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Keywords = Opheliminae

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17 pages, 22438 KB  
Article
Two New Chalcid Wasps (Hymenoptera: Eulophidae and Megastigmidae) Are Parasitoids of Ophelimus bipolaris (Hymenoptera: Eulophidae) on Eucalyptus in China
by Jin-Bo Sun, Guo-Bao Qin, Jian-Zhong Ning, Yan Qin, Jun Li, Zoya Yefremova and Xia-Lin Zheng
Insects 2026, 17(5), 449; https://doi.org/10.3390/insects17050449 - 24 Apr 2026
Viewed by 386
Abstract
Two new species, Aprostocetus eucalyptus Zheng & Yefremova sp. nov. (Hymenoptera: Eulophidae) and Megastigmus bipolaris Zheng & Yefremova sp. nov. (Hymenoptera: Megastigmidae), were discovered on populations of the invasive gall wasp Ophelimus bipolaris (Hymenoptera: Eulophidae) infesting Eucalyptus in Guangxi, China. An integrative taxonomic [...] Read more.
Two new species, Aprostocetus eucalyptus Zheng & Yefremova sp. nov. (Hymenoptera: Eulophidae) and Megastigmus bipolaris Zheng & Yefremova sp. nov. (Hymenoptera: Megastigmidae), were discovered on populations of the invasive gall wasp Ophelimus bipolaris (Hymenoptera: Eulophidae) infesting Eucalyptus in Guangxi, China. An integrative taxonomic approach combining morphological characterization and 28S rRNA-based phylogenetic analysis was used for species identification and classification. Detailed morphological descriptions, illustrations, and an identification key for both sexes are provided. Field parasitism data confirm their potential as native natural enemies, supporting their utility for the biological control of this economically important pest. Full article
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15 pages, 5647 KB  
Article
A New Species of Aprostocetus (Hymenoptera: Eulophidae), a Parasitoid from China of the Invasive Gall Wasp Ophelimus bipolaris (Hymenoptera: Eulophidae) on Eucalyptus
by Jing-Hui Su, Yuan-Hao Li, Jin Hu, Yan Qin, Jun Li, Zoya Yefremova and Xia-Lin Zheng
Insects 2025, 16(8), 755; https://doi.org/10.3390/insects16080755 - 23 Jul 2025
Cited by 1 | Viewed by 2254
Abstract
A new species of Aprostocetus (Hymenoptera: Eulophidae), Aprostocetus bipolaris sp. nov., is recognized to be fortuitously present on a population of the invasive Eucalyptus (E. grandis × E. urophylla) gall wasp Ophelimus bipolaris Chen & Yao, in Guangxi, China. To classify [...] Read more.
A new species of Aprostocetus (Hymenoptera: Eulophidae), Aprostocetus bipolaris sp. nov., is recognized to be fortuitously present on a population of the invasive Eucalyptus (E. grandis × E. urophylla) gall wasp Ophelimus bipolaris Chen & Yao, in Guangxi, China. To classify this species, an integrated approach of morphological characteristics and molecular data was applied. The morphology of the new species is described and illustrated, and an identification key for female and male adults is also presented. Regarding phylogenetic analyses, the position of A. bipolaris sp. nov. within the Aprostocetus group of genera was reaffirmed based on 28S and COI gene sequences. All these lines of evidence indicate that A. bipolaris sp. nov. is a new species. Full article
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