Fig. 8
Semi-schematic reconstruction of a peg-shaped sensillum located on the second (distal) antennomere close to the scape organ of Scutigera coleoptrata based on TEM analysis. ax, receptor cell axon; ds, dendritic sheath; encu, endocuticle; epc, interstitial epidermal cell; epcu, epicuticle; excu, exocuticle; gc, glial cell; isl, inner sensillum lymph space; lod, long dendritic outer segments; rc1, receptor cell with long dendritic outer segments; rc2, receptor cell with short dendritic outer segments (scolopidial receptor); sco, scolopale-like structure; sod, short dendritic outer segments; shc1, first (proximal) sheath cell (scolopale cell); shc2, second (median) sheath cell; shc3, third (distal) sheath cell; tb, tubular bodies of short dendritic outer segments; tde, terminal structures of long dendritic outer segments resembling tubular bodies