B. DRAGONFLIES (ANISOPTERA)
1 'Hawker' dragonflies
Abdomen with a 'mottled' pattern of
yellow, dark brown, and green or blue.
— Not as above
Large species, with prominent yellow or
green 'eye' markings on thorax.
Paired blue (in male) or green (in female)
markings on segments 2-8 of abdomen
are fused into a band on hindmost
segments (9 and 10).
— Thoracic markings usually less prominent,
or absent.
Paired markings on abdominal segments
remain separate on hindmost segments
(9 and 10).
3 Small species (compared with other
hawkers).
Thorax (and abdomen in female) hairy
(fairly close view required).
Pterostigma very narrow.
Flies mid May to the end of June (only
'mottled' hawker on the wing this
early).
(Extremely rare in Essex)
Not as above
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