Deltoxenos cf. bequaerti, female, cephalothorax, SEM micrographs A clypeus and labrum, detail, ventral side B right mandible and maxilla, ventral side. Abbreviations: aamd – sclerotized mandibular membrane, cll – clypeal lobe, cls – clypeal sensillum, dlf – dorsal field of labral area, lc – labial corner, ls – labral seta in cavity (spine-shaped sensilla), md – mandible, mdb – mandibular bulge, mdbs – sensillum of mandibular bulge, mdc – mandibular capsule (clypeal origin), mdt – mandibular tooth, mdts – spine of mandibular tooth, mx – vestige of maxilla (maxilla), mxb – maxillary base (at mandible base), mxp – vestige of maxillary palp, sbcl – segmental border between clypeus and labrum, vlf – ventral field of labral area.