Synthemis eustalacta
In 3 days ~60% in a week ~90%
Synthemis eustalacta is a species of dragonfly in the family Synthemistidae, known as the swamp tigertail. It is found in south-eastern Australia, where it inhabits streams and rivers. It is a slender, medium-sized dragonfly with black and yellow markings.
The genus name Synthemis is derived from the Greek σύν (syn, "together") and -themis, from Greek Θέμις (Themis), the goddess of divine law, order and justice. In early odonate taxonomy, names ending in -themis were introduced by Hagen and were widely used for dragonflies.
The species name eustalacta is derived from the Greek εὖ (eu, "well") and σταλακτός (stalaktos, "droplet" or "spotted with drops"), referring to the yellow drop-like markings on the abdomen. List of Odonata species of Australia Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Kosciuszko National Park | 🇦🇺 Australia |
More parks will be added in future updates.
Possible
About 30% of wildlife watchers report a Swamp Tigertail sighting in Kosciuszko National Park on a given day, based on 40 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 13th most-seen of the 105 insects we can rate there. Over three days the chance rises to about 60%, and over a week to about 90%, if each day is a fresh chance.
January
In that month about 50% of wildlife watchers report a Swamp Tigertail in Kosciuszko National Park on a given day, against under 5% in April to November, the lowest months.
Between 1 and 4 pm
Across all the parks we cover, that three-hour window holds the most Swamp Tigertail sightings with a recorded time, and nearly all of them come between 6 am and 6 pm: it is a daytime animal.
Only Kosciuszko National Park, in our data
Kosciuszko National Park is the only park on Wallace's Line with enough records to rate Swamp Tigertail sightings: about 30% of wildlife watchers there report one on a given day.
Same family: Synthemistidae
The closest relatives of the Swamp Tigertail that you can see in Kosciuszko National Park (family Synthemistidae, Tigertails) are Southern Tigertail (about 20%) and Small Tigertail (about 20%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Swamp Tigertail is recorded against all the insects logged in Kosciuszko National Park (40 verified sightings from 2019 to 2026), 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.
