This image is a close-up of a group of Lappet moth caterpillars (Metanastria gemella) on a tree in Aberdeen Country Park in Hong Kong. Despite their relatively small size (up to 7 cm), these caterpillars can be harmful to humans through the use of an irritant chemical that is released when their bristles or hairs are triggered. This can cause allergic reactions such as a rash, blistering, or even nausea.

This photo was taken to add an observation of Hong Kong biodiversity on iNaturalist in December 2023. iNaturalist is a social network of naturalists, citizen scientists, and biologists built on the concept of mapping and sharing observations of biodiversity across the globe. Every observation can contribute to biodiversity science.

Dr Safaya is carrying out a postdoctoral fellowship at the Environmental Sustainability Academy, University of York.