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The Chinese species of the genus Sericocampsomeris Betrem, 1941 are revised, based on morphology. Four species are recognised, of which one species is described as new, i.e. Sericocampsomeris punctata Liu & Chen, sp. nov., for which we also provide molecular sequence data to supplement its identity. A key to species of Sericocampsomeris from China and a distribution map are provided. Furthermore, we identify Sericocampsomeris punctata Liu & Chen, sp. nov. as a pollinator of Elaeocarpus sp. (Elaeocarpaceae) and recognise Leucopholis rorida (Fabricius, 1801) as a host of Sericocampsomeris rubromaculata (Smith, 1855).

Species of the genus Foenobethylus Kieffer, 1913 are parasitoids wasps rarely collected and are only found in the Oriental region. In this study, based on both morphological and molecular evidence, we describe three new species from China: F. robusta Li & Chen, sp. nov., F. xinglongsensis Wang & Chen, sp. nov., and F. yunkaishanensis Chen & Luo, sp. nov. An updated key to species of the genus is provided. Additionally, the phylogenetic relationships between Foenobethylus and other three morphologically similar genera are discussed based on the analyses of COI and 28S genes.

Corrigendum: Integrated taxonomy unveils three new species of Foenobethylus (Hymenoptera, Bethylidae) from China. Journal of Hymenoptera Research 89: 89–108. https://doi.org/10.3897/jhr.89.78856

The genus Ismarus Haliday from China is revised. Six species are recognized, of which two species are described as new: Ismarus areolatus Chen, sp. nov., and Ismarus paradorsiger Chen, sp. nov. By examining the pits along the anterolateral margin of mesoscutum and comparing them with the typical notauli in Diapriidae, we conclude that the so-called reduced notauli in Ismarus are actually foveae of the mesoscutual suprahumeral sulcus. An updated key to the Chinese species of the genus is provided.