Dragonflies and damselflies are semi - aquatic predacious insects with free - flying adults and aquatic larvae 蜻蜓与豆娘属半水生掠食性昆虫，成虫能飞，幼虫在水中生长。
2.
This little blue damselfly is about 25mm in length , and it has only been recorded in a few localities in hong kong 这种细少的豆娘身长仅25毫米，只在本港少数地方录得出没记录。
3.
The study , conducted by wwf staff for a period of 2 years , aims to record the necessary data of dragonfly and damselfly species at mai po for compilation of baseline information and formulation of freshwater habitats management strategy 是项研究为期两年，由本会工作人员负责，目的是记录在米埔发现的蜻蜓与豆娘品种及其与生境的关系，以便编制基线资料，协助制定淡水生境管理策略。
4.
Since mid 1990s , wwf has been working on the creation of freshwater habitats in mai po nature reserve by turning the silt - up gei wai into rain - fed freshwater ponds so as to attract more aquatic and semi - aquatic insects , including the dragonflies and damselflies 自1990年代中期起，世界自然基金会一直把米埔自然保护区内淤塞的基围，改建成淡水池塘，从而开辟淡水生境，以吸引更多水生和半水生昆虫，包括蜻蜓和豆娘到此栖居。
5.
Our findings indicate that mai po nature reserve serves a very important wetland mosaic for different dragonfly and damselfly species with at least 51 species recorded ; of which 1 is globally endangered species and 15 are rare or uncommon species to hong kong 世界自然基金会教育主任王伟东表示：我们的发现显示，米埔自然保护区是不同蜻蜓和豆娘品种的重要栖息地。米埔录得至少51个品种，当中一种属全球濒危品种， 15种属本港罕有或不常见品种。
