Gomphus vulgatissimus
In 3 days ~10% in a week ~20%
Gomphus vulgatissimus, the common clubtail, is a medium-sized (wingspan 6 –7 cm.) species of dragonfly in the family Gomphidae. It is found in most of Europe, and is present now in the south of France. Its natural habitats are clean, slow moving streaming rivers and creeks with sandy soil. It can be seen from mid-April in the south to August. Once they hatched out of water, they live shortly. As the common name suggests, this medium-sized species has a distinctive club-shaped abdomen. The males are black with extensive yellow markings on the thorax and abdomen which turn green as the insect ages. The females are black with extensive yellow markings. In the British Isles the adult flight period extends from mid May to early July.
"Gomphus vulgatissimus". British Dragonfly Society. Retrieved 28 May 2011. Media related to Gomphus vulgatissimus at Wikimedia Commons Data related to Gomphus vulgatissimus at Wikispecies Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Plitvice Lakes National Park | 🇭🇷 Croatia | |
| 2 | Biebrza National Park | 🇵🇱 Poland | |
| 3 | Białowieża National Park | 🇵🇱 Poland | |
| 4 | Cévennes National Park | 🇫🇷 France | |
| 5 | Pyrénées National Park | 🇫🇷 France |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Turin | 🇮🇹 Italy | |
| 2 | Novosibirsk | 🇷🇺 Russia | |
| 3 | Milan | 🇮🇹 Italy | |
| 4 | Paris | 🇫🇷 France | |
| 5 | Vienna | 🇦🇹 Austria |
Rare
Under 5% of wildlife watchers report a Common Clubtail sighting in Milan on a given day, based on 6 verified sightings from GBIF citizen-science data. It is the 289th most-seen of the 351 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 June
In those months about 10% of wildlife watchers report a Common Clubtail in Milan on a given day, against under 5% in July to April, the lowest months.
Between 9 am and noon
Across all the parks we cover, that three-hour window holds the most Common Clubtail sightings with a recorded time, and nearly all of them come between 6 am and 6 pm: it is a daytime animal.
3rd of 5
Of the 5 cities where we can rate Common Clubtail sightings, Milan ranks 3rd at under 5%. The best odds are in Turin (Italy, about 10%) and Novosibirsk (Russia, under 5%).
GBIF citizen-science records
It is estimated from how often the Common Clubtail is recorded against all the insects logged in Milan (6 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.
