2026年, 第51卷, 第4期　
刊出日期：2026-10-24

  

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研究论文
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  Molecular and morphological characterization of needle nematode Longidorus himalayensis Khan, 1987 and dagger nematode Xiphinema brevicolle Lordello & Costa, 1961 (Dorylaimida: Longigoridae) from Northeast China

  Sagir Hussain, Pingting Guan, Erum Iqbal, Nasira Kazi, Haotian Ma, Abdul Hafeez, Donghui Wu

  Zoological Systematics. 2026, 51(4): 245-258. https://doi.org/10.11865/zs.2026401

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  Two virus vector nematodes Longidorus himalayensis and Xiphinema brevicolle belonging to the family Longigoridae are first recorded from forest and cropland in the Northeast China. The new hosts of both speices are maize (Zea mays), pine (Pinus), Russian olive (Elaeagnus angustifolia), Chinese angelica tree (Aralia chinensis), pear (Pyrus communis), peach (Prunus persica), pink bean flower (Mirabilis jalapa), and Chinese crab apple (Malus baccata). Both morphological and morphometric analyses confirmed their identities. L. himalayensis showed slight differences from the type description, including longer body length (4.7–5.8 vs. 4.5–5.5 mm), longer odontostyle (122–125 vs. 107–120 μm), vulva position at 46–49% vs. 47–50%, and a shorter dorsally convex, bluntly rounded to hemispherical tail. X. brevicolle showed only minor deviations from previous descriptions. It is the first report of L. himalayensis with morphology and molecular data from China.
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  Two new species of the genus Homidia (Collembola: Entomobryidae) from Anhui and Hubei, China, with a supplementary description of H. cingula Börner, 1906

  Chengkai Wang, Jincheng Lu, Zhihong Zhan, Lei Tan, Yu Chen, Tongbin Zhu, Feng Zhang

  Zoological Systematics. 2026, 51(4): 259-279. https://doi.org/10.11865/zs.2026402

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  Two new species of the genus Homidia Börner, 1906 are described from Hubei and Anhui provinces, China. Both species resemble the type species H. cingula Börner, 1906 in color pattern, but are morphologically and molecularly distinct. H. qizimeiensis Wang, Lu & Zhang, sp. nov. is distinguished by a rectangular patch on the postero-middle of Th. III and the presence of macrochaetae (mac) m3a on Abd. II and a2 on Abd. III, which are absent in both H. cingula and H. bichaeta Wang, Lu & Zhang, sp. nov. H. bichaeta Wang, Lu & Zhang, sp. nov. is defined by a dark transverse band on the antero-middle of Th. III, the presence of only two posterior mac (B4 and B5) per side on Abd. IV, and 2+2 posterior smooth setae on the ventral tube. In comparison, H. cingula lacks the dark transverse band on Th. III and possesses 4–5 posterior mac (A5, A6, Ae7, B4, B5) per side on Abd. IV and 3+3 posterior smooth setae on the ventral tube. H. qizimeiensis Wang, Lu & Zhang, sp. nov. differs from H. bichaeta Wang, Lu & Zhang, sp. nov. by having four posterior mac (A5, A6, B4, B5) per side on Abd. IV and 3+3 posterior smooth setae. Comparative chaetotaxy combined with COI data supports the recognition of both new species.
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  Descriptions of the larvae of three Chinese species of the genus Blaps (Coleoptera: Tenebrionidae: Blaptinae)

  Baoyue Zhang, Kaifeng Wang, Xiumin Li, Saihong Dong

  Zoological Systematics. 2026, 51(4): 280-291. https://doi.org/10.11865/zs.2026403

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  Blaps is the most species-rich genus in the subtribe Blaptina, with 220 described species. In this study, we constructed a preliminary phylogenetic framework for 23 Blaps species inferred from a fragment of the mitochondrial COI gene. Based on the phylogenetic topology and the results of three molecular species delimitation analyses, three larval specimens are assessed for the adults. Additionally, the larvae of these three species are described and illustrated: Blaps (Ablapsis) apicecostata Bair, 1922, Blaps (Ablapsis) brevipes Seidlitz, 1893, and Blaps (Blaps) moerens Allard, 1880. A key to the known Blaps larvae is provided.
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  A morphological study on internal reproductive system of six Nephrotoma species (Diptera: Tipulidae)

  Qiulei Men, Pavel Starkevich, Sigitas Podenas

  Zoological Systematics. 2026, 51(4): 292-305. https://doi.org/10.11865/zs.2026404

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  The internal reproductive systems of six species of genus Nephrotoma Meigen, 1803 are described and illustrated. The paired spermathecae are discovered in N. bifusca, representing the first record of two spermathecae in the genus Nephrotoma and even in the family Tipulidae, where three spermathecae were previously considered constant. Morphological differences in internal reproductive organs among these species are documented. Additionally, the taxonomic potential of internal reproductive structures is analyzed and discussed.
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  Two new species of Systenus (Diptera: Dolichopodidae) from Chongqing, China

  Weimin Mei, Xulong Chen, Chen Lin, Zhonghua Wei, Ding Yang

  Zoological Systematics. 2026, 51(4): 306-311. https://doi.org/10.11865/zs.2026405

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  Systenus Macquart, 1823 is one rare genus in the subfamily Medeterinae with 45 known species distributed worldwide, of which seven species were known to occur in China. In the present paper, it is reported from Chongqing for the first time. Two species are described as new to science: S. chongqingensis Mei, Lin & Yang, sp. nov., S. zhangi Mei, Lin & Yang, sp. nov. A key to the species from the Oriental Region is provided.
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  Four new species of the genus Onesia (Diptera: Calliphoridae) from China

  Gang Yao, Shixin Liu, Jun Luo, Wenliang Li

  Zoological Systematics. 2026, 51(4): 312-327. https://doi.org/10.11865/zs.2026406

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  Four new species of the genus Onesia Robineau-Desvoidy (Diptera: Calliphoridae: Calliphorinae) are described here: O. huayangensis Yao, Liu & Li, sp. nov., O. wuyingensis Yao, Liu & Li, sp. nov., O. cheni Yao, Liu & Li, sp. nov. and O. shennongjiaensis Yao, Liu & Li, sp. nov. A key to species of Onesia from China is provided.
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  New taxa and nomenclatural changes: Volume 51

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  Zoological Systematics. 2026, 51(4): 328-330.

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  Zoological Systematics Contents: Volume 51

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  Zoological Systematics. 2026, 51(4): 331.

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