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°anax inperator male°° (18)
flashpoint Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 630 W: 133 N: 4324] (28008)

Anax imperator(Leach,1815)
UK: Emperor Blue dragonfly
DK: Stor Kejserguldsmed
FR: Anax empereur
NL: Grote keizerlibel



Males have a green thorax with a pair of blue transverse, oblique, blue bands on each side immediately in front of the forewings. There are a pair of blue longitudinal bands running down the length of the abdomen on either side of a black central band.
Females are very similarly patterned but are green throughout although their green abdominal bands may become blue with age.
Of all the large dragonflies, this species is most closely associated with still water and spends most of its time patrolling its territory, settling periodically on marginal vegetation. It is shy and easily disturbed at rest. It often takes its prey, caught in flight, onto adjacent grasslands or shrubs to eat. This species is usually immediately identifiable by the way its abdomen is slightly down-curved in flight. Females lay their eggs in submerged or floating vegetation.

nel WS un dettaglio dei segmenti addominali che terminano con delle strutture chiamati cerci,somiglianti ad una sorta di tenaglia, con la quale il maschio trattiene la femmina durante l’accoppiamento.


Make: NIKON CORPORATION
Model: NIKON D40X
Software: Paint Shop Pro Photo 11,20
Exposure Time: 10/500 sec
F-Stop: f/13.0
ISO Speed Ratings: 400
Focal Length: 105 mm
Date Taken: 2009-06-27 10:26
Metering Mode: Pattern
File Size: 141 kb

Altered Image #1

flashpoint Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 630 W: 133 N: 4324] (28008)
psp
Edited by:flashpoint Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 630 W: 133 N: 4324] (28008)

detail of the abdominal segments that end with structures called cerci , which resemble a sort of pincers, with which the male holds the female during mating.