Thanks are due to Atul Kumar Gupta (PCCF & CWLW, Member Secretary, Tripura Biodiversity Board) and Ajith Kumar (NCBS) for initiating the Tripura biodiversity surveys. This work was in collaboration with the Tripura Biodiversity Board, which facilitated and funded this project. Survey and collection permits [No.F.8.(163)/For-WL-2012/Part/38802-08] were granted by the Principal Chief Conservator of Forests, Department of Forest, Government of Tripura. Forest department staff at Kanchanpur and Manu Forest Divisions provided logistical support. The voucher specimen is deposited in the research collections of the National Centre for Biological Sciences, Bangalore. Special thanks to Ajith Kumar and Atul Kumar Gupta for comments on the manuscript. Zeeshan Mirza was supported by a generous grant from the Rufford Small Grant (14300-1). We acknowledge the Electron Microscopy Facility at NCBS for help with SEM imaging of the type specimen.