Two new genera of Baetidae (Ephemeroptera) from Borneo (East Kalimantan, Indonesia)

Annales de Limnologie: International journal of limnology

Jean-Luc Gattolliat¹ 

[1] Museum of Zoology, Palais de Rumine, Place Riponne 6, CH-1014 Lausanne, Switzerland

关键词: Ephemeroptera;    Baetidae;    Asiobaetodes;    Acerobiella;    new genera;    Borneo;   

DOI  :  10.1051/limn/2012012

学科分类：地球科学(综合)

来源: EDP Sciences

【 摘 要 】

Two new genera of Baetidae are described from East Kalimantan (Borneo) Asiobaetodes n.gen. and Acerobiella n.gen. Both genera are monospecific and only known from a very restricted area. They are highly adapted to fast flow and are closely related to Oriental genera Liebebiella Waltz & McCafferty, 1987 and Platybaetis Müller-Liebenau, 1980. Asiobaetodes is characterized by five pairs of ventrally orientated gills and tubular accessory gills at the bases of mouthparts and forelegs; these characters are also present in the Panamerican genus Baetodes Needham and Murphy, 1924 and the African genus Afrobaetodes Demoulin, 1970. The study of the mouthparts clearly indicates that the similarities must be considered as homoplasies. Acerobiella is characterised by its dorsal armature, especially the spike tubercles turned upwards on tergum II, which constitutes a unique character among the Baetidae.

【 授权许可】

CC BY