Dythemis nigrescens
In 3 days ~10% in a week ~30%
Dythemis nigrescens, the black setwing, is a species of skimmer in the dragonfly family Libellulidae. It is found in Central America and North America. The IUCN conservation status of Dythemis nigrescens is "LC", least concern, with no immediate threat to the species' survival. The population is stable. The IUCN status was reviewed in 2017. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Big Bend National Park | 🇺🇸 United States | |
| 2 | Cumbres de Monterrey National Park | 🇲🇽 Mexico |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Austin | 🇺🇸 United States | |
| 2 | Monterrey | 🇲🇽 México | |
| 3 | San Antonio | 🇺🇸 United States | |
| 4 | Houston | 🇺🇸 United States |
Rare
Under 5% of wildlife watchers report a Black Setwing sighting in Cumbres de Monterrey National Park on a given day, based on 9 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 252nd 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.
July, September and November
In those months about 10% of wildlife watchers report a Black Setwing in Cumbres de Monterrey National Park on a given day, against under 5% in August, October and December–June, the lowest months.
Between 9 am and noon
Across all the parks we cover, that three-hour window holds the most Black Setwing sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
2nd of 2
Of the 2 parks where we can rate Black Setwing sightings, Cumbres de Monterrey National Park ranks 2nd at under 5%. The best odds are in Big Bend National Park (United States, about 20%).
GBIF citizen-science records
It is estimated from how often the Black Setwing is recorded against all the insects logged in Cumbres de Monterrey National Park (9 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.
