The anteriodorsal area of the petiolar node that is oriented anterodorsally and is delimited posteriorly by a dorsally or posterodorsally orineted area.
written by: Csősz, S., J. Heinze, and I. Mikó. 2015. Taxonomic Synopsis of the Ponto-Mediterranean Ants of Temnothorax nylanderi Species-Group. PLoS ONE 10:e0140000.