. Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum. Natural history. 542 Annals of the South African Museum. placed at the middle of the sides. Thorax long and narrow. The sides and front of the pronotum subvertical. Pro-mesonotal suture feeble in the smaller $ £, more distinct in the larger $ £, in which the mesonotum is somewhat tumid in front and clearly higher than the level of the pronotum. Declivity of the mesonotum short and oblicpie in the small $ ^ , longer and steeper in the larger $ $ . Meso- epinotal suture not deep; mesopleura feebly reticulate. Median tu
. Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum. Natural history. 542 Annals of the South African Museum. placed at the middle of the sides. Thorax long and narrow. The sides and front of the pronotum subvertical. Pro-mesonotal suture feeble in the smaller $ £, more distinct in the larger $ £, in which the mesonotum is somewhat tumid in front and clearly higher than the level of the pronotum. Declivity of the mesonotum short and oblicpie in the small $ ^ , longer and steeper in the larger $ $ . Meso- epinotal suture not deep; mesopleura feebly reticulate. Median tubercle of the mesonotum obsolete or nearly so. Dorsum of epinotum merging into the declivity by a very gradual curve, armed with two very short, suberect teeth, which are shorter than their basal width. First segment of petiole trapezoidal, a little longer than wide in front, the anterior angles widely rounded. Node of 2nd segment feebly emarginate behind and shallowly grooved longitudinally above, not so wide as the 1st segment. Abdomen elongate, two-thirds longer than Q minor Fig. 53.— C. nigronitens, Santsclii. Matoppo Hills, S. Rhodesia; nesting in the hollow and dead branches of a small shrub. A very distinct species, easily recognised by its polished integu- ment, elongate head, short scapes and minute epinotal teeth. Sub-genus OXYGYNE, Forel. Ann. Soc. Ent. Belg., vol. 45, p. 376,1901. " Distinguished in the $ by the more or less completely edentate mandibles which lack a masticatory margin ; by the rudimentary frontal carinae and by the aberrant and characteristic structure, whereas in the 9 $ of Cremastogaster, s. str., the structure varies but little and is not very characteristic of the ; Type of sub-genus, C. Emmae, Forel. In C. Daisyi, Forel, the £ £' also have no frontal carinae, and the mandibles are 4-dentate and very narrow, the epinotum with long spines, antennae 11-jointed. In some species the £ £ have the epinotum unarmed, an
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectnaturalhistory, booky
