Woolly Darkling Beetle

Woolly Darkling Beetle

Eleodes osculans

Daily sighting probability <5% · Rare
at San Diego

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

112 Verified sightings at San Diego
9 In 1 park From 2019 to 2026
April Best month
🌙 Nocturnal When it's spotted

About the Woolly Darkling Beetle

Eleodes osculans, the wooly darkling beetle or woolly ground beetle, is a common insect in coastal southern and central California in wooded areas or chaparral, and in Baja California. As a stink beetle of genus Eleodes, its easily observed defensive posture is to raise its hind end and secrete an unpleasant odor. E. osculans has a length of 12–16 mm and is the only known darkling beetle species with reddish-brown hair covering most of its black exoskeleton. It is similar to Eleodes nigropilosa and Eleodes littoralis, which have darker hair. Wikipedia →

Global Distribution

Parks Where Found

# Park Country Daily sighting probability
1 Channel Islands National Park 🇺🇸 United States
~10%

More parks will be added in future updates.

Cities Where Found

# City Country Daily sighting probability
1 Los Angeles 🇺🇸 United States
~10%
2 San Diego 🇺🇸 United States
<5%

Before you go

What are the chances of seeing a Woolly Darkling Beetle in San Diego?

Rare

Under 5% of wildlife watchers report a Woolly Darkling Beetle sighting in San Diego on a given day, based on 112 verified sightings from GBIF citizen-science data. It is the 92nd most-seen of the 693 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 a Woolly Darkling Beetle in San Diego?

March–May and November

In those months about 10% of wildlife watchers report a Woolly Darkling Beetle in San Diego on a given day, against under 5% in June–October and December–February, the lowest months.

What time of day is best to see a Woolly Darkling Beetle?

Between 7 and 10 pm

Across all the parks we cover, that three-hour window holds the most Woolly Darkling Beetle sightings with a recorded time, and about 8 in 10 of them come between 6 pm and 6 am: it is mostly seen at night.

Is San Diego the best place to see a Woolly Darkling Beetle?

2nd of 2

Of the 2 cities where we can rate Woolly Darkling Beetle sightings, San Diego ranks 2nd at under 5%. The best odds are in Los Angeles (United States, about 10%).

Where does the Woolly Darkling Beetle sighting chance come from?

GBIF citizen-science records

It is estimated from how often the Woolly Darkling Beetle is recorded against all the insects logged in San Diego (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.

← Back to San Diego