Deltoxenos cf. bequaerti, female, cephalothorax, SEM micrographs A anterior part of cephalothorax, dorsal side B vestigial antenna, dorsal side. Abbreviations: a – vestigial antenna, cll – clypeal lobe, cra – cavity of vestigial antenna, fr – frontal region, msn – mesonotum, occ – occipital area, paa – periantennal area, pn – pronotum, pra – plate of vestigial antenna, sbhp – segmental border between head and prothorax, sbpm – segmental border between prothorax and mesothorax, sra – sensillum of vestigial antenna, ssf – supra-antennal sensillary field, sssf – sensillum of supra-antennal sensillary field.