Benacus griseus
In 3 days ~40% in a week ~70%
Benacus griseus is a species of giant water bug in the family Belostomatidae. It is the only species in the genus Benacus, which was formerly considered a subgenus of Lethocerus. Benacus griseus is found throughout eastern North America, from New England, west through southern Ontario and to Nebraska, south to Florida and Texas, along the Gulf of Mexico coast in Mexico, and into Cuba.
Adults reach lengths of 47–64 mm, making them one of the largest aquatic insect species found in eastern North America. It is distinguished from other Lethocerinae species by the lack of a groove on its front femur. It is also characterized by a wide hind tibia and black ventral stripes. 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 | Orlando | 🇺🇸 United States | |
| 2 | Miami | 🇺🇸 United States | |
| 3 | Houston | 🇺🇸 United States | |
| 4 | Washington | 🇺🇸 United States |
Possible
About 20% of wildlife watchers report an Eastern Toe-Biter sighting in Big Cypress National Preserve on a given day, based on 29 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 34th 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.
July and September
In those months about 30% of wildlife watchers report an Eastern Toe-Biter in Big Cypress National Preserve on a given day, against under 5% in January, the lowest month. Those are among Big Cypress National Preserve's wettest months, with about 230 mm of rain a month against 40 mm in March.
Between 8 and 11 pm
Across all the parks we cover, that three-hour window holds the most Eastern Toe-Biter 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 Eastern Toe-Biter sightings, Big Cypress National Preserve has the highest daily chance: about 20%. Next come Everglades National Park (United States, about 10%).
GBIF citizen-science records
It is estimated from how often the Eastern Toe-Biter is recorded against all the insects logged in Big Cypress National Preserve (29 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.
