210 
Annals of the Transvaal Museum. 
Macrocentrinae. 
Macrocentrus luteus, sp. n. 
Luteous ; the flagellum of antennae, stemmaticum, and the tips of 
the mandibles black, the antennal scape darker coloured than the head ; 
the hind tibiae black, except at the base, the tarsi infuscated ; wings 
hyaline, the stigma and nervures black, the parastigma pale ; the first 
abscissa of radius half the length of the second ; the first transverse 
cubital nervure one-third longer than the second ; the second abscissa of 
cubitus and the radius in the hind wings roundly curved. Mesonotum 
distinctly tribolate, the furrows crenulated ; there is a wide, transversely 
striated band between the middle lobe and the base of scutellum. Smooth 
and shining, the face closely punctured, more weakly and sparsely on the 
sides than in the centre. Male. 
Length, 10 mm. 
Doornfontein (Pretoria District). January. 
The antennae are slender and about one-half longer than the body.. 
The long spur of the hind tibiae is about half the length of the metatarsus. 
The transverse median nervure is not quite interstitial, being received 
very shortly beyond the transverse basal. 
Macrocentrus pallidistigmas, sp. n. 
Luteous ; the stemmaticum and apical half of mandibles black, the 
antennal scape luteous, the basal half of flagellum fuscous, the apical black ; 
wings hyaline, the stigma and parastigma pallid livid testaceous, the costa 
testaceous, the nervures black ; the first abscissa of the radius nearly 
two-thirds of the length of the second, and shorter than the first transverse 
cubital ; the two transverse cubital nervures and the third abscissa of 
the cubitus are largely bullated ; the latter is roundly curved, as is also 
the radius in the hind wings on the basal half. Male. 
Length, 9 mm. 
Rietfontein No. 57 (Pretoria District). February. 
The sides of the front are obscurely striated ; the face is finely closely 
punctured. Mesonotum smooth, the furrows obscurely crenulated. Meta- 
notum closely punctured, the punctures on the apical half running into 
reticulations. Propleurae smooth at the base, the rest for the most part 
rather strongly punctured ; the mesopleurae closely but not so strongly 
punctured ; the metapleurae more strongly and more irregularly punctured. 
Macrocentrus latisulcatus, sp. n. 
Luteous ; the legs at the base paler ; the stemmaticum and mandibular 
teeth black ; the antennae fuscous, the basal third luteous ; wings hyaline ; 
the basal half of stigma pale, the apical fuscous, the nervures black, the 
first abscissa of the radius slightly but distinctly longer than the second. 
Parapsidal furrows smooth. Metanotum opaque, finely transversely 
striated, more strongly on the apical half ; the metapleural furrow wide, 
narrowed at the base, stoutly, widely crenulated. First abdominal seg- 
ment and the base of the second finely, closely striated. Propleurae 
sparsely, weakly punctured, the furrow regularly striated ; the mesopleurae 
