Tramea loewii
In 3 days ~20% in a week ~40%
Tramea loewii, commonly known as the common glider, is a species of dragonfly in the family Libellulidae. It occurs from Indonesia and New Guinea through Australia and the western Pacific to New Caledonia. The species is recently self-introduced to New Zealand.
Tramea loewii is a medium to large dragonfly with dark patches at the base of the hindwings, a striped thorax, and a red abdomen in males. In 1866, Brauer published the description of Tramea loewii using the manuscript name proposed by Kaup. Brauer noted that Kaup had already assigned names to many specimens sent to him for study, and that he generally retained those names unless they were already occupied.
In 1942, Lieftinck reviewed Indo-Australian populations of Tramea loewii and described the Australian form as Tramea loewii tillyardi. He regarded the Australian populations as closely related to specimens from Ceram and western New Guinea, differing mainly in thoracic colouration and minor differences in the male genitalia.
Tramea tillyardi is now treated as a synonym of Tramea loewii. Tramea loewii is a medium to large dragonfly with a wingspan of about 85 mm and a body length of... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Kakadu National Park | 🇦🇺 Australia | |
| 2 | Nitmiluk National Park | 🇦🇺 Australia | |
| 3 | Litchfield National Park | 🇦🇺 Australia | |
| 4 | Lamington National Park | 🇦🇺 Australia | |
| 5 | Royal National Park | 🇦🇺 Australia | |
| 6 | Daintree National Park | 🇦🇺 Australia |
With luck
About 10% of wildlife watchers report a Common Glider sighting in Sydney on a given day, based on 96 verified sightings from GBIF citizen-science data. It is the 113th most-seen of the 742 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.
October to May
In those months about 10% of wildlife watchers report a Common Glider in Sydney on a given day, against under 5% in June to September, the lowest months.
Between 10 am and 1 pm
Across all the parks we cover, that three-hour window holds the most Common Glider sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Among the best
Of the 2 cities where we can rate Common Glider sightings, Sydney ranks 2nd at about 10%, level with the leaders once rounded. The best odds are in Brisbane (Australia, about 10%).
Same family: Libellulidae
The closest relatives of the Common Glider that you can see in Sydney (family Libellulidae, Skimmers) are Fiery Skimmer (about 20%), Scarlet Percher (about 10%) and Wandering Percher (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Common Glider is recorded against all the insects logged in Sydney (96 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.
