Luminopteris Astraglare, derived from Latin for light and wing with star-like radiance, is a rare bioluminescent butterfly inhabiting tropical cave systems. It has delicate, translucent purple wings up to 10 cm with glowing red venation and a slender lightweight body (0-2 g) adapted for rhythmic gliding flight in dim habitats. Emitting blue-green bioluminescence (450-495 nm), it aids in communication and mate attraction. Thriving at 20-30°C, it belongs to Noctilucent Luminochirotera (Lepidoptera), a cluster of five glowing species. Its intricate wing venation supports aerodynamic efficiency in caves. L. Astraglare exemplifies subterranean lepidopteran biodiversity and bioluminescence evolution.