Sugarcane Soldier Fly

Sugarcane Soldier Fly

Inopus rubriceps

Daily sighting probability <5% · Rare
at San Francisco

In 3 days ~10% in a week ~20%

129 Verified sightings at San Francisco
10 In 1 park From 2019 to 2026
October Best month
☀️ Diurnal When it's spotted

About the Sugarcane Soldier Fly

Inopus rubriceps, known generally as the sugarcane soldier fly or Australian soldier fly, is a species of soldier fly in the family Stratiomyidae. The fly acts as a host for the parasitoid wasps Neurogalesus carinatus and Neurogalesus militis. The species causes damage to pasture, as well as oat and maize crops, however the degree of damage it causes means it is not considered a major pest.

Though native to South East Queensland and northern New South Wales areas in Australia, its introduced range includes California and New Zealand. Populations tend to prefer warm, moist climates in subtropical/tropical regions, and no related species occur in its native range, suggesting a long evolutionary history for the fly in the region. The species was first recorded in New Zealand in 1944, appearing at Ōpōtiki in the Bay of Plenty in the North Island. Wikipedia →

Global Distribution

Parks Where Found

# Park Country Daily sighting probability
1 Egmont National Park 🇳🇿 New Zealand
~10%

More parks will be added in future updates.

Cities Where Found

# City Country Daily sighting probability
1 Auckland 🇳🇿 New Zealand
<5%
2 San Francisco 🇺🇸 United States
<5%
3 Melbourne 🇦🇺 Australia
<5%

Before you go

What are the chances of seeing a Sugarcane Soldier Fly in San Francisco?

Rare

Under 5% of wildlife watchers report a Sugarcane Soldier Fly sighting in San Francisco on a given day, based on 129 verified sightings from GBIF citizen-science data. It is the 141st most-seen of the 737 insects we can rate there. Over three days the chance rises to about 10%, and over a week to about 20%, if each day is a fresh chance.

When is the best time to see a Sugarcane Soldier Fly in San Francisco?

September and October

In those months about 10% of wildlife watchers report a Sugarcane Soldier Fly in San Francisco on a given day, against under 5% in November to August, the lowest months. Those are among San Francisco's driest months, with about 15 mm of rain a month against 110 mm in December.

What time of day is best to see a Sugarcane Soldier Fly?

Between noon and 3 pm

Across all the parks we cover, that three-hour window holds the most Sugarcane Soldier Fly sightings with a recorded time, and nearly all of them come between 6 am and 6 pm: it is a daytime animal.

Is San Francisco the best place to see a Sugarcane Soldier Fly?

Among the best

Of the 3 cities where we can rate Sugarcane Soldier Fly sightings, San Francisco ranks 2nd at under 5%, level with the leaders once rounded. The best odds are in Auckland (New Zealand, under 5%).

Where does the Sugarcane Soldier Fly sighting chance come from?

GBIF citizen-science records

It is estimated from how often the Sugarcane Soldier Fly is recorded against all the insects logged in San Francisco (129 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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