Austroagrion watsoni
In 3 days ~20% in a week ~40%
The eastern billabongfly (Austroagrion watsoni) is a damselfly in the family Coenagrionidae. It is also known as the eastern dart. Eastern billabongflies are small damselflies about 25mm (1 inch) in length. They are found near slow running water or still water, such as lakes, ponds and ditches. Male and female eastern billabongflies mate in a wheel position.
The male eastern billabongfly has a bright blue thorax with black markings, and a long and slender black abdomen with blue rings and a blue tip. The female is a similar size to the male and is pale blue to grayish-green in colour. The antehumeral stripe of the female is a contrastingly bright green.
Eastern billabongflies usually rest on plants either in a pond or at the waters edge, and sit very close to the water surface. They are relatively quick flyers. Eastern billabongflies appear similar to common bluetails and blue riverdamsels. Eastern billabongflies are smaller. Eastern billabongflies have a blue bar just behind their eyes where the common bluetail has two blue spots. The tips of the tails of eastern billabongflies have two black squares, whereas the common bluetail... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Lamington National Park | 🇦🇺 Australia | |
| 2 | Springbrook National Park | 🇦🇺 Australia | |
| 3 | Grampians National Park | 🇦🇺 Australia | |
| 4 | Blue Mountains National Park | 🇦🇺 Australia |
With luck
About 10% of wildlife watchers report an Eastern Billabongfly sighting in Brisbane on a given day, based on 124 verified sightings from GBIF citizen-science data. It is the 174th most-seen of the 1083 insects we can rate there. Over three days the chance rises to about 20%, and over a week to about 40%, if each day is a fresh chance.
April–May and August–February
In those months about 10% of wildlife watchers report an Eastern Billabongfly in Brisbane on a given day, against under 5% in March and June–July, the lowest months.
Between 10 am and 1 pm
Across all the parks we cover, that three-hour window holds the most Eastern Billabongfly sightings with a recorded time, and nearly all of them come between 6 am and 6 pm: it is a daytime animal.
Yes
Of the 3 cities where we can rate Eastern Billabongfly sightings, Brisbane has the highest daily chance: about 10%. Next come Melbourne (Australia, about 10%) and Sydney (Australia, under 5%).
GBIF citizen-science records
It is estimated from how often the Eastern Billabongfly is recorded against all the insects logged in Brisbane (124 verified sightings), calibrated against known sighting rates. Figures are rounded to the nearest 10% because citizen-science data supports honest approximations, not decimals, and months with records from fewer than five people show "—". How it works.
