Taiwanese Journal of Entomological Studies

1-7

Authors: LAN-WEI YEH, KATSUYUKI TERADA, CHUNG-HSIN HUANG

A systematic survey of ground beetles (Coleoptera: Carabidae) was conducted at Gaomei Wetlands Wildlife Refuge. We discovered 19 carabid species in the study area and provide a complete list of them. Among four sampling sites, the northern side of the Dajia River estuary had the highest species richness, where 14 species of Carabidae were recorded. The species compositions were also different across sampling sites, probably caused by habitat heterogeneity in Gaomei Wetlands Wildlife Refuge. In addition, we provide notes on the two most abundant species. Bembidion foochowense Lindroth 1980 is rediscovered and represents the first recorded littoral ground beetle in central Taiwan. Mastax brittoni Quentin, 1952, the species with three different elytral color patterns but has a constant elytral color pattern in our survey and occurs sympatrically with ants. Our investigation was focussed on the carabid fauna of central Taiwan and implied the insufficient investigation of littoral ground beetles.

12-15

Authors: WEN-CHI YEH, FANG-SHUO HU

The single record of Chlorogomphus splendidus (Selys, 1878) in Taiwan was based on a single female specimen collected from Lanyu Island in eastern Taiwan. The status of this species in Taiwan has remained uncertain for nearly a century, as no new material is available for study. Upon the capture of a female C. risi Chen, 1950 in 2010 from the island, we decided to re-examine the voucher specimen of C. splendidus and compared it with the female C. risi. The result reveals that Lanyu C. splendidus is a pale-winged female C. risi. Hence, Chlorogomphus splendidus has to be excluded from the list of Taiwanese Odonata.

21-28

Authors: WEN-CHI YEH

The identity of Taiwanese Rhyothemis fuliginosa Selys, 1883 is clarified to be the gynomorphic female of R. regia regia (Brauer, 1867). Female Taiwanese R. r. regia differ from female R. fuliginosa mainly in having paler face with weak metallic lustre, anteriorly more strongly incurved postclpyeus and stouter cerci. The reported wing patterns of various subspecies of R. regia are compiled from the literature for comparison. A transitional variation of the female wing pattern of Taiwanese R. r. regia varying from andromorphic to gynomorphic is illustrated. The case of range expansion caused by climatic warming in R. r. regia and other libelullid dragonflies in Taiwan is elucidated.

31-32

Authors: SHIPHER WU, TSAN-RAN TSENG

The larval and pupal morphology of the Taiwanese endemic species Agrotis taiwana Chang, 1991 is first described in the present study.