Tramea stenoloba
In 3 days ~10% in a week ~20%
Tramea stenoloba, commonly known as the narrow-lobed glider, is a species of dragonfly in the family Libellulidae. It occurs in the Cocos Islands, Lesser Sunda Islands, the Java Sea region and Australia. In Australia it is widespread except for the far south-east of the continent.
Tramea stenoloba is a medium to large dragonfly with a predominantly red thorax, dark patches at the base of the hindwings, and a red abdomen with black terminal segments. Females are duller brown. In 1962, Watson established Trapezostigma stenoloba as a new species from material collected in Western Australia.
In 1967, Watson reviewed Indo-Australian species of the Trapezostigma eurybia group, providing a detailed analysis of Trapezostigma stenoloba and its relationships with related species including Trapezostigma eurybia and Trapezostigma loewii.
The genus Trapezostigma is now treated as a synonym of Tramea. Tramea stenoloba is similar in appearance to Tramea loewii, but differs in the colouration of the thorax and the structure of the male secondary genitalia. The thorax is almost uniformly red, with only limited dark markings along the sutures. The dark patch... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Brisbane | 🇦🇺 Australia |
Rare
Under 5% of wildlife watchers report a Narrow-Lobed Glider sighting in Brisbane on a given day, based on 14 verified sightings from GBIF citizen-science data. It is the 636th most-seen of the 1083 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.
December
In that month about 10% of wildlife watchers report a Narrow-Lobed Glider in Brisbane on a given day, against under 5% in January to November, the lowest months. That is one of Brisbane's wettest months, with about 130 mm of rain against 40 mm in July.
Only Brisbane, in our data
Brisbane is the only city on Wallace's Line with enough records to rate Narrow-Lobed Glider sightings: under 5% of wildlife watchers there report one on a given day.
GBIF citizen-science records
It is estimated from how often the Narrow-Lobed Glider is recorded against all the insects logged in Brisbane (14 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.
