Brachymyrmex patagonicus
In 3 days ~10% in a week ~20%
Brachymyrmex patagonicus, also known as the black rover ant, is a species of Formicine ant native to Mexico, Central America, South America, and invasive in the United States and Europe. They were first reported in St. Tammany Parish, Louisiana in 1978 from a single colony collected in 1976. It is believed that the species was introduced through New Orleans, which is a common entry point for many tropical species, but other locations such as Mobile, Alabama, or Pensacola, Florida, are also likely. For many years B. patagonicus, B. musculus, and B. obscurior were misidentified as being separate species but after a comparison of specimens from the Louisiana State University Arthropod Collection (LSUC), it was found that all three were the same species. B. patagonicus is considered a nuisance pest due to their tendency to infest man-made structures but have received a lack of attention because they do not bite, sting, or carry disease.
Dark rover ants are small brown ants that are typically less than 2.5 millimeters in length. Worker ants in this species range from 1.0mm to 2.0mm, whereas queens are around 3.0mm. Males are around 1.0mm in length. The antennae of the... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Saguaro National Park | 🇺🇸 United States |
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Mesa | 🇺🇸 United States | |
| 2 | Las Vegas | 🇺🇸 United States | |
| 3 | Phoenix | 🇺🇸 United States | |
| 4 | Austin | 🇺🇸 United States | |
| 5 | San Antonio | 🇺🇸 United States | |
| 6 | Dallas | 🇺🇸 United States | |
| 7 | Houston | 🇺🇸 United States | |
| 8 | Los Angeles | 🇺🇸 United States | |
| 9 | San Diego | 🇺🇸 United States | |
| 10 | Guangzhou | 🇨🇳 China |
Rare
Under 5% of wildlife watchers report a Dark Rover Ant sighting in Guangzhou on a given day, based on 8 verified sightings from GBIF citizen-science data. It is the 329th most-seen of the 482 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.
June
In that month about 10% of wildlife watchers report a Dark Rover Ant in Guangzhou on a given day, against under 5% in July to May, the lowest months. That is one of Guangzhou's wettest months, with about 330 mm of rain against 30 mm in December.
Between 7 and 10 am
Across all the parks we cover, that three-hour window holds the most Dark Rover Ant sightings with a recorded time, and about 7 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
10th of 13
Of the 13 cities where we can rate Dark Rover Ant sightings, Guangzhou ranks 10th at under 5%. The best odds are in Mesa (United States, about 10%), Las Vegas (United States, about 10%) and Phoenix (United States, about 10%).
Same family: Formicidae
The closest relatives of the Dark Rover Ant that you can see in Guangzhou (family Formicidae, Ants) are Nicobar Carpenter Ant (about 10%), Rich Spiny Sugar Ant (about 10%) and Asian Weaver Ant (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Dark Rover Ant is recorded against all the insects logged in Guangzhou (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.
