Hymenoptera. 165 



of 1st abdominal segment with a straight stout central and a 

 thinner, more irregular keel on either side of it ; the lateral 

 depression is bordered on the outer side by a stout keel ; the 2nd 

 is longitudinally striated, more strongly and irregularly in the 

 centre ; the basal keel not clearly defined ; the basal two furrows 

 are wide, moderately deep ; the 3rd is narrower; all are closely 

 striated ; the 3rd, 1th and 5th segments have furrows, obscurely 

 striated, on the apex, that on the 5th being the wider. 



Iphiaulax whitei, sp. nov. 



Vermilion-red ; the antennae, occiput, front and vertex, 

 except narrowly along the eyes, the face to the clypeal depression, 

 the upper three-fourths of the temples, the upper edge of the pro- 

 thorax, narrowly in the centre, more broadly on the sides, tegulae, 

 an oblique mark immediately below them, the greater part of the 

 ventral surface of the abdomen and more or less of the 3rd and 

 1th dorsal transverse furrows, black. Wings fuscous, the greater 

 part of the 1st cubital cellule and the base of discoidal cellule 

 almost hyaline ; the base of the wings paler than the apex ; the 

 costa and stigma coloured like the body. Male and female. 



Length 13 mm. ; terebra 1 mm. 



Brak"Kloof Farm. March : Mrs. G. White. 



Front and vertex smooth, shining, not much depressed 

 furrowed in the middle ; face sparsely punctured ; there are 2 

 lai-ge dull red spots immediately below the antennae ; the occiput 

 covered with long black, the face with shorter fuscous, hair. 

 Thorax smooth and shining; parapsidal furrows indistinct. Central 

 lobe of petiole with stout, clearly separated longitudinal stride, 

 which do not reach to the apex, which, as well as the sides, are 

 smooth ; the 2nd, 3rd, and 1th segments are closely, strongly 

 longitudinally striated, their furrows more strongly striated, with 

 the striae more widely separated ; the 5th segment is obscurely 

 striated on the basal half ; the others smooth ; the last is paler 

 coloured ; its basal half becomes gradually, roundly narrowed; 

 the apical much narrower. There is no area on the base of the 

 2nd segment, but the 2nd is there more stoutly striated. The 

 nervures in the hind wings are black. 



Iphiaulax spilonotus, sp. nov. 



Vermilion-red, the head, except for 2 marks below the 

 antennae, the oral region and the inner orbits narrowly ; the apex 



