Nannophlebia risi
In 3 days ~10% in a week ~30%
Nannophlebia risi, known as the common archtail, is a species of dragonfly in the family Libellulidae. It is endemic to Australia. Common archtails are small dragonflies (wingspan 50-60mm, length 35-40mm) having a black abdomen marked with small yellow bands or patches. The abdomen is arched with swollen segments towards the end. The synthorax is black, marked with large yellowish or greenish patches. The wings are hyaline with brown markings on the inner third.
The reference field guide shows its distribution extends from the Northern Territory, to Queensland (except for northern Cape York), coastal New South Wales and coastal Victoria. They inhabit streams and rivers, and the larvae are found near gravel or stones.
The taxon has been assessed for the IUCN Red List as least concern. The genus name Nannophlebia is derived from the Greek νάννος (nannos, "dwarf") and φλέψ (phleps, "vein"). The name combines elements used in the existing genera Nannophya and Neophlebia. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Lamington National Park | 🇦🇺 Australia | |
| 2 | Springbrook National Park | 🇦🇺 Australia |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Brisbane | 🇦🇺 Australia |
Rare
Under 5% of wildlife watchers report a Common Archtail sighting in Brisbane on a given day, based on 32 verified sightings from GBIF citizen-science data. It is the 406th 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 30%, if each day is a fresh chance.
February to April
In those months about 10% of wildlife watchers report a Common Archtail in Brisbane on a given day, against under 5% in May to January, the lowest months.
Between 8 and 11 am
Across all the parks we cover, that three-hour window holds the most Common Archtail sightings with a recorded time, and nearly all of them come between 6 am and 6 pm: it is a daytime animal.
Only Brisbane, in our data
Brisbane is the only city on Wallace's Line with enough records to rate Common Archtail sightings: under 5% of wildlife watchers there report one on a given day.
Same family: Libellulidae
The closest relatives of the Common Archtail that you can see in Brisbane (family Libellulidae, Skimmers) are Wandering Percher (about 20%), Fiery Skimmer (about 20%) and Blue Skimmer (about 20%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Common Archtail is recorded against all the insects logged in Brisbane (32 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.
