Archaeosynthemis orientalis
In 3 days ~10% in a week ~20%
Archaeosynthemis orientalis is a species of dragonfly of the family Synthemistidae, commonly known as the eastern brown tigertail. It is a medium-sized dragonfly with reddish-brown and yellow markings. It inhabits boggy creeks and swamps in eastern Australia
Archaeosynthemis orientalis appears similar to Archaeosynthemis occidentalis found in Western Australia. The genus name Archaeosynthemis combines the Greek ἀρχαῖος (arkhaios, "ancient" or "archaic") with Synthemis, an existing genus of dragonflies.
The species name orientalis is derived from the Latin oriens ("rising" or "eastern"), referring to its eastern Australian habitat. List of Odonata species of Australia Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Blue Mountains National Park | 🇦🇺 Australia |
More parks will be added in future updates.
Rare
Under 5% of wildlife watchers report an Eastern Brown Tigertail sighting in Blue Mountains National Park on a given day, based on 8 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 681st most-seen of the 789 insects we can rate there. Over three days the chance rises to about 10%, and over a week to about 20%, if each day is a fresh chance.
February and December
In those months about 10% of wildlife watchers report an Eastern Brown Tigertail in Blue Mountains National Park on a given day, against under 5% in January and March–November, the lowest months.
Between 9 am and noon
Across all the parks we cover, that three-hour window holds the most Eastern Brown Tigertail sightings with a recorded time, and nearly all of them come between 6 am and 6 pm: it is a daytime animal.
Only Blue Mountains National Park, in our data
Blue Mountains National Park is the only park on Wallace's Line with enough records to rate Eastern Brown Tigertail sightings: under 5% of wildlife watchers there report one on a given day.
GBIF citizen-science records
It is estimated from how often the Eastern Brown Tigertail is recorded against all the insects logged in Blue Mountains National Park (8 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.
