Stanford's Whitefly

Stanford's Whitefly

Tetraleurodes perileuca

Daily sighting probability <5% · Rare
at San Francisco

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

114 Verified sightings at San Francisco
10 In all 2 parks From 2019 to 2026
February Best month
☀️ Diurnal When it's spotted

Global Distribution

Parks Where Found

# Park Country Daily sighting probability
1 Joshua Tree National Park 🇺🇸 United States
<5%
2 Yosemite National Park 🇺🇸 United States
<5%

Cities Where Found

# City Country Daily sighting probability
1 San Francisco 🇺🇸 United States
<5%
2 Los Angeles 🇺🇸 United States
<5%

Before you go

What are the chances of seeing a Stanford's Whitefly in San Francisco?

Rare

Under 5% of wildlife watchers report a Stanford's Whitefly sighting in San Francisco on a given day, based on 114 verified sightings from GBIF citizen-science data. It is the 139th 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 Stanford's Whitefly in San Francisco?

February

In that month about 10% of wildlife watchers report a Stanford's Whitefly in San Francisco on a given day, against under 5% in March to January, the lowest months. That is one of San Francisco's wettest months, with about 90 mm of rain against almost none in July.

What time of day is best to see a Stanford's Whitefly?

Between 11 am and 2 pm

Across all the parks we cover, that three-hour window holds the most Stanford's Whitefly sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.

Is San Francisco the best place to see a Stanford's Whitefly?

Yes

Of the 2 cities where we can rate Stanford's Whitefly sightings, San Francisco has the highest daily chance: under 5%. Next come Los Angeles (United States, under 5%).

Where does the Stanford's Whitefly sighting chance come from?

GBIF citizen-science records

It is estimated from how often the Stanford's Whitefly is recorded against all the insects logged in San Francisco (114 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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