Zethus slossonae
In 3 days ~40% in a week ~70%
Zethus slossonae, known as slosson's mason wasp, is a species of stinging wasp in the family Vespidae. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Big Cypress National Preserve | 🇺🇸 United States | |
| 2 | Everglades National Park | 🇺🇸 United States | |
| 3 | Merritt Island National Wildlife Refuge | 🇺🇸 United States |
Possible
About 20% of wildlife watchers report a Slosson's Mason Wasp sighting in Big Cypress National Preserve on a given day, based on 23 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 46th most-seen of the 262 insects we can rate there. Over three days the chance rises to about 40%, and over a week to about 70%, if each day is a fresh chance.
February and July–August
In those months about 30% of wildlife watchers report a Slosson's Mason Wasp in Big Cypress National Preserve on a given day, against under 5% in May–June and October, the lowest months.
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.
Yes
Of the 3 parks where we can rate Slosson's Mason Wasp sightings, Big Cypress National Preserve has the highest daily chance: about 20%. Next come Everglades National Park (United States, about 10%) and Merritt Island National Wildlife Refuge (United States, about 10%).
Same family: Eumenidae
The closest relatives of the Slosson's Mason Wasp that you can see in Big Cypress National Preserve (family Eumenidae) are Bahamian Paper Wasp (about 10%), Hunter's Little Paper Wasp (about 10%) and Southern Paper Wasp (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Slosson's Mason Wasp is recorded against all the insects logged in Big Cypress National Preserve (23 verified sightings from 2019 to 2026), 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.
