Lethocerus medius
In 3 days ~10% in a week ~20%
Lethocerus medius is a species of giant water bug in the family Belostomatidae. It is found in Central America from northern Panama north throughout Mexico to southern Arizona, New Mexico, and Texas in the United States, and Cuba, Jamaica, the Cayman Islands, and the Bahamas.
They grow up to 49–58 mm for males and 62–63 mm of females. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Big Bend National Park | 🇺🇸 United States | |
| 2 | Saguaro National Park | 🇺🇸 United States | |
| 3 | Cumbres de Monterrey National Park | 🇲🇽 Mexico |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Monterrey | 🇲🇽 México | |
| 2 | San Antonio | 🇺🇸 United States | |
| 3 | Austin | 🇺🇸 United States |
Rare
Under 5% of wildlife watchers report a Lethocerus medius sighting in Monterrey on a given day, based on 8 verified sightings from GBIF citizen-science data. It is the 282nd most-seen of the 413 insects we can rate there. Over three days the chance rises to about 10%, and over a week to about 20%, if each day is a fresh chance.
September and December
In those months about 10% of wildlife watchers report a Lethocerus medius in Monterrey on a given day, against under 5% in January–August and October–November, the lowest months. Those are among Monterrey's wettest months, with about 110 mm of rain a month against 20 mm in February.
Between 8 and 11 pm
Across all the parks we cover, that three-hour window holds the most Lethocerus medius sightings with a recorded time, and about 6 in 10 of them come between 6 pm and 6 am: it is seen both by day and at night.
Yes
Of the 3 cities where we can rate Lethocerus medius sightings, Monterrey has the highest daily chance: under 5%. Next come San Antonio (United States, under 5%) and Austin (United States, under 5%).
Same order: Hemiptera
The closest relatives of the Lethocerus medius that you can see in Monterrey (order Hemiptera, True Bugs, Hoppers, Aphids, and allies) are Red-Shouldered Bug (about 10%), Acanthocephala alata (about 10%) and Prosapia simulans (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Lethocerus medius is recorded against all the insects logged in Monterrey (8 verified sightings), 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.
