Comparative Analysis and Systematic Mapping of the Labial Sensilla in the Nepomorpha (Heteroptera: Insecta)

Figure 31

Types and sizes of the sensilla of the Diaprepocoridae and Micronectidae ((a)–(c) Diaprepocoris zealandiae, (d)–(f) Micronecta quadristrigata). (a) BD (no. 1−2.5) are spread evenly on the dorsal surface. (b) AT in magnification; PES or PAS2 are numerous and unevenly cover the tip. (c) Several of the CH1 are arranged on the lateral edge of the membranous labial tip (AT); the CH1 are placed on the lateral edge of the labium; the CH2 and CH3 are placed below the apex, on the ventral side. (d) BD (no. 1–4) are spread evenly on the dorsal surface; the CH1 are placed on the lateral edge of the labium. (e) BD in magnification, PES, RBS2, and PAS on the apex (AT). (f) The CH1 are numerous and situated below the apex (ventral view), the CH2 are situated in a short row below the CH1, and the CH3 are not numerous and placed below the CH2.