Luminalia Scintillaris, named from Latin for 'of light' and 'sparkling', is a small bioluminescent butterfly with a wingspan up to 10 cm and weight under 2 g. It has translucent wings with visible veins, faint black borders, and a gradient from icy to deep blue, featuring a phosphorescent orange glow near the lower hindwing margins (420-490 nm emission). Its slender body bears long, curved antennae aiding sensory navigation during agile hovering flight. Endemic to tropical rainforest canopies at 10-20°C, it belongs to the Phosphorescent Morphidae cluster of 10 species, known for unique luminescence. Bioluminescence likely functions in communication, predator deterrence, and mate attraction, enhancing biodiversity and offering insights into evolutionary adaptation among phosphorescent insects.