female usually lays eggs by repeatedly dipping end of abdomen into water while in tandem with male ...
... but not always, it seems.
mating
feeding
portraits
The female has a rectangular shape on the side of the thorax
enclosed by black lines.
Both sexes show short black lines on s8 & s9.
They also have black legs with a yellow stripe.
This species is usually the last one to be seen flying, maybe even in December.
female
male
The yellow side to the male thorax is divided by a reddish panel.
male
teneral female
immature female
female, not quite fully mature
female whose abdomen has become reddish with age
sometimes an ageing female shows yellowish areas that have turned grey
aged females often show a reddish median line down the abdomen