Trigonospila brevifacies
In 3 days ~30% in a week ~60%
Trigonospila brevifacies is a species of true fly in the family Tachinidae native to eastern Australia. This species is also found in New Zealand. Like the vast majority of tachinid flies, T. brevifacies is a parasitoid of other insects, specifically late larval stages of a number of species of Lepidoptera. It is also known as the Australian Leaf-Roller Fly or Leafroller Fly.
Trigonospila brevifacies is native to the eastern states of Australia and has been collected from Tasmania, New South Wales, Victoria, and southern Queensland. T. brevifacies is also present in New Zealand as it was introduced to control a number of agricultural pests.
Like all Trigonospila species, T. brevifacies can be recognised by its distinctive markings. They are primarily black with pearly whitish to golden transverse bars on the thorax and abdomen. Trigonospila brevifacies is frequently confused with T. cingulata in locations where both species co-occur. T. cingulata appears to much more common than T. brevifacies, particularly in Queensland, New South Wales, and the Australian Capital Territory. It is believed T. cingulata is a parasitoid of chrysomelid beetle larvae... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Egmont National Park | 🇳🇿 New Zealand |
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Auckland | 🇳🇿 New Zealand |
With luck
About 10% of wildlife watchers report an Australian Leafroller Tachinid sighting in Egmont National Park on a given day, based on 9 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 69th most-seen of the 191 insects we can rate there. Over three days the chance rises to about 30%, and over a week to about 60%, if each day is a fresh chance.
February–March and September–November
In those months about 20% of wildlife watchers report an Australian Leafroller Tachinid in Egmont National Park on a given day, against under 5% in May–August and December, the lowest months.
Between 3 and 6 pm
Across all the parks we cover, that three-hour window holds the most Australian Leafroller Tachinid sightings with a recorded time, and nearly all of them come between 6 am and 6 pm: it is a daytime animal.
Only Egmont National Park, in our data
Egmont National Park is the only park on Wallace's Line with enough records to rate Australian Leafroller Tachinid sightings: about 10% of wildlife watchers there report one on a given day.
GBIF citizen-science records
It is estimated from how often the Australian Leafroller Tachinid is recorded against all the insects logged in Egmont National Park (9 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.
