367 



especially towards the apex; more than the apical half of the 

 antennse brownish red; wings fuscous violaceous, the stigma and 

 nervures black; the 2 Ild and 3 rd abscissee of the radius equal in 

 length; the transverse médian nervure interstitial, the récurrent 

 nervure almost so. l st abdominal segment smooth, a strong keel 

 down the middJe, with a shorter, less distinct one on either side; the 

 2 nd segment strongly striated, a keel down the centre, its base 

 forming a small, smooth, almost semicircular plate; the 2 Qd broadly, 

 more finely striated on the basai half, this striated part bordered 

 laterally by an oblique, oval dépression. Suturiform articulation 

 closely crenulated and without a latéral branch; it is the only 

 transverse furrow. rf . 



Length 14 mill. 



Dima, 4 Ul September (A. Koller). 



Temples broad, rounded, as long as the eyes, the occiput trans- 

 verse. In the centre of the lower half of the face is an area bounded 

 above by a broad transverse keel, laterally by a narrower one which 

 curves outwardly below to the outer edge of the clypeus. 



Iphiaulax tincticanaliculatus sp. n. — Black, the thorax 

 and 4 front legs red; the oral région, the mandibles, except the 

 apex, malar space and lower third of outer orbits, yellow, slightly 

 tinged with rufous, the black lower part of the outer orbits projec- 

 ting downwards in the middle; a narrow, yellowish line round the 

 top of the eyes; pal pi pallid yellow; the centre of the l st abdominal 

 segment broadly and the furrows rufous; wings fuscous violaceous, 

 the stigma and nervures black the 3 rd abscissa of radius slightly 

 longer than the2 nd ; the récurrent nervure interstitial. l st abdominal 

 segment smooth ; the 2 nd closely, distinctly, but not very strongly 

 striated between the outer dépression, the 3 rd more finely and 

 closely striated, the striée not reaching to the latéral dépressions; 

 there are distinct crenulated furrows on the base and apex of the 

 2 Qd to 5 th abdominal segments, the basai on the 2 nd to 4 th with apical 

 latéral branches ; there is no keel or area on the base of the 2 Qd seg- 

 ment. Ç. 



Length 22 mill.; terebra 27 mill. 



Lukombe, 16 th October (A. Koller). 



Face opaque, aciculated, sparsely haired; the clypeus above mar- 

 gined by a fine keel. Mesonotum flat from the basai slope; without 

 any indication of furrows. Temples broad, roundly obliquely nar- 

 rowed. Sheath of ovipositor bare. The middle tibire and tarsi are 

 infuscated. The black ventral marks are large. 



