Benacus griseus
In 3 days ~20% in a week ~30%
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 |
With luck
About 10% of wildlife watchers report an Eastern Toe-Biter sighting in Everglades National Park on a given day, based on 13 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 213th most-seen of the 496 insects we can rate there. Over three days the chance rises to about 20%, and over a week to about 30%, if each day is a fresh chance.
May–July, September and December–January
In those months about 10% of wildlife watchers report an Eastern Toe-Biter in Everglades National Park on a given day, against under 5% in February–April, August and October–November, the lowest months.
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.
2nd of 2
Of the 2 parks where we can rate Eastern Toe-Biter sightings, Everglades National Park ranks 2nd at about 10%. The best odds are in Big Cypress National Preserve (United States, about 20%).
GBIF citizen-science records
It is estimated from how often the Eastern Toe-Biter is recorded against all the insects logged in Everglades National Park (13 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.
