Deltoxenos cf. bequaerti, female, cephalothorax, SEM micrographs A ventral side B dorsal side C mouthparts and base of prosternum, ventral side. Abbreviations: a – vestigial antenna, asI – abdominal segment I, bo – birth opening, cla – clypeal area, cll – clypeal lobe, dlf – dorsal field of labral area, lba – labial area, lehc – lateral extension of head capsule, md – mandible, mdc – mandibular capsule (clypeal origin), msn – mesonotum, mst – mesosternum, mtn – metanotum, mtst – metasternum, mx – vestige of maxilla (maxilla), os – mouth opening, pn – pronotum, pst – prosternum (prosternal extension), sI – abdominal sternite I, sbcl – segmental border between clypeus and labrum, ssf – supra-antennal sensillary field, sp – spiracle, vlf – ventral field of labral area.