Luminoptera Scintilla, named for its light-emitting wings, is a rare bioluminescent butterfly with a wingspan up to 10 cm and body under 2 g. Its translucent, membranous wings exhibit blue-green bioluminescence (420-490 nm) from photocytes, producing an ethereal glow aiding nocturnal communication and mate attraction in tropical cave habitats. Endemic to cool (10-20°C) cave microhabitats with calcium-rich substrates, it features a slender body and elongated antennae adapted for subterranean life. Taxonomically within the Aurorae Lepidoptera cluster of 20 species, L. Scintilla’s unique light emission expands knowledge of lepidopteran bioluminescence and underscores the need to conserve its fragile ecosystem.