The Zoological Survey of India (ZSI) has announced the discovery of two new spider species and the first comprehensive taxonomic revision of Indian whip scorpions in more than 100 years. The findings, published in the international journal Zootaxa, underscore the significance of northeast India as a hotspot for rare and lesser-known species.
New Spider Species Discovered
A ZSI team identified two previously unknown spiders from the genus Psechrus, naming them Psechrus ntu and Psechrus phenshunyu after the villages in Nagaland where they were found. These arachnids are characterized by elongated bodies and large horizontal sheet webs that they weave in humid forest habitats. The researchers also recorded Psechrus himalayanus in northeast India for the first time. During the study, scientists observed a rare instance of a male P. himalayanus sharing a web with P. phenshunyu.
Taxonomic Revision of Whip Scorpions
The study marks the first major revision of Indian thelyphonids, commonly known as whip scorpions or ‘vinegaroons’, since the early 20th century. Unlike true scorpions, whip scorpions are non-venomous and defend themselves by spraying a vinegar-like acid from a whip-shaped tail. This research provides a crucial baseline for understanding and conserving these overlooked arachnids.
ZSI director Dhriti Banerjee said the study reflects the institution's focus on documenting "obscure faunal groups" that remain poorly understood. Senior scientist Dr. Souvik Sen added that the research bridges historical taxonomy and modern conservation, while providing a crucial baseline for protecting India's overlooked and cryptic inhabitants.
