“…Originally coined by Eichler (1966), its purpose was to distinguish between parasites that show geographic sympatry but live on different hosts, and those that share the same host species. Regenfuss (1968Regenfuss ( , 1972 used the term for Podapolipidae, and it has continued to be used for this group of mites (e.g., Husband et al 2008;Katlav et al 2014). A few other acarologists have employed the term (e.g., Desch & Nutting 1972;Bochkov & Mironov 2008), as have some other parasitologists (e.g., Holmes 1973;Shuttleworth et al 2016) and, more interestingly, it has been used by entomologists for drosophilid flies that breed in inflorescences (e.g., Yafuso 2008).…”