— Not as above ...................................... 20
15 Body almost completely black, except for
blue (sometimes violet or green) stripes
on thorax, and one clear blue segment (8)
near the tip of the abdomen. Ischnura elegans
(Blue-tailed Damselfly)
— Not as above ...................................... 16
16 Body mainly black, but with blue sides to
the thorax (no thoracic stripes).
Eyes red.
Final two segments (9 and 10) of abdomen
clear blue. Erythromma najas
male
(Red-eyed Damselfly)
— Not as above ...................................... 17
17 Abdomen with alternating pattern of
blue with black markings. Segment 2 of
the abdomen with black mushroom'
marking.
Two clear blue segments (8 and 9) near the
hind end of the abdomen. Enallagma cyathigerum male
(Common Blue Damselfly)
119