Tonyosynthemis ofarrelli
In 3 days ~40% in a week ~70%
Tonyosynthemis ofarrelli, more commonly known as the slender tigertail, is a species of Odonata from the family Synthemistidae. It is found in Queensland, Australia, along the eastern coast. They tend to live along or near freshwater streams or rivers, which is also where Odonata tend to lay their eggs.
As an adult, Tonyosynthemis ofarrelli is a predator, feeding on smaller dragonflies and larvae. Females lay their eggs along streams. Samples of larvae and exuviae were collected at multiple sites in the 1990s in north-eastern New South Wales, Australia. The sites consisted of the Timbara River near Billyrimba, the Boonoo Boonoo Falls, and at Wild Bull Park along the Wilson River, also nicknamed "The Bluff". Researchers successfully collected first-instar exuviae and a specimen of a female along the Wilson River, which matches the description from an earlier specimen of a confirmed male Tonyosynthemis ofarrelli, so scientists have concluded that the female specimen collected is that of Tonyosynthemis ofarrelli.
The collected female specimen's hindwing was about 34.2 millimetres (1.35 in), with an abdomen measuring about 36.5 mm (1.44 in). The female's... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Lamington National Park | 🇦🇺 Australia | |
| 2 | Springbrook National Park | 🇦🇺 Australia |
Possible
About 20% of wildlife watchers report a Slender Tigertail sighting in Springbrook National Park on a given day, based on 64 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 36th most-seen of the 429 insects we can rate there. Over three days the chance rises to about 40%, and over a week to about 70%, if each day is a fresh chance.
December
In that month about 40% of wildlife watchers report a Slender Tigertail in Springbrook National Park on a given day, against under 5% in April to November, the lowest months.
Between 8 and 11 am
Across all the parks we cover, that three-hour window holds the most Slender Tigertail sightings with a recorded time, and nearly all of them come between 6 am and 6 pm: it is a daytime animal.
Among the best
Of the 2 parks where we can rate Slender Tigertail sightings, Springbrook National Park ranks 2nd at about 20%, level with the leaders once rounded. The best odds are in Lamington National Park (Australia, about 20%).
Same family: Synthemistidae
The closest relatives of the Slender Tigertail that you can see in Springbrook National Park (family Synthemistidae, Tigertails) are Black Tigertail (about 10%) and Yellow-Tipped Tigertail (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Slender Tigertail is recorded against all the insects logged in Springbrook National Park (64 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.
