Hydrellia tritici
In 3 days ~20% in a week ~50%
Hydrellia tritici, the black pasture fly or shore fly, is an insect native to Australia. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Great Otway National Park | 🇦🇺 Australia | |
| 2 | Blue Mountains National Park | 🇦🇺 Australia |
With luck
About 10% of wildlife watchers report a Black Pasture Fly sighting in Auckland on a given day, based on 59 verified sightings from GBIF citizen-science data. It is the 128th most-seen of the 689 insects we can rate there. Over three days the chance rises to about 20%, and over a week to about 50%, if each day is a fresh chance.
November
In that month about 20% of wildlife watchers report a Black Pasture Fly in Auckland on a given day, against under 5% in March–April and August, the lowest months.
Between 11 am and 2 pm
Across all the parks we cover, that three-hour window holds the most Black Pasture Fly sightings with a recorded time, and about 8 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Yes
Of the 3 cities where we can rate Black Pasture Fly sightings, Auckland has the highest daily chance: about 10%. Next come Melbourne (Australia, about 10%) and Sydney (Australia, under 5%).
Same order: Diptera
The closest relatives of the Black Pasture Fly that you can see in Auckland (order Diptera, Flies) are Common Drone Fly (about 20%), Garden Soldier Fly (about 20%) and Austrosciapus proximus (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Black Pasture Fly is recorded against all the insects logged in Auckland (59 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.
