238 P. CAMERON. HYMENOPTERA. 



2 nd abdominal segment, smooth, triangular, as long as it is wide at the base; its apex extends 

 to the middle and ends in a distinct spine; from near its apex a keel runs out from the side ; 

 there are smooth basai furrows on the 3 rd and 4 th segments. The base of the mesonotum 

 is raised in the middle. 



7. Cainploneurus brevistriolatus sp. n. 

 Bivak Island, October. 



Ferruginous, the face and orbits paler; the 2n<i and following abdominal segments black, 

 the basai segment of a darker red, its raised central part infuscated ; the central and outer 

 parts of the ventral segments white, the rest with large black spots, the flagellum of antennae 

 black; wings dark fuscous, the nervures and stigma black; the 3^ abscissa of radius distinctly 

 longer than the basai 2 united; the 2 nd cubital cellule about 3 times longer than wide; the 

 basai abscissa of the cubitus bluntly, roundly angled at the base; the transverse médian 

 nervure not interstitial, received shortly beyond the transverse basai. Smooth and shining, 

 the sides of the ist abdominal segment, except at the base and apex, finely, distinctly striated ; 

 the area on the 2 nd abdominal segment wider at the base than it is long, gradually obliquely 

 narrowed to the apex, which ends in a tooth-like, clearly separated point; the bordering 

 furrows wide, irregularly crenulated ; there is a wide furrow down the sides of the segment, 

 its apex roundly narrowed ; the suturiform articulation strongly crenulated in the middle, 

 there being there S stout, distinctly separated striae, the outer parts more weakly and irregularly 

 striated, the apical furrow smooth, wide, deepened on the outer edge, there is a narrow smooth 

 furrow on the base of the 4* segment ; the apices of the 4A and following segments are 

 narrowly, not very distinctly, edged with white. The mesonotum is slightly raised in the 

 middle on the basai half. The end joint of the tarsi is infuscated. 



Length 12 mm.; terebra 8 mm. 



The face, metanotum and pleurae are densely covered with white pubescence; the legs 

 with shorter and denser pubescence. Clypeus finely, sparsely punctured; the front obliquely 

 hollowed, a distinct furrow down the middle. Temples two-thirds of the length of the eyes, 

 obliquely roundly narrowed. 



8. Camplonetiriis alkmaarensis, sp. n. 



Alkmaar, August. 



Head, thorax, the antennal scape except for a black broad line on the sides and the 

 legs ferruginous, the pleurae and metanotum paler, more yellowish in tint; the basai abdominal 

 segment yellow, the apical half of the centre rufous ; the ventral surface white, with the 

 usual black latéral spots; the apical 3 dorsal segments hâve the apices narrowly white; wings 

 hyaline, distinctly tinged with fuscous, the stigma and nervures black, the stigma at the base 

 runs parallel with the costa, then turns obliquely towards the récurrent; the transverse médian 

 is received shortly beyond the transverse basai ; the récurrent does not touch the transverse 

 cubital ; the anal nervure is not interstitial. The area on 2 nd abdominal segment triangular, 

 a little longer than it is wide at the base; it reaches to the middle; the keel is half its 

 length; on the sides, near the apex of the suturiform articulation, are 3 striae, the apical 



