Ischnura pumilio
In 3 days ~20% in a week ~40%
The scarce blue-tailed damselfly or small bluetail (Ischnura pumilio) is a member of the damselfly family Coenagrionidae. The species occurs throughout Europe except in the north. To the east it occurs from Asia Minor to Siberia, to the south the range extends to Morocco, the Azores and Madeira. The typical male has a black abdomen with a bright blue spot on tail (segments 8 and 9). It is very similar to the blue-tailed damselfly, Ischnura elegans but on that species the blue spot is mostly on segment 8. Females undergo a change of colour as they mature. The immature female is bright orange, the aurantiaca phase, but matures to a greenish-brown. Wikipedia →
| # | Park | Country | Daily sighting probability |
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More parks will be added in future updates.
With luck
About 10% of wildlife watchers report a Scarce Blue-Tailed Damselfly sighting in Milan on a given day, based on 20 verified sightings from GBIF citizen-science data. It is the 145th most-seen of the 351 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.
August
In that month about 20% of wildlife watchers report a Scarce Blue-Tailed Damselfly in Milan on a given day, against under 5% in October to June, the lowest months.
Between 7 and 10 am
Across all the parks we cover, that three-hour window holds the most Scarce Blue-Tailed Damselfly sightings with a recorded time, and about 6 in 10 of them come between 6 am and 6 pm: it is most active around dawn and dusk.
Among the best
Of the 4 cities where we can rate Scarce Blue-Tailed Damselfly sightings, Milan ranks 2nd at about 10%, level with the leaders once rounded. The best odds are in Budapest (Hungary, about 10%).
GBIF citizen-science records
It is estimated from how often the Scarce Blue-Tailed Damselfly is recorded against all the insects logged in Milan (20 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.
