Brachymesia gravida
In 3 days ~10% in a week ~20%
Brachymesia gravida, the four-spotted pennant, is a species of skimmer in the dragonfly family Libellulidae. It is found in North America. The IUCN conservation status of Brachymesia gravida 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 | Everglades National Park | 🇺🇸 United States | |
| 2 | Merritt Island National Wildlife Refuge | 🇺🇸 United States | |
| 3 | Big Cypress National Preserve | 🇺🇸 United States |
Rare
Under 5% of wildlife watchers report a Four-Spotted Pennant sighting in Dallas on a given day, based on 22 verified sightings from GBIF citizen-science data. It is the 667th most-seen of the 1412 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.
August
In that month about 10% of wildlife watchers report a Four-Spotted Pennant in Dallas on a given day, against under 5% in September to July, the lowest months.
Between 11 am and 2 pm
Across all the parks we cover, that three-hour window holds the most Four-Spotted Pennant 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 6
Of the 6 cities where we can rate Four-Spotted Pennant sightings, Dallas ranks 5th at under 5%. The best odds are in Miami (United States, about 10%), Austin (United States, about 10%) and Orlando (United States, about 10%).
Same family: Libellulidae
The closest relatives of the Four-Spotted Pennant that you can see in Dallas (family Libellulidae, Skimmers) are Blue Dasher (about 20%), Widow Skimmer (about 20%) and Common Whitetail (about 20%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Four-Spotted Pennant is recorded against all the insects logged in Dallas (22 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.
