Slosson's Mason Wasp

Slosson's Mason Wasp

Zethus slossonae

Daily sighting probability <5% · Rare
at Miami

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

27 Verified sightings at Miami
116 In all 3 parks From 2019 to 2026
December Best month
☀️ Diurnal When it's spotted

About the Slosson's Mason Wasp

Zethus slossonae, known as slosson's mason wasp, is a species of stinging wasp in the family Vespidae. Wikipedia →

Global Distribution

Parks Where Found

# Park Country Daily sighting probability
1 Big Cypress National Preserve 🇺🇸 United States
~20%
2 Everglades National Park 🇺🇸 United States
~10%
3 Merritt Island National Wildlife Refuge 🇺🇸 United States
~10%

Cities Where Found

# City Country Daily sighting probability
1 Orlando 🇺🇸 United States
<5%
2 Miami 🇺🇸 United States
<5%

Before you go

What are the chances of seeing a Slosson's Mason Wasp in Miami?

Rare

Under 5% of wildlife watchers report a Slosson's Mason Wasp sighting in Miami on a given day, based on 27 verified sightings from GBIF citizen-science data. It is the 293rd most-seen of the 826 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 Slosson's Mason Wasp in Miami?

December

In that month about 10% of wildlife watchers report a Slosson's Mason Wasp in Miami on a given day, against under 5% in January to November, the lowest months. That is one of Miami's driest months, with about 50 mm of rain against 190 mm in June.

What time of day is best to see a Slosson's Mason Wasp?

Between 11 am and 2 pm

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

Is Miami the best place to see a Slosson's Mason Wasp?

Among the best

Of the 2 cities where we can rate Slosson's Mason Wasp sightings, Miami ranks 2nd at under 5%, level with the leaders once rounded. The best odds are in Orlando (United States, under 5%).

Which relatives of the Slosson's Mason Wasp live in Miami?

Same family: Eumenidae

The closest relatives of the Slosson's Mason Wasp that you can see in Miami (family Eumenidae) are Hunter's Little Paper Wasp (about 10%), Horse Paper Wasp (about 10%) and Keyhole Wasp (about 10%), with each one's daily chance of a sighting.

Where does the Slosson's Mason Wasp sighting chance come from?

GBIF citizen-science records

It is estimated from how often the Slosson's Mason Wasp is recorded against all the insects logged in Miami (27 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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