Tuesday, May 8, 2018

Scarlet marsh hawk (Aethriamanta brevipennis Rambur, 1842) തീക്കരിമുത്തൻ , ചോപ്പൻ കുറുവാലൻ.

Common name:  Scarlet Marsh Hawk
Malayalam name: തീക്കരിമുത്തൻ, ചോപ്പൻ കുറുവാലൻ
Scientific name: Aethriamanta brevipennis Rambur, 1842
Family: Libellulidae
Place of observation: Thumboor - Kerala 
Date of observation: Various

Male:      Abdomen: 17-20mm. Hind wing: 23-26mm.
Female:  Abdomen: 16mm, Hind wing: 23mm. 

Description: A small dragonfly with the black thorax and scarlet yellow abdomen.

Male: 

The face is covered with short and stiff black hairs.
Eyes: Dark reddish-brown paler towards lateral and undersides.
Thorax: Dark chocolate brown above, which pales to golden olivaceous-brown on sides.
Legs: Black. Hind femora marked with a bright blood-red spot.
Wings: Transparent and tinted with deep golden amber at the base. In the hind wings, the amber tint encircles a black opaque area. The venation within this region is bright golden yellow.
Wing spot: Blackish brown.
Abdomen: Bright red contrasting with the blackish thorax.

Female:

Eyes: Dark reddish-brown. Thorax: Golden-olivaceous above and paler sides.
Legs: Black. The red spot on the hind femora of the male is replaced by bright yellow.
Wings: Very similar to the male, but opaque black basal spot usually small.
Wing spot: Greyish white. Abdomen: Golden olivaceous with dorsal black triangular
or rhomboidal markings. Habits and habitat: Found in weed-covered ponds,
tanks and ditches. They have adapted to the urban environment and could be seen
in garden ponds in cities. Breeding: Breeds in weed-covered ponds and tanks.
Flight season: May-October.
Distribution: Widely distributed in the Western Ghats and Northeastern India.


Male Obelisk Posture
Immature male. 

Subadult male
Subadult male
Female. Obelisk Posture.
Female. Obelisk Posture.
Immature male. Obelisk Posture 

Wings

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