Endangered and exceptional: Discovery of new insect species highlights Kosovo biodiversity hotspot

A new species of caddisfly, Tinodes lumbardhi, was found in a sidestream of the Lumbardhi i Deçanit River in Kosovo’s Bjeshkët e Nemuna National Park. The discovery, made by Professor Halil Ibrahimi of the University of Prishtina and his research team, underscores the region’s high biodiversity and urgent need for conservation.

The aquatic insect is small, with its wings less than 5 mm long. Its name, “lumbardhi,” honors the local Albanian name for the river, meaning “the white river.”

“The discovery of Tinodes lumbardhi is both a celebration of Kosovo’s unique natural heritage and a wake-up call for conservation,” said Professor Halil Ibrahimi. “The survival of these species depends on our ability to protect their fragile habitats.”

Hosting several rare and endemic species, Bjeshkët e Nemuna, a mountainous region in western Kosovo, is a hotspot for caddisfly diversity. Despite this richness, however, Kosovo’s freshwater ecosystems face escalating threats from human activities. Hydropower development, pollution, and water extraction have severely degraded habitats like the Lumbardhi i Deçanit River, leading in some areas to impoverished insect communities and an alarming absence of fish. Sidestreams like the one where T. lumbardhi was found serve as critical refuges for rare species but remain vulnerable to environmental pressures.

Caddisflies, known for their sensitivity to environmental changes, are key bioindicators of freshwater ecosystem health. These small insects are not only vital for biodiversity but also for maintaining ecological stability in the face of threats such as climate change and habitat destruction.

Kosovo’s caddisfly fauna has seen significant advancements in recent years, with contributions from Ibrahimi and his team shedding light on the region’s ecological treasures. Their work has revealed species such as Potamophylax kosovaensis and Potamophylax coronavirus, emphasizing the importance of ongoing research and conservation efforts.

The discovery of Tinodes lumbardhi adds to the growing recognition of Bjeshkët e Nemuna as a biodiversity hotspot of international significance. In their research paper, published in Biodiversity Data Journal, the researchers call for urgent targeted conservation measures to mitigate the impacts of hydropower development and other anthropogenic threats in the region. “Protecting these rare species and their habitats is not only a moral imperative but also a crucial step toward sustaining the ecological integrity of Kosovo’s freshwater systems,” says Halil Ibrahimi in conclusion.

Original source:

Ibrahimi H, Bilalli A, Musliu M, Geci D, Grapci Kotori L (2025) Tinodes lumbardhi sp. nov. (Trichoptera, Psychomyiidae), a new species from the Lumbardhi i Deçanit River in Kosovo. Biodiversity Data Journal 13: e143104. https://doi.org/10.3897/BDJ.13.e143104