Taiwanese Journal of Entomological Studies

49-60

Authors: HSING-CHE LIU, JIN-HUEI LIN, KAI-YING ZHENG

The Penghu Islands are Taiwan’s largest adjacent islands located in the Taiwan Strait. However, the aquatic beetles are still poorly known. In order to understand the aquatic insect fauna of Taiwan’s offshore islands, a field survey was performed across Penghu islands and an investigation of museum collections was conducted. The results show that 15 species of aquatic beetles in five families are recorded from Penghu Islands, of which one is newly recorded in Taiwan: Helochares atropiceus Régimbart, 1903, and the following species are reported from Penghu for the first time: Berosus fairmairei Zaitzev, 1908, Canthydrus nitidulus Sharp, 1882, Cybister sugillatus Erichson, 1834, C. tripunctatus lateralis (Fabricius, 1798), Helochares neglectus (Hope, 1845), H. atropiceus Régimbart, 1903, Hydaticus rhantoides Sharp, 1882, Peltodytes sinensis (Hope, 1845) and Rhantaticus congestus Klug, 1833.