Anthidiellum robertsoni

Anthidiellum robertsoni

Anthidiellum robertsoni

Daily sighting probability <5% · Rare
at Sacramento

In 3 days ~10% in a week ~30%

14 Verified sightings at Sacramento
August Best month

Global Distribution

Parks Where Found

# Park Country Daily sighting probability

More parks will be added in future updates.

Cities Where Found

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

Before you go

What are the chances of seeing an Anthidiellum robertsoni in Sacramento?

Rare

Under 5% of wildlife watchers report an Anthidiellum robertsoni sighting in Sacramento on a given day, based on 14 verified sightings from GBIF citizen-science data. It is the 192nd most-seen of the 386 insects we can rate there. Over three days the chance rises to about 10%, and over a week to about 30%, if each day is a fresh chance.

When is the best time to see an Anthidiellum robertsoni in Sacramento?

June and August

In those months about 10% of wildlife watchers report an Anthidiellum robertsoni in Sacramento on a given day, against under 5% in July and September–May, the lowest months. Those are among Sacramento's driest months, with almost no rain against 120 mm in December.

Is Sacramento the best place to see an Anthidiellum robertsoni?

Yes

Of the 3 cities where we can rate Anthidiellum robertsoni sightings, Sacramento has the highest daily chance: under 5%. Next come San Francisco (United States, under 5%) and Los Angeles (United States, under 5%).

Which relatives of the Anthidiellum robertsoni live in Sacramento?

Same family: Megachilidae

The closest relatives of the Anthidiellum robertsoni that you can see in Sacramento (family Megachilidae, Mason, Leafcutter, Carder, and Resin Bees) are European Woolcarder Bee (about 20%), Western Leafcutter Bee (about 10%) and Spotted Woolcarder (about 10%), with each one's daily chance of a sighting.

Where does the Anthidiellum robertsoni sighting chance come from?

GBIF citizen-science records

It is estimated from how often the Anthidiellum robertsoni is recorded against all the insects logged in Sacramento (14 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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