Tetrastichus narayandebnathi (Hymenoptera: Eulophidae: Tetrastichinae), a new species of parasitoid wasp associated with a tortoise beetle (Coleoptera: Chrysomelidae: Cassidinae) from India
摘要
The present study describes a new species of parasitoid wasp, Tetrastichus narayandebnathi Gadallah, Chakrovorty & Bhattacharjee (Hymenoptera: Eulophidae: Tetrastichinae: Tetrastichini) from the Rajarhat wetlands of Kolkata, West Bengal, India. The new species is recorded as a gregarious primary parasitoid of a tortoise beetle pupa (Coleoptera: Chrysomelidae: Cassidinae). Among more than 500 known species worldwide, this represents only the third account of the genus Tetrastichus Haliday, 1844 as a parasitoid of Cassidinae, and only the second report from India among 86 valid Indian species. Morphometric data, high-resolution light microscope images, and wing light interference image with RGB values are provided. The new species closely resembles T. tunicus Narendran, 1989, but differs in body morphometrics, leg coloration, and hypopygium length.
Graphical abstract