Tholymis tillarga (Fabricius, 1798) Evening Skimmer 雲斑蜻/夜遊蜻蜓

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Found in Bangladesh, China, Guandong, Hong Kong, Hainan, Indonesia, India, Japan, Lao, Sri Lanka, Myanmar, Malaysia, Philippines, Peninsular Malaysia, Thailand, Taiwan, Viet Nam
Sub-Order: ANISOPTERA Super-Family: LIBELLULOIDEA Family: LIBELLULIDAE
  • Infrakingdom: Ecdysozoa Aguinaldo et al., 1997 ex Cavalier-Smith, 1998 - ecdysozoans
    • Phylum: Arthropoda Latreille, 1829 - arthropods
      • Class: Insecta Linnaeus, 1758 - insects
        • Order: Odonata - dragonflies and damselflies
          • Suborder: Anisoptera Selys, 1854 - dragonflies
            • Family: Libellulidae
              • Genus: Tholymis
                • Species: tillarga (Fabricius, 1798)
                  • Scientific Name: Tholymis tillarga (Fabricius, 1798)

云斑蜻/夜游蜻蜓

体长:4.0~4.5公分 科名: 蜻蜓科 Libellulidae 学名: Tholymis tillarga 夜游蜻蜓特征:雄虫复眼红色,合胸红色;翅透明, 后翅靠近基部有一褐色斑,褐色外围有一白色斑, 翅痣黄褐色.腹部红色.腹长29-33mm, 后翅长32-35mm.雌虫体色为黄褐色, 后翅无白斑.常于午后巡逻于公园内开阔的长形渠道


Tholymis tillarga (hw 35mm) is another common crepuscular species in Sabah. Found in drains, lakes and weedy ponds. It commences activity about two hours before dusk. Males are quite conspicuous in the dull evening light by virtue of the bright white wing patches, which seem almost to glow as they fly back and forth. Its orange abdomen is also conspicuous. It is of medium size ( hw, 34-35 mm) and very widely distributed in the old world tropics.

Immatures male and female liik similar but lacking white patch. Common in standing and slow flowing water in all types of open habitats, 0-1500 m; salt tolerant. Larva bottom dwelling, without long posterior spines and relatively slender. Adults active from 2-3 hours before sunset until dark. In the light of early dusk the whirring white patches on the wings are almost luminescent, and as the gloom deepens, are all that can be seen. Widespread in tropical Asia, Africa and Australasia.
 

http://www.ilib.cn/Periodical.Articles/shidkx/2005/03/shidkx200503002.html

"....Tholymis tillarga and Copera ciliata were strictly found at ......implicating their preference for smaller, slow moving and polluted river with floating microphytes.... "

Unique pattern of a mature male T. tillarga.

A mature male Tholymis tillarga's hind wing has a amber-brown tinted patch followed by area of white pruinescence which seem to glow as they fly back and forth.

However immature male lacking this white patch

 

Wing Knot

Male
 

翅痣 Wing mark

Male

 

M/F

Male
 

Abdomen

Male

 


Wing Base 翅基

Male
 

Back

Male
 

Vain

Upper


Unique Marks

Lower

 

INDEX : Dragonfly     September 21, 2016 07:16:51 PM