- The
pterostigma (plural:
pterostigmata) is a
group of
specialized cells in the
outer wings of insects,
which are
often thickened or coloured, and thus...
- the hindwing.
Unlike the true dragonflies, the Odonata, they had no
pterostigmata, and had a
somewhat simpler pattern of
veins in the wings. Most specimens...
-
stripe down the back. The
wings are
normally clear except for
brown pterostigmata at the
leading edges. It is 46–55
millimetres (1.8–2.2 in) in length...
-
wings of
dragonflies are
generally clear,
apart from the dark
veins and
pterostigmata. In the
chasers (Libellulidae), however, many
genera have
areas of colour...
-
segment on the
thorax anterior to the mesothorax.
pterostigma (plural
pterostigmata) The
prominent cell,
usually opaque and coloured, near the tip of each...
- Mac
Fheorais Coláiste M****re,
Baile Atha
Cliath Grinn- staidéar ar
pterostigmata - Education: BSc in
biochemistry from
Dundee University. -
Where is...
-
Wings of
Raphidia ophiopsis showing coloured pterostigmata...
- sponsa or L. dryas.
Immatures have pale
pterostigmata and only
develop the
characteristic two-coloured
pterostigmata when mature. The
flight period is from...
-
species but it is
darker in
color with more blue pruinescence. The
pterostigmata are
large and black. This
species has a wide
distribution extending...
-
wings have
bright red
veins and
orange makings at
their bases. The
pterostigmata are 2.3-2.4 mm long and dark brown. The
slender abdomen is
bright red;...
