Tropisternus collaris
In 3 days ~20% in a week ~40%
Tropisternus collaris, the collared water scavenger beetle, is a species of water scavenger beetle in the family Hydrophilidae. It is found in the Caribbean, North America, and South America. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Big Cypress National Preserve | 🇺🇸 United States | |
| 2 | Everglades National Park | 🇺🇸 United States |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Dallas | 🇺🇸 United States | |
| 2 | Austin | 🇺🇸 United States | |
| 3 | Miami | 🇺🇸 United States | |
| 4 | Houston | 🇺🇸 United States | |
| 5 | Washington | 🇺🇸 United States |
With luck
About 10% of wildlife watchers report a Tropisternus collaris sighting in Big Cypress National Preserve on a given day, based on 6 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 193rd 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.
June and August
In those months about 20% of wildlife watchers report a Tropisternus collaris in Big Cypress National Preserve on a given day, against under 5% in February, May, July and September–December, the lowest months. Those are among Big Cypress National Preserve's wettest months, with about 230 mm of rain a month against 40 mm in March.
Between 9 pm and midnight
Across all the parks we cover, that three-hour window holds the most Tropisternus collaris 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.
Yes
Of the 2 parks where we can rate Tropisternus collaris sightings, Big Cypress National Preserve has the highest daily chance: about 10%. Next come Everglades National Park (United States, under 5%).
GBIF citizen-science records
It is estimated from how often the Tropisternus collaris is recorded against all the insects logged in Big Cypress National Preserve (6 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.
