Detailed Notes
The discovery was made by researchers Roshan Upadhaya and Kalesh Sadasivan, and their findings were published in the scientific journal Entomon. The butterfly belongs to the genus Euthalia, commonly referred to as “dukes,” and falls under the Limbusa subgenus and Patala group. The species stands out due to its unique physical and anatomical characteristics, which clearly distinguish it from other closely related butterflies.
One of the most notable features of Euthalia (Limbusa) zubeengargi is its appearance. It has deep olive-brown upper wings decorated with distinctive white markings, while its underside displays a pale turquoise-green shade. These features help it blend effectively into the cool, shaded environments of semi-evergreen forests, making it difficult to detect in the wild.
The butterfly inhabits humid forest understories at elevations between 600 and 750 metres. It exhibits behaviors such as feeding on tree sap, mud-puddling near streams to absorb minerals, and resting on low vegetation along forest trails. These ecological traits are typical of forest-dwelling butterfly species.
Despite extensive surveys, researchers were able to record only two individuals of this species. This extremely limited observation suggests that the butterfly may either be very rare or naturally elusive due to its habitat preferences and camouflage abilities. This has raised concerns among scientists regarding its conservation status and the need for further exploration.
The species has been named in honor of renowned Assamese singer Zubeen Garg, reflecting a unique blend of science and cultural recognition. It is also proposed to be commonly known as the "Basar Duke," linking it to the location where it was discovered.
In addition to this discovery, researchers have also confirmed the presence of Euthalia malaccana in Arunachal Pradesh for the first time, resolving a long-standing scientific mystery about its distribution in the Indian subcontinent.
Overall, the identification of Euthalia (Limbusa) zubeengargi highlights the immense biodiversity of Northeast India and emphasizes the importance of continued research and conservation efforts in the region. It serves as a reminder that many species are yet to be discovered in India’s forests, making scientific exploration more crucial than ever.