32 Cameron, Hymenoptera^from Grey mouth. 



Abdomen black ; the apical half of the second and the 

 basal half of the third rufo-testaceous ; the apex of the 

 second segment yellow ; down the centre of the petiole 

 (but not reaching the apex) are two keels ; the extreme 

 apex smooth, but, in front of this smooth part, there are 

 short, stout, longitudinal keels ; the second segment has, 

 shortly beyond the middle, a: wide, deep, transverse furrow, 

 which is finely longitudinally striolated, and, in the middle, 

 is bent a little backwards ; the base of the segment is 

 coarsely but closely punctured ; the third segment has 

 also a transverse furrow. 



Mesoleptus sybarita, sp. nov. 



Niger, capite thoraceque albo-maculatzs, apice inetanoti, 

 abdomine pedibusqiie rufis ; aits hyalinis, stigmate fiisco. $ . 



Long. 9 mm. 



Antennae black ; the scape reddish in the middle 

 beneath. Head lemon-yellow ; the occiput except at the 

 sides, the vertex except at the orbits, and a broad line 

 down the face to the base of the clypeus, black ; finely 

 punctured, very sparsely covered with short pale hair ; 

 the mandibles lemon-yellow, black at the apex ; the palpi 

 yellow, without a lemon tint. Thorax black ; a broad line 

 on the pronotum not reaching to the base, two lines in 

 the centre of the mesonotum extending from the base to 

 the apex, the base of the lines dilated outwardly, club- 

 shaped and touching the pronotum, the scutellum except 

 at the apex, post-scutellum, the prosternum, a large 

 oblique mark on the mesopleurae, the apex of the propleurae 

 to near the bottom, the tubercles, a large oblique mark 

 on the apex of the metapleurae and a small one at the 

 base above, lemon-yellow ; the middle lobes of the 

 mesonotum and the apical half of the metanotum 

 brownish- red : above the yellow mark on the mesopleurae 

 is a large brownish-red mark ; the upper part of the 



