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Scientific name
Anotogaster sieboldii (Selys, 1854) |
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Chinese name 無霸鉤蜓
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English name
Siebold's Dragonfly, Jumbo Dragonfly |
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Classification
勾蜓科(Cordulegastridae)
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Diagnosis
Characteristic by its large green eyes, yellow stripes
on upper portion of fronts and basal part of labium, black
thorax with sloppy yellow bands and segmented yellow patches
on abdomen. Abdominal length 6.8-7.5 cm in male and 7.8-8.5
cm in female. See figures 192-193 for comparison of species
of different families with similar colour patterns. |
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Distribution
This dragonfly is widely ranging through the eastern palaearctic
region from Sakhalin Island, Japan, E. China to Taiwan.
Asahina (1965) stated the population in Taiwan probably
belonging to an unnamed taxon. |
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Habitat and Ecology
This species has strong territorial behavior, which usually
soar around a specific water area. For more detailed information
on biology and ecology see Chang & Wang (1997), Wang
& Heppner (1997) and Wang (2000). |
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Threats and Conservation Status
This species is still quite common in Taiwan and no commercial
collecting has been reported and noticed, but pollution
of aquatic environments may have caused an instant decline. |
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Remarks
The family name Cordulegastridae has been spelt as Cordulegasteridae in various literature, including the Protected Species List of the Wildlife Conservation Law (Agriculture Council, 1989) and the Chinese version of this book (Yen & Yang, 2000). In this version, we adopt Cordulegastridae as the valid spelling of this family name by following Bridges (1991, 1992, 1993), Wang (2000) and Zoological Records.
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