P. CAMERON. HYMENOPTERA. 243 



Length 10 mm.; terebra 4 mm. 



The furrow at the base of the scutellum bears 6 or 7 stout keels. The furrow at the 

 apex of mesopleurae and base of metapleurae stoutly crenulated, that on the former wider 

 than that on the latter. There is a keel on the lower part of the propleurae, above which 

 is a striated line. 



Rhogadini. 



Rhogas, Nées. 

 1. Rhogas fulvinervis sp. n. 



Bivak Island, January. 



Pallid testaceous, the thorax more rufous in tint, the mandibular teeth, antennal fiagellum 

 and the apical joint black; wings hyaline, the stigma, Costa and nervures rufo-fulvous, the 

 base of the stigma narrowly black, the base of the récurrent nervure triangularly dilated in 

 front the praebrachial before the transverse praebrachial and from there to the transverse 

 médian, the latter being triangularly longly dilated in front; the basai abscissa one third of 

 the length of the 2 nd . Smooth, shining, the face sparsely, the pleurae, metanotum and legs 

 densely covered with white pubescence. The metanotum is irregularly reticulated, less strongly 

 so at the base; the central keel is fine. Basai 2 abdominal segments rather strongly striated, 

 the striae distinctly separated ; the basai half of the 31'd more irregularly striated, the apex 

 punctured; the longitudinal keels on the basai 2 segments moderately stout, that on the 3 rd is 

 finer and hardly reaches to the middle. cf. 



Length S mm. 



Antennae as long as the body, the fiagellum densely pubescent; 65-jointed. Eyes large, 

 the malar space as long as the 2 nd joint of the fiagellum. Temples oblique. Occiput roundly 

 broadly incised. Parapsidal furrovvs indistinct. The radius issues from behind the middle of 

 the stigma; the transverse médian nervure is received shortly beyond the middle of the cellule. 



R. oculatus Szép. may be known from fulvinervis by the alar nervures and stigma 

 being black. Characteristic are the dilated alar nervures. 



Hecabolini. 

 Hecabolus, Curtis. 



1. Hecabolus quadricolor sp. n. 



Heuvel Bivak, 750 m., November. 



Black, a triangular mark on the hinder part of the front, touching the eyes, the part 

 between broadly roundly narrowed, the vertex, occiput, malar space and the sides of the 

 face below rufo-testaceous, the black part of the face broadly roundly narrowed below; the 

 mandibles black, the palpi testaceous; the pro-, mesothorax and the 4 front legs, except the 

 middle coxae, red; the abdomen black, the basai segment yellow, tinged with testaceous 

 above and below, except for a curved black mark in the centre of the apex above; the 2 nd 

 segment and the sides narrowly and the central keel similarly coloured; the hypopygium 

 white, broadly triangular. Wings fuscous, the stigma and basai nervures black, the radius, 

 cubitus and transverse cubital nervure fuscous. 9- 



