 



Face closely punctured-reticulated ; the clypeus smooth and 

 shining ; the upper part of front closely striated, oblique, almost 

 reticulated ; the depressed lower part smooth ; the vertex closely 

 punctured. Mesonotum closely punctured, the furrows deep. 

 Scutellum on basal slope transversely striated, on apical more 

 shining; punctured, but not closely or strongly. Median segment 

 closely reticulated-punctured ; there is only the basal keel. The 

 middle of post-petiole is bounded by a keel ; the base of the second 

 segment is closely reticulated-punctured. 



MeSOSTENUS ALBIPALPIS, Sp. nOV. 



Dark red, the apex of the fifth broadly and the greater part of the 

 following abdominal segments clear white. Palpi clear white. The 

 fore coxae, femora and tibiae and the middle femora and tibiae white 

 in front. The antennae are rufo-testaceous, darker above. Wings 

 hyaline, the stigma and nervures Ijlack. 3 • 



Length 8 mm. 



Cape Colony. Port Elizabeth. 



The third joint of the antennae is distinctly longer than the fourth. 

 Face and clypeus closely, strongly punctured, the punctures on the 

 apex of the clypeus sparser. Mandibles red ; white at the base 

 above, black below. Vertex closely, obliquely striated ; below the 

 ocelli are a few fine longitudinal striae. Mesonotum closely punc- 

 tured, more or less transversely striated. Scutellum shining^ 

 sparsely, distinctly punctured. Base of metanotum finely, irregu- 

 larly, obliquely striated. Both the transverse keels are stout, 

 complete ; the space between them is stoutly striated, the striae 

 widely separated ; in the middle they are twisted and curved ; the 

 apical slope is reticulated regularly all over ; the reticulations are 

 wide. Propleurae obliquely striated above ; below more strongly 

 longitudinally striated ; the meso- and base of metapleurse are more 

 closely longitudinally, the upper part of the latter more strongly 

 obliquely, striated. Petiole smooth, the post-petiole punctured on 

 the sides, the middle striated — finely striated at the base, more 

 strongly longitudinally at the apex ; the second to fourth segments, 

 are closely punctured. 



