Figure 4. Serroderus trinacriae n in On some Collembola from a Sicily cave, with the description of a new species of Serroderus Delamare, 1948 (Collembola, Cyphoderidae)

Figure 4. Serroderus trinacriae n. sp. (A) Chaetotaxy of the dens; (B) spines on the basal inner side of the dens; (C) clasping organ of the furca; (D) retinacle showing four teeth; (E) shape of the mucro; (F) trochanteral organ; (G) outer maxillary lobe; (H) ventral tube anterior part; (I) ventral tube posterior part; (K) schematic distribution of the dorsal trichobotria.