CAMKHUN, KOKS011KS. 1".) I 



5th, the whole of the 6th segment, above and below, the whole of the 1st ventral and 

 the 2nd to 5th, except for a triangular mark on the sides at the apex, black. Legs 

 lemon-yellow; the coxa 1 and trochanters, a broad line on the front femora behind, a 

 broader one on (he basal half of the anterior, a line on the basal half of the middle 

 and hinder femora and on the apical above, and a longish line on the hinder part of 

 the tibia 1 (shortest on the middle pair) black. Wings clear hyaline, the nervures black. 

 Head and thorax densely covered with moderately long pubescence, fuscous on the top, 

 longer and white on the sides; the base of abdomen densely with pale fuscous pubes- 

 cence. Front bluntly keeled between the antennae; the latter separated from each other 

 by a some what greater distance than they are from the eyes, which hardly converge 

 above. Antenna? moderately slender, the apical joints rufous below. Median cellule in 

 hind wings emitting 2 short branches of which the anterior is the longer. Anterior tarsi 

 dilated, the metatarsus with 7 spines, of which the basal is only half the length of the 

 others. Pygidium closely punctured, with out a distinct area or keeled laterally. There 

 is a triangular black point in the centre of the 2nd dorsal abdominal segment, 2 oblique 

 lines in the centre of the 2nd and 3rd, and 2 semicircular ones on the 4th and 5th. 



The cf has the black markings less extended than they are in the$; the antennae 

 have the flagellum brownish, except on the top, the 8lh joint has 2 short teeth, of which 

 the apical is blunter and shorter than the basal; the 9th is roundly dilated; the following 

 2 slightly hollowed below, the last is roundly curved. Middle femora indistinctly, irre- 

 gularly serrate. Anterior tarsi slender, the spines slender; on the metatarsus are 7 spines 

 as in the $. Spine on 2nd ventral segment prominent; at the apex it forms a rounded 

 curved with the 2nd segment. Pygidium closely, strongly punctured, except in the middle 

 of the apical half; the hypopygium is keeled in the centre, its apex rounded, slightly 

 turned in in the middle; the penultimate ventral segment has the apical half distinctly 

 raised in the middle; the raised part clearly defined and becoming gradually narrowed 

 towards the apex. Length 13 15 mm. 



Mern low lands, Ngare na nyuki. Mombo, Usambara, June. 



Bembex oruatilabiata, sp. nov. 



Black, a curved line on the sides of the labrum, narrow above, wider below (the 

 black central part is roundly dilated above), a narrow line on the outer orbits, a nar- 

 rower one on the apex of the pronotum, a curved mark behind the tubercles, a mark, 

 gradually narrowed on the innerside, in the centre of the sides of the 1st abdominal 

 segment, the middle of the 2nd and 3rd segments, the black basal part with a projection 

 on eitherside of the middle, that on the 2nd projecting outwardly, the projection clearly 

 separated, a curved line, narrowed in the middle across the centre of the 4th and a 

 transverse mark (about one third of the width of the segment) narrowed gradually on 

 the innerside, on the sides of the 5th, and triangular spots on the sides of the 2nd, 3rd 

 and 4-th ventral segments, pale olive-yellow. Legs of a brighter yellow colour, the coxee, 

 trochanters, base of femora narrowlv above, and from near the top of the sides and 



