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Species Distribution - Butterfly
   Ng Tung Chai
    Site Description

Ng Tung Chai is located within Tai Mo Shan Country Park.  The dense natural woodland covering the valley is one of the most important breeding sites for butterflies.  Many butterflies can be seen along the footpath leading to the waterfall, including Common Nawab (Polyura athamas), White Dragontail (Lamproptera curius), and Yellow Orange Tip (Ixias pyrene).

    Site Protection

The site is within Tai Mo Shan Country Park.


Kowloon Motor Bus:

64K   Tai Po Market Railway Station - Yuen Long (West)

65K   Tai Po Market Railway Station - Sheung Tsuen

Disembark at Ng Tung Chai stop and walk uphill towards Man Tak Yuen.

Green Minibus:

25K   Tai Po Market (Wai Yan Street) - Ng Tung Chai

Disembark at Ng Tung Chai and walk uphill towards Man Tak Yuen.

    Survey method

The Pollard transect count method was adopted.  At each locality a fixed transect, typically of between 1 to 4 km in length, was walked.  Butterflies observed either in flight or settled on vegetation within 5m on either side of the observers were recorded.  There was no restriction on the recording distance in front of the observers, or on the height at which the butterflies could be recorded.  Information recorded included species, abundance, sex (if possible) and the habitat types where each species was seen.  The butterfly surveys were undertaken between March and November, which covers the flight period of most local species.  The transects were walked between 09:30 and 16:30 on rainless days, when the temperature was generally high enough for butterflies to become active.  Other variables recorded included time, weather and cloud cover, as well as the presence of butterfly eggs, larvae or pupae, and special behaviour such as courtship, mating and hill-topping.

    Tips and Code

HK Biodiversity Online

Map and species list provided are for reference only.