Zethus slossonae
In 3 days ~30% in a week ~50%
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 |
With luck
About 10% of wildlife watchers report a Slosson's Mason Wasp sighting in Merritt Island National Wildlife Refuge on a given day, based on 21 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 62nd most-seen of the 189 insects we can rate there. Over three days the chance rises to about 30%, and over a week to about 50%, if each day is a fresh chance.
January
In that month about 20% of wildlife watchers report a Slosson's Mason Wasp in Merritt Island National Wildlife Refuge on a given day, against under 5% in April–July 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.
3rd of 3
Of the 3 parks where we can rate Slosson's Mason Wasp sightings, Merritt Island National Wildlife Refuge ranks 3rd at about 10%. The best odds are in Big Cypress National Preserve (United States, about 20%) and Everglades National Park (United States, about 10%).
GBIF citizen-science records
It is estimated from how often the Slosson's Mason Wasp is recorded against all the insects logged in Merritt Island National Wildlife Refuge (21 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.
