Labium-hypopharynx (dorsal aspect), SEM micrographs: A Oxyporus stygicus, B Megalopinus sanguinitriguttatus, C Solierius obscurus, D Dianous obliquenotatus, E Austroesthetus passerculus, F Euaesthetus iripennis, G Fenderia chandleri, H Agnosthaetus cariniceps, I Cephennodes clavatus, J Veraphis sp., K Palaeostigus bifoveolatus, L Scydmaenus sp., M Stenichnus sp., N Eutyphlops sp. — Abbreviations: gl = ‘glossa’, hph = hypopharynx, hph scl = hypopharynx sclerite, lp = labial palp, pgl = ‘paraglossa’, prm = prementum.