Fig. 8
From: Under pressure: force resistance measurements in box mites (Actinotrichida, Oribatida)
Comparison of body form (represented by cross-sections) of Euphthiracaroidea (a) and Phthiracaroidea (b) with schematic mandibles of the predatory staphylinid beetle Othius punctulatus. The dotted circle indicates the fulcrum of the predator mandibles (in brown). Arrows in upper part indicate the movement (and force) of the closing predator mandibles. The arrows in the lower part indicate the resulting force on the mite body. Blue, notogaster; red, ventral plates; yellow, plicature plates in a and anogenital membrane in b