Argia emma
In 3 days ~10% in a week ~20%
Argia emma, or Emma's dancer, is a species of narrow-winged damselfly in the family Coenagrionidae. It is found in North America. The IUCN conservation status of Argia emma is "LC", least concern, with no immediate threat to the species' survival. The population is stable. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Redwood National Park | 🇺🇸 United States | |
| 2 | Yellowstone National Park | 🇺🇸 United States |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Denver | 🇺🇸 United States | |
| 2 | Sacramento | 🇺🇸 United States | |
| 3 | Portland | 🇺🇸 United States |
Rare
Under 5% of wildlife watchers report an Emma's Dancer sighting in Sacramento on a given day, based on 18 verified sightings from GBIF citizen-science data. It is the 222nd most-seen of the 386 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.
May and July
In those months about 10% of wildlife watchers report an Emma's Dancer in Sacramento on a given day, against under 5% in June and August–April, the lowest months. Those are among Sacramento's driest months, with about 10 mm of rain a month against 120 mm in December.
Between 3 and 6 pm
Across all the parks we cover, that three-hour window holds the most Emma's Dancer 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 3 cities where we can rate Emma's Dancer sightings, Sacramento ranks 2nd at under 5%, level with the leaders once rounded. The best odds are in Denver (United States, under 5%).
GBIF citizen-science records
It is estimated from how often the Emma's Dancer is recorded against all the insects logged in Sacramento (18 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.
