Orthetrum glaucum (Brauer, 1865) 金黃蜻蜓/黑尾灰蜻

ID Source#1 : http://www.asia-dragonfly.net
ID Source# 2 : http://www.tspes.tpc.edu.tw

Found in China, Guandong, Guangxi, Hong Kong, Indonesia, India, Japan, Sri Lanka, Myanmar, Malaysia, Philippines, Peninsular Malaysia, Thailand, Taiwan, Viet Nam
Genus : Orthetrum Super-Family: LIBELLULOIDEA Family: LIBELLULIDAE

In the same Genus Orthetrum | Orthetrum chrysis  | Orthetrum glaucum Orthetrum sabina   |  Orthetrum testaceum   |

 


This matured female has white pruinescenc (powder) developed all over the body.

Segment 8, 9 and 10 stained with some dried mud particles indicating she has been dropping eggs on water.

An egg remain stuck infront the opening of segment 8 of this female Orthetrum glaucum. In the photo the egg seem round in shape but when view from another angle the egg is actually oval shape.

Unlike damselflies, most dragonflies do not have a fully formed ovipositor(i.e. without complicated structure containing paired valves and cutting blades) Thus a female Orthetrum glaucum simply drop her eggs into water.



未熟雄蟲近似雌蟲,但可從腹末節構造分辨,

 

雌蟲複眼褐色或藍綠色,合胸前視金黃色,側視具黑褐色或褐色粗線條紋,底色金黃,翅透明,翅痣黃色,此為命名的由來。老熟雌蟲複眼呈藍綠色,腹部也會呈灰藍色。


體長44-50mm,

雄蟲複眼藍綠色,胸部藍灰色,腹部灰藍色具粉末,翅膀透明,翅基具少許褐斑,翅痣黃褐色。老熟雄蟲體色漸淡,

生活於平地至低海山區,常見於路邊溝渠、池塘等水域活動,棲息環境適應能力好,數量多。


10 Species of the family of  Orthetrum

本屬有10種 :

金黃蜻蜓  
杜松蜻蜓  
鼎脈蜻蜓  
灰黑蜻蜓  
呂宋蜻蜓  
霜白蜻蜓(西里亞種)  
霜白蜻蜓(中印亞種)  
扶桑蜻蜓  
赭黃蜻蜓  
白刃蜻蜓  


 

INDEX OF DRAGONFLY

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