Euthyrhynchus floridanus
In 3 days ~10% in a week ~30%
Euthyrhynchus floridanus, the Florida predatory stink bug, is a species of carnivorous shield bug in the family Pentatomidae, the only species in the genus Euthyrhynchus. It is native to the hottest parts of the southeastern United States and is considered beneficial because its diet includes many species of pest insects.
The adult male Florida predatory stink bug is approximately 12 mm (0.5 in) long while the female can reach 17 mm (0.7 in) in length. The appearance is somewhat variable, but the ground colour is usually bluish-black or purplish-brown, and there are characteristic red spots at the sides and rear of the scutellum. There is also a distinctive spine on the humerus, but this species lacks the spine on the underside of the femur on the front leg that exists in other similar species found in Florida. The first segment of the beak-like mouthparts is short and thick which is in contrast to the slender mouthparts of its herbivorous, sap-sucking relatives.
The female lays batches of between twenty and ninety eggs. These are barrel-shaped and have a number of small projections at the edge of the operculum. The nymphs go through five instars in... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Lago de Yojoa | 🇭🇳 Honduras | |
| 2 | Congaree National Park | 🇺🇸 United States | |
| 3 | Great Smoky Mountains National Park | 🇺🇸 United States | |
| 4 | Monteverde Cloud Forest Reserve | 🇨🇷 Costa Rica | |
| 5 | Cumbres de Monterrey National Park | 🇲🇽 Mexico |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Washington | 🇺🇸 United States | |
| 2 | Baltimore | 🇺🇸 United States | |
| 3 | San José | 🇨🇷 Costa Rica | |
| 4 | Guadalajara | 🇲🇽 México | |
| 5 | Miami | 🇺🇸 United States |
Rare
Under 5% of wildlife watchers report a Florida Predatory Stink Bug sighting in Cumbres de Monterrey National Park on a given day, based on 10 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 235th most-seen of the 431 insects we can rate there. Over three days the chance rises to about 10%, and over a week to about 30%, if each day is a fresh chance.
April–June and November–December
In those months about 10% of wildlife watchers report a Florida Predatory Stink Bug in Cumbres de Monterrey National Park on a given day, against under 5% in January–March and July–October, the lowest months.
Between 9 am and noon
Across all the parks we cover, that three-hour window holds the most Florida Predatory Stink Bug sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
5th of 5
Of the 5 parks where we can rate Florida Predatory Stink Bug sightings, Cumbres de Monterrey National Park ranks 5th at under 5%. The best odds are in Lago de Yojoa (Honduras, about 10%), Congaree National Park (United States, about 10%) and Great Smoky Mountains National Park (United States, about 10%).
GBIF citizen-science records
It is estimated from how often the Florida Predatory Stink Bug is recorded against all the insects logged in Cumbres de Monterrey National Park (10 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.
