Libellula incesta
In 3 days ~20% in a week ~40%
Libellula incesta, the slaty skimmer, is a dragonfly of the skimmer family, native to eastern United States and southern Ontario, Quebec, and New Brunswick. Adults are 5.28 cm (2.08 in) long. Mature males are dark blue with black heads. Females and juveniles have brown abdomens with a darker stripe down their backs. Adults fly from June to August. Larvae are habitat specialists, found in the benthos of permanent lakes. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Congaree National Park | 🇺🇸 United States | |
| 2 | Acadia National Park | 🇺🇸 United States | |
| 3 | Big Cypress National Preserve | 🇺🇸 United States | |
| 4 | Shenandoah National Park | 🇺🇸 United States | |
| 5 | Everglades National Park | 🇺🇸 United States | |
| 6 | Great Smoky Mountains National Park | 🇺🇸 United States |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Washington | 🇺🇸 United States | |
| 2 | Austin | 🇺🇸 United States | |
| 3 | Boston | 🇺🇸 United States | |
| 4 | Houston | 🇺🇸 United States | |
| 5 | New York City | 🇺🇸 United States | |
| 6 | Baltimore | 🇺🇸 United States | |
| 7 | Philadelphia | 🇺🇸 United States | |
| 8 | Orlando | 🇺🇸 United States | |
| 9 | Miami | 🇺🇸 United States | |
| 10 | Dallas | 🇺🇸 United States |
With luck
About 10% of wildlife watchers report a Slaty Skimmer sighting in Big Cypress National Preserve on a given day, based on 8 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 173rd most-seen of the 262 insects we can rate there. Over three days the chance rises to about 20%, and over a week to about 40%, if each day is a fresh chance.
April and May
In those months about 20% of wildlife watchers report a Slaty Skimmer in Big Cypress National Preserve on a given day, against under 5% in June and August–February, the lowest months.
Between 8 and 11 am
Across all the parks we cover, that three-hour window holds the most Slaty Skimmer sightings with a recorded time, and nearly all of them come between 6 am and 6 pm: it is a daytime animal.
Among the best
Of the 6 parks where we can rate Slaty Skimmer sightings, Big Cypress National Preserve ranks 3rd at about 10%, level with the leaders once rounded. The best odds are in Congaree National Park (United States, about 10%) and Acadia National Park (United States, about 10%).
GBIF citizen-science records
It is estimated from how often the Slaty Skimmer is recorded against all the insects logged in Big Cypress National Preserve (8 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.
