Adults are generally around 25–35 mm, with some specimens larger.
Fine-art photographic collection
Rhomborhina resplendens chatanayi
A Thai flower chafer whose shell can appear green, blue, gold or bronze without changing pigment.
About this species
Rhomborhina resplendens chatanayiBourgoin, 1916
Information reviewed17 July 2026
The gallery name Rhomborrhina chatanayi is an older standalone combination. The source set used here places it with Rhomborhina resplendens as the chatanayi geographic form or subspecies, a large mainland Southeast Asian flower chafer with intensely angle-dependent colour.
Taxonomy
Animalia · Arthropoda · Insecta · Coleoptera · Scarabaeidae · Cetoniinae · Rhomborhina
Current sources associate the gallery name Rhomborrhina chatanayi with Rhomborhina resplendens; this profile follows the resplendens form/subspecies treatment rather than a separate species. · checked 2026-07-17
Thailand and neighbouring mainland Southeast AsiaBroad mainland Southeast Asian range and representative anchors — not a complete occurrence map.
Thailand and neighbouring mainland Southeast Asia
Tropical forest, orchards and forest edge.
Day-active, strong-flying adult.
Ripe fruit, tree sap and other sugary plant fluids.
Solitary.
What makes this species remarkable?
Bourgoin named chatanayi in 1916 and the similar sapphirata in 1917; later catalogues brought those colour-rich names together.
The beetle’s colour is structural: microscopic layers in the cuticle redirect different wavelengths, allowing one shell to swing from green to blue or bronze.
The gallery label looks like a species name, but the accepted hierarchy used here nests chatanayi inside Rhomborhina resplendens — a visible example of taxonomy changing beneath a photograph.