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The “minute diving beetles” of southern Australia – taxonomic revision of Gibbidessus Watts, 1978, with description of six new species (Coleoptera, Dytiscidae, Bidessini)
ZooKeys ( IF 1.3 ) Pub Date : 2020-10-12 , DOI: 10.3897/zookeys.975.55456
Lars Hendrich , Chris H.S. Watts , Michael Balke

Morphology and mitochondrial DNA sequence data are used to reassess the taxonomy of Australian diving beetles previously assigned to the genera Uvarus Guignot, 1939 and Gibbidessus Watts, 1978. Gibbidessus was described as a monotypic genus for Gibbidessus chipi Watts, 1978. The genus is significantly extended here. Based on molecular systematic evidence, Uvarus pictipes (Lea, 1899) is transferred to Gibbidessus. Gibbidessus chipi and Gibbidessus pictipescomb. nov. are redescribed, and six new species are described: Gibbiddessus atomussp. nov. (SW Australia, Northcliffe area) [the smallest epigean diving beetle in Australia], G. davidisp. nov. (SW Australia), G. drikdrikensissp. nov. (Victoria), G. kangarooensissp. nov. (SA Kangaroo Island), G. pederzaniisp. nov. (SW Australia, Nannup area), and G. rottnestensissp. nov. (SW Australia). Species are delineated using characters such as male genital structure and beetle size, shape and colour pattern. Mitochondrial Cox1 data for 27 individuals, representing five species, were generated, and revealed clusters congruent with the morphological evidence. Gibbidessus occur in southern Australia, with the centre of diversification in the isolated peat- and wetlands of SW Australia. All species occur in very shallow water of seasonal, exposed or half-shaded wetlands and flooded meadows.

中文翻译:

澳大利亚南部的“分钟潜水甲虫” – Gibbidessus Watts的分类学修订,1978年,描述了六个新物种(鞘翅目,Dytiscidae,Bidessini)

形态学和线粒体DNA序列数据可用于重新评估先前分配给Uvarus Guignot属(1939年)和Gibbidessus Watts(1978年)的澳大利亚潜水甲虫的分类学。Gibbidessus被描述为Gibbidessus chipi Watts(1978年)的单型属。这里。根据分子系统的证据,Uvarus pictipes(Lea,1899年)被转移到Gibbidessus。Gibbidessus chipi和Gibbidessus pictipescomb。十一月 进行了重新描述,并描述了六个新物种:Gibbiddessusatomussp。十一月 (澳大利亚西南部,Northcliffe地区)[澳大利亚最小的Epigean潜水甲虫],G。davidisp。十一月 (澳大利亚西南部),G。drikdrikensissp。十一月 (维多利亚),袋鼠G. 十一月 (SA袋鼠岛),G。pederzaniisp。十一月 (澳大利亚西南部Nannup地区)和G. rottnestensissp。十一月 (澳大利亚西南部)。使用诸如雄性生殖器结构和甲虫大小,形状和颜色模式之类的字符来描述物种。生成了代表5个物种的27个个体的线粒体Cox1数据,并揭示了与形态学证据一致的簇。Gibbidessus发生在澳大利亚南部,而多样化的中心则位于澳大利亚西南部偏僻的泥炭和湿地。所有物种都发生在季节性,裸露或半遮蔽的湿地和水淹草甸的非常浅的水中。在澳大利亚西南部偏僻的泥炭和湿地中建立了多元化中心。所有物种都发生在季节性,裸露或半遮蔽的湿地和水淹草甸的非常浅的水中。在澳大利亚西南部偏僻的泥炭和湿地中建立了多元化中心。所有物种都发生在季节性,裸露或半遮蔽的湿地和水淹草甸的非常浅的水中。
更新日期:2020-10-12
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