Black Pasture Fly

Black Pasture Fly

Hydrellia tritici

Daily sighting probability ~10% · With luck
at Melbourne

In 3 days ~20% in a week ~30%

112 Verified sightings at Melbourne
26 In all 2 parks From 2019 to 2026
July Best month
☀️ Diurnal When it's spotted

About the Black Pasture Fly

Hydrellia tritici, the black pasture fly or shore fly, is an insect native to Australia. Wikipedia →

Global Distribution

Parks Where Found

# Park Country Daily sighting probability
1 Great Otway National Park 🇦🇺 Australia
~10%
2 Blue Mountains National Park 🇦🇺 Australia
~10%

Cities Where Found

# City Country Daily sighting probability
1 Auckland 🇳🇿 New Zealand
~10%
2 Melbourne 🇦🇺 Australia
~10%
3 Sydney 🇦🇺 Australia
<5%

Before you go

What are the chances of seeing a Black Pasture Fly in Melbourne?

With luck

About 10% of wildlife watchers report a Black Pasture Fly sighting in Melbourne on a given day, based on 112 verified sightings from GBIF citizen-science data. It is the 133rd most-seen of the 875 insects we can rate there. Over three days the chance rises to about 20%, and over a week to about 30%, if each day is a fresh chance.

When is the best time to see a Black Pasture Fly in Melbourne?

February, April and July–December

In those months about 10% of wildlife watchers report a Black Pasture Fly in Melbourne on a given day, against under 5% in January, March and May–June, the lowest months.

What time of day is best to see a Black Pasture Fly?

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.

Is Melbourne the best place to see a Black Pasture Fly?

Among the best

Of the 3 cities where we can rate Black Pasture Fly sightings, Melbourne ranks 2nd at about 10%, level with the leaders once rounded. The best odds are in Auckland (New Zealand, about 10%).

Where does the Black Pasture Fly sighting chance come from?

GBIF citizen-science records

It is estimated from how often the Black Pasture Fly is recorded against all the insects logged in Melbourne (112 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.

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