California Digger-Cuckoo Bee

California Digger-Cuckoo Bee

Brachymelecta californica

Daily sighting probability <5% · Rare
at San Francisco

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

25 Verified sightings at San Francisco
5 In 1 park From 2019 to 2026
September Best month
☀️ Diurnal When it's spotted

About the California Digger-Cuckoo Bee

Brachymelecta californica, also known as the California digger-cuckoo bee, is a species of cuckoo bee in the family Apidae, found in Central America and North America. Wikipedia →

Global Distribution

Parks Where Found

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

More parks will be added in future updates.

Cities Where Found

# City Country Daily sighting probability
1 Phoenix 🇺🇸 United States
~10%
2 Mesa 🇺🇸 United States
~10%
3 Los Angeles 🇺🇸 United States
<5%
4 Denver 🇺🇸 United States
<5%
5 San Francisco 🇺🇸 United States
<5%

Before you go

What are the chances of seeing a California Digger-Cuckoo Bee in San Francisco?

Rare

Under 5% of wildlife watchers report a California Digger-Cuckoo Bee sighting in San Francisco on a given day, based on 25 verified sightings from GBIF citizen-science data. It is the 356th 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 California Digger-Cuckoo Bee in San Francisco?

Any time of year

In every month with enough records, under 5% of wildlife watchers report a California Digger-Cuckoo Bee in San Francisco on a given day, so our monthly data shows no clear season.

What time of day is best to see a California Digger-Cuckoo Bee?

Between noon and 3 pm

Across all the parks we cover, that three-hour window holds the most California Digger-Cuckoo Bee 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 California Digger-Cuckoo Bee?

5th of 5

Of the 5 cities where we can rate California Digger-Cuckoo Bee sightings, San Francisco ranks 5th at under 5%. The best odds are in Phoenix (United States, about 10%), Mesa (United States, about 10%) and Los Angeles (United States, under 5%).

Which relatives of the California Digger-Cuckoo Bee live in San Francisco?

Same family: Apidae

The closest relatives of the California Digger-Cuckoo Bee that you can see in San Francisco (family Apidae, Honey Bees, Bumble Bees, and Allies) are Black-Tailed Bumble Bee (about 10%), Yellow-Faced Bumble Bee (about 10%) and Valley Carpenter Bee (about 10%), with each one's daily chance of a sighting.

Where does the California Digger-Cuckoo Bee sighting chance come from?

GBIF citizen-science records

It is estimated from how often the California Digger-Cuckoo Bee is recorded against all the insects logged in San Francisco (25 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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