Stratiolaelaps scimitus living in microhabitats (e.g., soil, humus and litter), is an important predatory mite (Zhang et al., 2022) used in biological control of pests, such as the thrips pupae (Satio and Brownbridge, 2016; Mouden et al., 2017), fungus gnat larvae (Castilho et al., 2009; Wen et al., 2017; Zhou et al., 2018) and snout moth eggs (Xie et al., 2018). It has been commercially produced (Knapp et al., 2018). However, commercial production of predatory mites inducing inbreeding is inevitable, which may lead to inbreeding inhibition and lower fitness of offspring (Slate et al., 2000), for example, the decline of vitality, fecundity, stress resistance, adaptability and retardation of growth.