Lesser Emperor (Anax parthenope)
It is a relatively rare species for Somerset, but seems to be increasing in its numbers on the Avalon Marshes as of 2024, especially in Ham Wall.
Smaller than the Emperor, the Lesser emperor has a dull abdomen with a blue section at the front, the thorax is brownish.
Males have a waist at the front of the abdomen.
Females don't have any waist.
It is a species I'm trying to photograph at the moment, so I am looking to improve on the images below in 2025.

Male
Male
Elderly Female
Elderly Female
Want to See 
It is becoming common on Avalon Marshes from 2024, especially RSPB Ham Wall.
Likes wetlands and ponds.

Especially Good
RSPB Ham Wall - Route 1 (July) 
In 2024, this area was very good, I will have to wait to see what 2025 brings.

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