4 Large hawker.
Leading edge of wings bright yellow. In
males the anal triangle of hind wings is 2-
celled and segment 2 of the abdomen is as
shown.
Flies July - September
(Extremely rare vagrant in Essex) Aeshna juncea*
(Common Hawker)
— Smaller and less 'gaudy' species
(intermediate in size between A. juncea
and B. pratense)
Leading edge of wings dull brown.
In males the anal triangle of the hind
wings is 3-celled and segment 2 of the
abdomen is as shown.
Flies August - November.
(Very common in Essex) Aeshna mixta*
(Migrant Hawker)
5 Large hawker.
Body almost wholly brown.
Wing-venation brown.
Wing-membrane yellow-brown tinted. Aeshna grandis
(Brown Hawker)
— Not as above ...................................... 6
6 Blue (males) or green
(females).
Abdomen with black median line and
lateral markings as shown. Anax imperator
(Emperor)
— Not as above ...................................... 7
7 Large hawker.
Abdomen black with yellow bands.
(Extremely rare vagrant in Essex) Cordulegaster boltonii
(Golden-ringed Dragonfly)
124