A previously unknown butterfly species, Euthalia (Limbusa) zubeengargi, has been discovered in the forests of Arunachal Pradesh and named in honor of Assamese singer Zubeen Garg. This species was found in the Basar region of Leparada district, which is recognized as a biodiversity hotspot that remains largely unexplored in Northeast India. The discovery, published in the peer-reviewed journal Entomon by researchers Roshan Upadhaya and Kalesh Sadasivan during field surveys in 2025, reflects the scientific significance of the region’s biodiversity while paying tribute to a beloved cultural figure.
The butterfly was observed in semi-evergreen forests at altitudes between 600 and 750 meters. Remarkably, only two male specimens were recorded during extensive surveys: one was collected, and another was photographed in its habitat, indicating the species’ rarity. Named “Basar Duke” after its discovery location, its limited sightings indicate a likely localized population or natural scarcity. Despite targeted surveys, no additional individuals were located, prompting important questions about the butterfly’s population size and conservation status as its unique habitat is vulnerable to environmental changes in the Eastern Himalayas.
This finding enriches the known biodiversity in Northeast India, already a global biodiversity hotspot with over 80 species registered in the Euthalia genus alone. Researchers emphasize the ecological richness of Arunachal Pradesh and the urgent need for conservation initiatives, spotlighting the vast unknown aspects of its flora and fauna. The butterfly’s life cycle, including breeding patterns and host plants, remains unstudied, presenting opportunities for further research.
Characteristically, Euthalia zubeengargi has olive-brown wings with white patterns and a turquoise-green underside, which sets it apart morphologically from similar species. Such distinctions are vital for butterfly taxonomy, aiding in the classification of closely related species. The butterfly is believed to thrive in cool, shaded forest interiors rich in dense vegetation. Observations show it resting on low plants in the understory and feeding on tree sap while occasionally gathering nutrients from damp soil or stream edges. Its activity peaks from late morning to early afternoon, characterized by slow, short flights between nearby plants.
The name “zubeengargi” is a Latinized form of Zubeen Garg’s name, used in the masculine genitive case, meaning “of Zubeen Garg.” This naming demonstrates the admiration of the scientific community, nature lovers, and local residents for Garg’s legacy. Garg’s wife, Garima Saikia Garg, expressed her emotional response to this honor, conveying joy at her husband’s legacy intertwining with nature.
