Nososticta fraterna
In 3 days ~60% in a week ~90%
Nososticta fraterna is an Australian species of damselfly in the family Platycnemididae, commonly known as the northern threadtail. Its usual habitat is near rivers, riverine lagoons and streams. The adult is a small to medium-sized damselfly with a wingspan of 25 to 35mm. The adult is dark with pale stripes on the synthorax. The wings are tinted with lemon-yellow in the male, and generally hyaline in the female. In Australia, the distribution is in suitable habitat in the north and eastern part of the continent from the top end of the Northern Territory to the northern half of Queensland. The taxon has not been assessed in the IUCN Red List, but it is listed in the Catalogue of Life.
The genus name Nososticta combines the Greek νόσος (nosos, "disease") with στικτός (stiktos, "spotted" or "marked"). The suffix -sticta is commonly used in names of taxa related to Protoneura and the subfamily Isostictinae.
The species name fraterna is Latin for "brotherly", referring to its similarity to Notoneura solitaria. List of Odonata species of Australia Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Nitmiluk National Park | 🇦🇺 Australia |
More parks will be added in future updates.
Possible
About 20% of wildlife watchers report a Northern Threadtail sighting in Nitmiluk National Park on a given day, based on 6 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 12th most-seen of the 17 insects we can rate there. Over three days the chance rises to about 60%, and over a week to about 90%, if each day is a fresh chance.
April
In that month about 50% of wildlife watchers report a Northern Threadtail in Nitmiluk National Park on a given day, against under 5% in May, July and September–October, the lowest months. That is one of Nitmiluk National Park's driest months, with about 45 mm of rain against 270 mm in January.
Between 10 am and 1 pm
Across all the parks we cover, that three-hour window holds the most Northern Threadtail sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Only Nitmiluk National Park, in our data
Nitmiluk National Park is the only park on Wallace's Line with enough records to rate Northern Threadtail sightings: about 20% of wildlife watchers there report one on a given day.
Same order: Odonata
The closest relatives of the Northern Threadtail that you can see in Nitmiluk National Park (order Odonata, Dragonflies and Damselflies) are Scarlet Percher (about 70%), Blue Skimmer (about 40%) and Pygmy Percher (about 30%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Northern Threadtail is recorded against all the insects logged in Nitmiluk National Park (6 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.
