Abstract
The Oriental genus Megagraphydrus Hansen, 1999 was originally established for five species described from China (Taiwan), Thailand, Sri Lanka, West Malaysia and Vietnam. Subsequently, Hebauer (2000) described an additional five species, including the first species from Mainland China (Megagraphydrus anhuianus Hebauer, 2000), and provided a key to all known species at that time. In 2009, Minoshima & Fujiwara described M. luteilateralis from Japan, bring the total number of described species to eleven. Up to now, two of these were known from Mainland China: Megagraphydrus anhuianus Hebauer and Megagraphydrus attenuatus Hansen.
References
Minoshima, Y. & Fujiwara, J. (2009) Discovery of water scavenger beetle genus Megagraphydrus Hansen (Coleoptera, Hydrophilidae) from Japan, with description of a new species. Elytra, 37, 53–64.
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Hebauer, F. (2000) The genus Megagraphydrus Hansen, 1999, with description of new species (Coleoptera: Hydrophilidae). Acta Coleopterologica, 16, 14–22.