Hydaticus bimarginatus
In 3 days ~20% in a week ~40%
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Big Cypress National Preserve | 🇺🇸 United States |
More parks will be added in future updates.
With luck
About 10% of wildlife watchers report a Hydaticus bimarginatus sighting in Big Cypress National Preserve on a given day, based on 7 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 220th most-seen of the 262 insects we can rate there. Over three days the chance rises to about 20%, and over a week to about 40%, if each day is a fresh chance.
May
In that month about 30% of wildlife watchers report a Hydaticus bimarginatus in Big Cypress National Preserve on a given day, against under 5% in June–July and September–April, the lowest months.
Between 8 and 11 pm
Across all the parks we cover, that three-hour window holds the most Hydaticus bimarginatus sightings with a recorded time, and nearly all of them come between 6 pm and 6 am: it is mostly seen at night.
Only Big Cypress National Preserve, in our data
Big Cypress National Preserve is the only park on Wallace's Line with enough records to rate Hydaticus bimarginatus sightings: about 10% of wildlife watchers there report one on a given day.
Same family: Dytiscidae
The closest relatives of the Hydaticus bimarginatus that you can see in Big Cypress National Preserve (family Dytiscidae, Predaceous Diving Beetles) are Fringed Diving Beetle (about 10%) and Neobidessus pullus (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Hydaticus bimarginatus is recorded against all the insects logged in Big Cypress National Preserve (7 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.
