Taiwanese Journal of Entomological Studies

27-29

Authors: CHIEN-YU HUANG, MEI-LING LO

The bionomics of Tritaeniopteron excellens (Hendel, 1915) is poorly understood. The present study provides a description of the ovipositional behavior of this species on Acacia confusa Merr., and discusses larval hosts of related species.

6-12

Authors: WEI-ZHE TSENG, REN-CHUNG CHENG

Phaeopholus Roelofs, 1873 is a small genus composed of four species, known to be widely distributed in East Asia, but there is no formal record in Taiwan. This paper provides the first record of genus Phaeopholus in Taiwan, with two new distribution records for P. ornatus Roelofs, 1873 and P. major Roelofs, 1879. The partial COI sequences of both species and the photograph of habitus and male genitalia are provided.

24-26

Authors: PO-WEI CHEN

An observational record of a pair of Pyrgocorypha formosana Matsumura & Shiraki, 1908 found hiding inside an artificially cut bamboo stump as refuge on a winter night in Xihu Township, Miaoli County, Taiwan is provided. The discussion of potential mate-guarding behaviour in this species is also provided.

1-5

Authors: CHENG-YU CHEN, YU-HAN WU, HUNG-PO CHEN

More than 80% of bees and wasps are not eusocial insects; they are so-called solitary bees. Some of them adopt pre-existing cavities to build nests, which are called trap-nesting bees/wasps. Nowadays, nesting resources are becoming less available due to urbanization, making it harder for them to survive. The Nature Conservation Association of National Tsing Hua University, Taiwan used ecological survey methods called nest traps and cooperated with service courses to conduct surveys on the campus. Our aim was to investigate the bionomics of solitary bees at the university, conserve their populations, and promote environmental education. At the beginning, the university rejected the plan because of the fear of bees/wasps expressed by professors and students. After much communication, we succeeded in setting up 14 solitary bee hotels on the campus. Our results show that the solitary bee hotels' location must be kept away from the rain and the soil surface. Additionally, the main reproduction period is from July to October. This information will help us optimize future plans to further conserve trap-nesting bees/wasps on the university campus.

44-48

Authors: FANG-SHUO HU, HSING-CHE LIU

The taxonomy of the genus Stenus Latreille, 1797 in Taiwan has been addressed in many papers. Herein, we reviewed previous references on Taiwanese Stenus. In addition, based on specimens from wetlands in northern Taiwan, three Stenus species are recognized: Stenus alumoenus Rougemont, 1981, S. flavidulus paederinus (Champion, 1924) and S. frater Benick, 1916. Among these species, S. alumoenus and S. frater are newly recorded from Taiwan. Habitus, bionomics, brief diagnosis and updated distributional records of these three species are provided. Our study provides supplementary data on the fauna of Stenus in Taiwan.

38-40

Authors: CHI-MAN LEONG, KIT CHANG, ION-KEI WONG

Mortonagrion hirosei Asahina, 1972, common name ‘Four-spot Midget’, is the one of only a few East Asain odonates on the International Union for Conservation of Nature (IUCN) Red List. Our study provides photographic evidence of M. hirosei in Macao, and we note its distribution within this territory.