See images for examples. Elderwood: Cave Piksiis spawn *only* in caves Bahari: Bahari Glowbug spawns *only* in southern Bahari (except the beach) Kilima: Duskwing butterfly spawns *only* in Maji's Hollow area This seems to be the case no matter which bugs filters are enabled, and is true both in the app and on the website, as well as when using search (as opposed to filters).