Neurothemis fluctuans (Fabricius, 1793) Grasshawk dragonfly 紅脈蝶蜻蛉

ID Source #1 : http://www.asia-dragonfly.net

http://zipcodezoo.com/Animals/N/Neurothemis_fluctuans.asp

Found in China, Indonesia, India, Lao, Myanmar, Malaysia, Philippines, Peninsular Malaysia, Thailand
Genus : Neurothemis Super-Family: LIBELLULOIDEA Family: LIBELLULIDAE


Colour maturation of a male Neurothemis fluctuans (Fabricius, 1793)

 

A comparison of a young and an old female Neurothemis fluctuans


The different pattern of male Neurothemis fluctuans


A comparison of wing knots between Neurothemis fluctuans and N. terminada (all female)

 


A comparison of pattern of male and female Neurothemis fluctuans

 


How big is a female Neurothemis fluctuans ?

Photo left is a life female Neurothemis fluctuans  enclosed in a clear PVC beg over graph sheet for size measurement.

This dragonfly was released.

See detail of size measurement of this female N. fluctuans

or click on the photo to enlarge


Neurothemis fluctuans ia about 0.5 cm shorter than Neurothemis  terminatata and Neurothemis ramburi. Abdomen mainly dark brown lacking well define d red marking.

Female with clear wings with wings hyaline with slight yellow tint at base.

Wild spread in tropical Asia.

Neurothemis fluctuans  is a comparatively small species. The hindwing is 21 to 25 mm).

The border of the pigmented area on the hindwing curve back to meet the hind margin well before the level of the pterostigma.

The extent of this dark patch is variable, sometimes reaching the base of the pterostigma and sometimes extending to the distal end.

The wings of the female are unmarked.

It is exceedingly common in open, disturbed habitats and also ventures far from its breeding site. It breeds at least up to 1000 m and may be found much higher as a vagrant.

 



Wing Knot

Male
 

翅痣 Wing mark

Male

 

M/F

Male
 
 

Abdomen

Male


Wing Base 翅基

Male
 

Back

Male
 

 
Male
 

Neurothemis fluctuans is a common yet beautiful species in Sabah. Found easily at the forest fringe, in secondary vegetation near water.  This one I found beside a mountain stream near Bukit Gemok, Sabah  on 1st October 2006


Neurothemis terminata terminata Ris, 1911
 

 

Neurothemis ramburii ramburii (Kaup in Brauer, 1866)
 


Neurothemis fluctuans (Fabricius, 1793)
 


Neurothemis fulvia (Drury, 1773)
 


Neurothemis intermedia atalanta Ris, 1919
 


Neurothemis tullia tullia (Drury, 1773)
 


INDEX : Dragonfly     July 19, 2007 06:25:49 PM