Vol. 739 (2021)

Research article

• A revision of Onychelmis Hinton, 1941 (Coleoptera: Elmidae), with description of new species, DNA barcoding and notes on the geography of the genus

  Marek Linský, Zuzana Čiamporová-Zaťovičová, Fedor Čiampor Jr

  1-35

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• Taxonomic revision of the Afrotropical scarab beetle genus Cerhomalus Quedenfeldt, 1884 (Coleoptera: Scarabaeidae: Orphninae)

  Andrey V. Frolov, Lilia A. Akhmetova

  36–50

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• Review of Odontoscelio Kieffer, 1905 (Platygastroidea, Scelionidae) with the description of two new species from India

  Kamalanathan Veenakumari, Prashanth Mohanraj

  51-91

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• Morphological and molecular analysis of Willowsia nigromaculata (Collembola, Entomobryidae, Entomobryinae) reveals a new cryptic species from the United States

  Nikolas G. Cipola, Aron D. Katz

  92-116

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• Revision of the elusive ant genus Rhopalomastix (Hymenoptera, Formicidae, Myrmicinae) in Thailand based on morphology and DNA barcodes, with descriptions of three new species

  Wendy Y. Wang, Gordon W.J. Yong, Weeyawat Jaitrong

  117–157

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• Gibbosaverruca weijiai, a new verrucid (Crustacea, Thoracica) species from the Weijia Guyot deep-sea seamount in the West Pacific

  Zhibin Gan, Dongsheng Zhang, Xinzheng Li, Chunsheng Wang

  158-167

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• Six new species of the genus Caccothryptus from the Himalayas (Coleoptera: Limnichidae)

  Keita Matsumoto

  168–184

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