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| Gilen principissa Chansri, Kerkig, Reshchikov, Quicke, Puengchanchaikul & Butcher, 2025 |
Abstract
A new species of the genus Gilen Reshchikov & van Achterberg, 2018 (Hymenoptera, Ichneumonidae, Ctenopelmatinae), G. principissa Chansri, Kerkig & Reshchikov, sp. nov., from Thailand is described and illustrated based on female specimens collected with Malaise traps. A molecular phylogenetic tree is presented based on DNA barcode sequences of representative Ctenopelmatinae, including sequences from both known Gilen species. The new species was recovered as sister to G. orientalis Reshchikov & van Achterberg, 2018 with 100% bootstrap support, but on a long branch. Comparison of the sequences revealed that they differ at 88 positions out of 658 (13.4%) possibly indicating that their lineages diverged between six and 13 million years ago.
Keywords: facial projection, key to species, Khao Yai National Park, new species, Perilissini
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| Light micrographs of Gilen principissa sp. nov., holotype female A habitus, lateral view, B head, lateral view C face, anterior view D head, ventral view. |
Kittipum Chansri, Pornthap Kerkig, Alexey Reshchikov, Donald Quicke, Voranan Puengchanchaikul and Buntika Areekul Butcher. 2025. A Second Unicorn Darwin Wasp Species Gilen principissa sp. nov. (Hymenoptera: Ichneumonidae, Ctenopelmatinae) from Thailand. Tropical Natural History. Suppl. 8; 324-333. DOI: doi.org/10.58837/tnh.25.8.266788 [2025-10-20]
