none Associations; Parasites diseases and disorders; Parasites; Insect parasites; Hosts; Insect hosts; Ecology; Land and freshwater zones; Palaearctic region Achroia grisella; Achroia innotata obscurevittella; Galleria mellonella (Pyralidae ); Commensalism; Host commensal relationship; Nest and burrow fauna; Apis cerana japonica & A. mellifera (Hymenoptera); Hymenopteran parasites; Apanteles galleriae; Host parasite relationships; Apanteles galleriae (Hymenoptera); Ecology; Japan; Biology & ecology, comparative study, hymenopteran commensal hosts Apanteles galleriae (Braconidae); Lepidopteran hosts; Achroia & Galleria; Host parasite relationships; Achroia & Galleria (Lepidoptera); Japan Apis cerana japonica; Apis mellifera (Apoidea ); Commensalism; Host commensal relationships; Nest and burrow fauna; Achroia & Galleria (Lepidoptera); Commensal biology & ecology, comparative study; Japan; Lepidopteran nest inhabiting commensals, comparative biology