March 3, 2026Open Access

Revisiting Nesaulax Roman (Hymenoptera, Braconidae, Braconinae), with description of a new species from China

Puntos clave

Four Nesaulax specimens from Thailand, Malaysia, and India match our newly described species based on genetic results.
A new species, Nesaulax protuberator, is described and illustrated, expanding understanding of this genus.
Genetic analysis is performed using the BOLD system to ascertain species relationships and characteristics.
This findings emphasize the biodiversity of the genus Nesaulax and underscore the need for more taxonomic research.

Resumen

The genus Nesaulax Roman, 1914 (Hymenoptera, Braconidae, Braconinae) is reported from China for the first time, and a new species (Nesaulax protuberator Li & van Achterberg, sp. nov.) is described and illustrated. Our pairwise genetic results indicated that four Nesaulax specimens from Thailand, Malaysia, and India in the BOLD system are conspecific with our newly described species. In addition, we report a new synonym: Nesaulax gracilis (Enderlein, 1920) syn. nov. of N. pravivena (Enderlein, 1920). A key to the species of the genus Nesaulax is provided for the first time.

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