“…Several host‐shift events among closely related species, as inferred from patterns of Wolbachia strain distributions on host phylogenies, support the PDE hypothesis, e.g. in weevils (Lachowska, Kajtoch, & Knutelski, 2010; Sanaei et al ., 2019), Trissolcus wasps (Guz et al ., 2012), and Drosophila (Haine, Pickup, & Cook, 2005; Turelli et al ., 2018). By contrast, in some case studies focused on certain arthropod families or genera, only a negligible part of the data, if any, appeared to indicate a PDE, e.g.…”