P. CAMERON. HYMENOPTERA. 235 



17(18) Wings uniformly smoky fuscous, the ovipositor shorter than the abdomen, heuvelensis. 



18 (17) Wings not uniformly smoky fuscous, the base lighter than the apex. 



19 (20) Robust, the antennal scape black on top, the part behind middle of suturiform articul- 



ation not raised, the i st discoidal cellule hyaline in fore half, the furrows bordering 

 area on 2 nd abdominal segment closely crenulated .... cultricaudis . 



20(12) Slender, the antennal scape red above, the part at the middle of suturiform articulation 

 triangularly raised, the i st discoidal cellule uniformly smoky; the furrows bordering area 

 on 2 nd segment not crenulated ........ basiomatus. 



1. Camploneurus nibrituberculatus sp. n. 



Alkmaar, November. 



Black, the thorax, antennal tubercles, 4 front legs, the hinder coxae, trochanters, femora, 

 the basai segment of the abdomen and the area on the base of the 2nd red; the mandibles, 

 except the teeth, of a paler, more testaceous red, the palpi of a paler, more yellowish 

 testaceous colour; there is a narrovv yellowish line on the apex of the 3 rd , 4 th and 5 th abdo- 

 minal segments, the 4 basai ventral segments white, with large semicircular black marks on 

 the sides, the marks on the ist smaller than the others. Antennal scape dull rufous, the 

 flagellum fuscous below. Wings hyaline, tinged with brassy, very iridescent, violaceous towards 

 the apex; the base of radial cellule and the ist cubital in front smoky; the stigma and 

 nervures black, the apex of parastigma testaceous; the récurrent nervure received in i st cubital 

 cellule, clearly separated from the transverse cubital. Q. 



Length 10 m. m.; terebra 5 mm. 



Area on 2nd abdominal segment smooth, as wide at the base as it is long, forming an 

 equilateral triangle on the basai two-thirds of the segment ; the furrows bordering it smooth ; 

 suturiform articulation narrow, crenulated, more weakly so on the outer edge than in the 

 centre ; the latéral apical branch is wider and smooth ; there are smooth, narrow furrows on 

 the base of the 4 th , 5 A and 6* segments, but none on the apex. The abdomen is longish 

 oval and is slightly longer than the thorax. 



2. Camploneurus pilitarsis sp. n. 



Regen Island, December. 



Black, the malar space, basai half of mandibles, the anterior legs, middle femora and 

 the thorax, red; the wings dark fuscous, slightly tinged with violaceous, the apex lighter in 

 tint, the stigma and nervures black; the basai abscissa broadly roundly curved, bluntly angled 

 before the middle; the base thicker than the apex; the ist abscissa of radius not much 

 shorter than the 2 n <l transverse cubital nervure; the transverse médian nervure received 

 shortly behind the transverse basai; the récurrent in the i st cubital cellule, close to the 

 transverse cubital. Legs stouter than usual, the apex of the i st joint of the tarsi and the whole 

 of the others thickly covered with rufous pubescence on the basai 4; the apices of the joints 

 spinose. The face, apex of thorax and legs covered with white pubescence. Ovipositor broad, 

 widened towards the apex. Ç. 



Length 7; ovipositor 3 mm. 



Smooth and shining; the temples broad, roundly narrowed, the occiput transverse. Eyes 

 large, malar space distinct, as long as the 2 nd joint of flagellum. Parapsidal furrows narrow, but 

 distinct to near the apex. Abdomen wider than the thorax, smooth, without furrows. 



