First confirmed locality report of Xenerianthus affinis (Westwood, 1843) (Insecta: Orthoptera: Chorotypidae) from Assam

Xenerianthus affinis (Westwood, 1843) was originally described from “Assam,” however, the absence of a precise locality, coupled with subsequent geopolitical changes, has rendered its occurrence in present‑day Assam uncertain. The present study provides the first confirmed, voucher-based record of the species from Assam based on specimens collected in 2025 from Garbhanga Reserve Forest, Kamrup (Metropolitan) district. A total of three specimens (two males and one female) were collected, preserved, and identified through detailed morphological examination using standard taxonomic keys and literature. Diagnostic characters and morphometric analyses confirmed the identity of the species. Earlier reports from Assam, particularly those linked to Sylhet during the British colonial period, are biogeographically ambiguous and therefore cannot be regarded as reliable evidence of its presence within the current administrative boundaries of the state. This record resolves a long-standing distributional uncertainty and confirms the presence of X. affinis in Assam, contributing to a clearer understanding of its range in northeastern India.