Dythemis velox
In 3 days ~10% in a week ~20%
Dythemis velox, the swift 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 velox is "LC", least concern, with no immediate threat to the species' survival. The population is increasing. The IUCN status was reviewed in 2017. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Big Bend National Park | 🇺🇸 United States |
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Dallas | 🇺🇸 United States | |
| 2 | Austin | 🇺🇸 United States | |
| 3 | San Antonio | 🇺🇸 United States | |
| 4 | Houston | 🇺🇸 United States | |
| 5 | Washington | 🇺🇸 United States |
Rare
Under 5% of wildlife watchers report a Swift Setwing sighting in Houston on a given day, based on 33 verified sightings from GBIF citizen-science data. It is the 431st most-seen of the 1057 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 Swift Setwing in Houston on a given day, against under 5% in September to July, the lowest months.
Between 3 and 6 pm
Across all the parks we cover, that three-hour window holds the most Swift Setwing sightings with a recorded time, and nearly all of them come between 6 am and 6 pm: it is a daytime animal.
4th of 5
Of the 5 cities where we can rate Swift Setwing sightings, Houston ranks 4th at under 5%. The best odds are in Dallas (United States, about 10%), Austin (United States, about 10%) and San Antonio (United States, under 5%).
GBIF citizen-science records
It is estimated from how often the Swift Setwing is recorded against all the insects logged in Houston (33 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.
