46 Mr. G. Meade- Waldo on 



segment oblique, with sharply denned lateral margins, apical 

 angles spined. Petiole robust, widening gradually towards 

 apex; a tubercle on each side near the base; a furrow 

 running longitudinally on tbe dorsal surface towards apex ; 

 second abdominal segment pyriform, following segments 

 normal. 



The whole smooth, impunctate. except for a few shallow 

 punctures on apical margin of abdominal segments 2 and 3. 



Length 16 mm. 



Hab. Salisbury, Mashonaland, Sept. 1900 (G. A. K. 

 Marshall) ; 1 ? . 



Dedicated to the donor. 



This insect appears to be the first Pareumenes described 

 from Africa, the other species being principally Indian. 



Eumenes imperatrix, Smith, described from Northern China, 

 and E. pictifrons, Smith, from Celebes, should also bs placed 

 in the genus. 



Katamenes, gen. nov. 



Head as in typical Eumenes; mandibles long, not dentate, 

 sharply pointed. Antennae massive, hooked at apex. Maxil- 

 lary palpi 6- jointed ; joints 1, 2, 3 long, subequal ; joint 4 

 half as long as third joint, joints 5 and 6 very short, together 

 as long as fourth, joints 5 and 6 articulated to joint 4 below 

 the apex. Labial palpi 4-jointed. Petiole as long as thorax 

 and median segment, slender at base, apical half swollen, 

 constricted at apex. Claws of tarsi simple. One spur, very 

 obscure and rudimentary, on intermediate tibiee, situated on 

 the inner side. 1 <$ . 



In general superficial appearance strongly resembles 

 Eumenes, but has a peculiar look owing to the heavy, thickly 

 built antennas, which seem large in proportion to the insect, 

 and to the long, somewhat abruptly broadened robust petiole. 

 The articulation of the two terminal joints of the maxillary 

 palpi to the fourth joint below the apex seems to be ana- 

 logous to the terminal joints in the labial palpi of some 

 genera of bees, such as Meyachile, &c. 



Katamenes ivatsoni, sp. n. 



<J . "Black ; clypeus, mandibles, except the extreme apical 

 points, scape beneath, a narrow line behind each eye, the 

 cheeks, pronotum in front, broadening laterally, scutellum 

 in front, the postscutellum, two marks on niesopleuree on 

 each side, apical margin of petiole, and an apical band on 

 segments 2-6 of abdomen, both dorsally and ventrally, 



