FIGURE 4 in Four new species of Plumachaetas Salmon (Collembola: Entomobryoidea) from Oceania with comments on the genus and a key to species

FIGURE 4. Symbols used to chaetotaxy schemes: A, pseudopore; B, specialised microchaeta (ms); C, specialised ordinary chaeta (sens); D, ordinary sensillum of antennal segments; E, accessory sensillum of Ant. III apical sense organ; F, posterior head spine-like chaetae; G, scale; H, bothriotrichum; I, microchaeta; J, mesochaeta; K, different shapes of macrochaetae.