Two new flightless click beetle species, Pseudocsikiachoui sp. nov. and Pseudocsikiachanjuan sp. nov., are described and illustrated from Taiwan, China. Their habitus and diagnostic characters are illustrated. The two species most resemble P.formosana, which is endemic to Taiwan, by the strongly protruding pronotal anterior angles accompanied by pits and the shape of aedeagus. They can be all grouped as the P.formosana-species group. A key to the species of the P.formosana-species group and an updated checklist of Chinese Pseudocsikia with supplementary notes on type localities are provided. The discovery of two new species highlights the potential species-richness of the flightless click-beetles on Taiwan Island.

Department of Zoology Faculty of Science Palacky University 17 listopadu 50 77146 Olomouc Czech Republic Palacky University Olomouc Czech Republic

Engineering Research Center for Forest and Grassland Disaster Prevention and Reduction Mianyang Normal University Mianxing West Road 621000 Mianyang China Mianyang Normal University Mianyang China

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Bouwer R. (1991) Beschreibung einer neuen Csikia-Art von Sumatra (Coleoptera: Elateridae). Entomologische Zeitschrift mit Insektenborse 101: 53–58.

Cate PC, Sánchez-Ruiz A, Löbl I, Smetana A. (2007) Elateridae. In: Löbl I, Smetana A. (Eds) Catalogue of Palaearctic Coleoptera, Volume 4.Apollo Books, Stenstrup, 89–209.

Chu Y-I, Yamanaka T. (1973) A check List of the present and old name of insect collected localities in Taiwan. Annual of the National Taiwan Museum 18: 121–150.

Jiang S-H. (1993) A catalogue of the Chinese Elateridae. Beijing Agricultural University Publishing House, Beijing, 136–162.

Kundrata R, Musalkova M, Kubaczkova M. (2018) Annotated catalogue of the click-beetle tribe Dimini (Coleoptera: Elateridae: Dendrometrinae). Zootaxa 4412(1): 1–75. 10.11646/zootaxa.4412.1.1 PubMed DOI

Kundrata R, Sormova E, Qiu L. (2019a) Sinodimajenisi gen. et sp. nov., a new wingless click-beetle from the mountains of Hunan, China (Elateridae: Dendrometrinae: Dimini). Journal of Asia-Pacific Entomology 22(1): 15–18. 10.1016/j.aspen.2018.11.016 DOI

Kundrata R, Sormova E, Qiu L, Prosvirov AS. (2019b) Revision of the flightless click-beetle genus Neodima Schimmel & Platia (Elateridae: Dimini) endemic to China, with comments on its systematic position. Zootaxa 4604(1): 42–58. 10.11646/zootaxa.4604.1.2 PubMed DOI

Ôhira H. (1972) Elaterid-beetles from Taiwan in Bishop Museum (Coleoptera). Pacific Insects 14: 1–14.

Qiu L. (2021) A new Neodima species (Coleoptera: Elateridae: Dimini), with notes on the distribution and morphology of the genus. Zootaxa 5067(1): 115–121. 10.11646/zootaxa.5067.1.7 PubMed DOI

Qiu L, Sormova E, Ruan Y, Kundrata R. (2018) A new species of Dima (Coleoptera: Elateridae: Dimini), with a checklist and identification key to the Chinese species. Annales Zoologici 68(3): 441–450. 10.3161/00034541ANZ2018.68.3.006 DOI

Qiu L, Németh T, Prosvirov AS, Kundrata R. (2020) Dimaspicata Schimmel, 1999 (Elateridae: Dimini), a morphologically remarkable species endemic to China. Zootaxa 4768(3): 415–424. 10.11646/zootaxa.4768.3.8 PubMed DOI

Ruan Y, Kundrata R, Sormova E, Qiu L, Zhang M, Jiang S. (2018) Description of two new species of Dima Charpentier, 1825 from China (Coleoptera: Elateridae: Dendrometrinae). Zootaxa 4526(4): 589–599. 10.11646/zootaxa.4526.4.10 PubMed DOI

Schimmel R. (1993) Neue Arten sowie eine neue Gattung der Unterfamilie Diminae Candèze, 1863 aus Ostasien und dem Balkan (Coleoptera: Elateridae). Koleopterologische Rundschau 63: 245–259.

Schimmel R. (1996a) Das Monophylum Diminae Candèze, 1863 (Insecta: Coleoptera: Elateridae). Pollichia-Buch 33: 1–370.

Schimmel R. (1996b) Neue und wenig bekannte Elateriden aus Griechenland und Ostasien (Coleoptera: Elateridae). Koleopterologische Rundschau 66: 161–177.

Schimmel R. (2006) Neue Megapenthini-, Physorhinini-, Diminae- und Senodoniina-Arten aus Südostasien (Insecta: Coleoptera, Elateridae). Mitteilungen der Pollichia 92: 107–130.

Schimmel R, Platia G. (1991) Revision der Subtribus Dimina Candèze, 1863 aus dem Himalaya, mit Bestimmungstabellen der Gattungen und Arten (Coleoptera: Elateridae). Entomologica Basiliensia 14: 261–382.

Smith DS. (1964) The structure and development of flightless Coleoptera: A light and electron microscopic study of the wings, thoracic exoskeleton and rudimentary flight musculature. Journal of Morphology 114(1): 107–183. 10.1002/jmor.1051140106 DOI

Suzuki W. (1979) A new elaterid beetle of the genus Dima from Central Taiwan. Bulletin of the National Science Museum 5: 207–210.

Suzuki W. (1982) A new denticolline genus, Parapenia, from the Indo-chinese subregion (Coleoptera: Elateridae). Transactions of the Shikoku Entomological Society 16: 83–94.

Suzuki W. (1999) Catalogue of the family Elateridae (Coleoptera) of Taiwan. Miscellaneous Reports of the Hiwa Museum for Natural History 38: 1–348.