Orobitis cyanea mature larva, maxillolabial complex (SEM micrographs) A maxillolabial complex, ventral aspect B prementum, ventral aspect C apical part of distal maxillary palp D apical part of labial palpomere E, F surface of ligulae. Abbreviations: ds–digitiform sensillum, sa – sensillum ampullaceum, tra – terminal receptive area, setae: dms – dorsal malar, ligs – ligular, mbs – malar basiventral, mps – maxillary palp, pfs – palpiferal, prms – prelabial, pms – postlabial, stps – stipal, vms – ventral malar.