Taxonomy of Foenobethylus Kieffer (Hymenoptera, Bethylidae) with description of two new species

• We describe and illustrate two species of Foenobethylus.
• New combination: Foenobethylus thaianus comb. nov. from Parascleroderma
• An update world key to the species of Foenobethylus is provided.

The genus Foenobethylus Kieffer from Southeastern Asia is studied, and seven species are recognized. Four previously described species are analyzed and had their known distribution broadened: F. gracilis Kieffer, F. elongatus Várkonyi and Polaszek, F. emiliacasellae Várkonyi and Polaszek, and F. thomascokeri Várkonyi and Polaszek. Two new species are described and illustrated, F. sharkeyi sp. nov. is characterized by having the metatrochanter without spine and the metafemur with acute proximal spine; and F. pyramidis sp. nov. is characterized by having the metatrochanter with one spine and the metafemur with two spines. The following new combination is established: F. thaianus comb. nov. from Parascleroderma because it has the metafemur with two proximal spines. An update world key to the species of genus is provided.

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