|Neurobasis chinensis chinensis (Linnaeus,
1758), the Green Metalwing, is one of the beautiful Damselflies seen in
the Oriental region. The hind wings of male are metallic green in colour,
and male makes flash movements by this wings infront of the female as courtship
behaviour. A subspecies N. c. florida (Walker, 1853) is known from Java.
The face of this damselfly is blackish
brown above and bluish white below in male; brownish above and yellowish
white below in female.
The wings are rounded at tips, forewings
transparent, tinted with pale yellowish green with emrald green with emrald
green venation, hindwings opaque, basal two thirds iridescent green or
peacock blue, apical half is blackish brown with dull golden reflections
in males. In females transparent and amber coloured, all wings have a round
creamy white central opaque spot on the edge of the wing, wingspots
absent in forewings in both but females have a creamy white in hindwings.
Thorax is iridescent green with a
coppery wash. Abdomen is iridescent green above and on sides; underside
black; the 9th and 10th segments are whitish below in males; dull iridescent
green above and black below; green metallic stripe on sides in all segments
bordered with black.
The habitat is near to the fast flowing
streams in the tropical evergreen forests. Frequently found among hill
streams. Perch among boulders and fallen logs in streams. Flight season
is May to November. Breeding in streams. Females lay eggs on submerged
Neurobasis chinensis is a very common
species over much of its range, capable of thriving in secondary and disturbed
habitats. It is widely distributed in mainland Asia, occurring in India,
Bangladesh, Nepal, Sri Lanka, Myanmar, Thailand, Lao PDR, Viet Nam, China,
Peninsular Malaysia and Sumatra, subspecies florida occurs in Java. IUCN
Red List accessed as Least Concern.