Four Spider Species Added in Northeast India.

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ZSI scientists have discovered two entirely new spider species and documented two more for the first time in India, all found in the forests of Northeast India.

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The new species Psechrus chizami was named after its discovery location in Nagaland, while Psechrus nathanael honors a supporter of the research team's fieldwork.

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These web-building spiders create distinctive dome-shaped sheet webs with tube retreats in rock crevices and tree roots, adding to the seven Psechrus species now known in India.

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Wolf spider Pardosa tuberosa, found in Meghalaya's Anderson Tea Estate, serves as a natural warning system for environmental health due to its sensitivity to habitat changes.

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Jumping spider Thiania abdominalis, with its creamy yellow abdomen marked by bold black bands, hunts by sight rather than building webs and helps control pest populations.

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This reflects the largely untapped potential for biodiversity research in these areas," said lead researcher Dr. Souvik Sen about the discoveries published in Zootaxa journal.

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ZSI Director Dr. Dhriti Banerjee called the findings "just the beginning," noting that Northeast India's status as a global biodiversity hotspot means many more species likely await discovery.

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Scientists warn that inadequate sampling across India means many spider species may remain undiscovered, emphasizing the urgent need to preserve these ecosystems.

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