Calopteryx haemorrhoidalis
In 3 days ~30% in a week ~50%
Calopteryx haemorrhoidalis is a species of damselfly in the family Calopterygidae known by the common names copper demoiselle and Mediterranean demoiselle. It is common in much of its range. It lives along rivers and streams, but also in sunny larger waters. Though it may be affected by habitat changes such as water pollution. Calopteryx haemorrhoidalis can reach a body length of about 45–48 millimetres (1.8–1.9 in). The abdomen length is of about 34–43 millimetres (1.3–1.7 in) in males, of 31–43 millimetres (1.2–1.7 in) in females. The length of the wings is of 23–32 millimetres (0.91–1.26 in) in males, of 25–37 millimetres (0.98–1.46 in) in the females.
The males have a dark, metallic shining body, the color of which can be red... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Sierra Nevada National Park | 🇪🇸 Spain | |
| 2 | Cévennes National Park | 🇫🇷 France | |
| 3 | Sierra de Guadarrama National Park | 🇪🇸 Spain | |
| 4 | Pyrénées National Park | 🇫🇷 France |
With luck
About 10% of wildlife watchers report a Copper Demoiselle sighting in Rome on a given day, based on 30 verified sightings from GBIF citizen-science data. It is the 48th most-seen of the 289 insects we can rate there. Over three days the chance rises to about 30%, and over a week to about 50%, if each day is a fresh chance.
July and September
In those months about 20% of wildlife watchers report a Copper Demoiselle in Rome on a given day, against under 5% in October to March, the lowest months.
Between 10 am and 1 pm
Across all the parks we cover, that three-hour window holds the most Copper Demoiselle sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Among the best
Of the 6 cities where we can rate Copper Demoiselle sightings, Rome ranks 2nd at about 10%, level with the leaders once rounded. The best odds are in Porto (Portugal, about 10%).
GBIF citizen-science records
It is estimated from how often the Copper Demoiselle is recorded against all the insects logged in Rome (30 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.
