Onychogomphus forcipatus
In 3 days ~10% in a week ~30%
Onychogomphus forcipatus, the small pincertail, green-eyed hooktail, or green-eyed hook-tailed dragonfly, is a species of dragonfly belonging to the family Gomphidae. These dragonflies usually inhabit clean rivers with a little faster running water and gravel or sandy banks. Occasionally they are also present at large lakes. The adults of Onychogomphus forcipatus grow up to 6 centimetres (2.4 in) long, with a wingspan of 5.5–7.5 centimetres (2.2–3.0 in). The eyes of these medium-sized dragonflies are widely separated and grey-to-green. The two black lines on the side of the thorax are relatively narrow and touch the midline. It has a yellow line on the vertex and two cells above the anal triangle. The abdomen in males... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Plitvice Lakes National Park | 🇭🇷 Croatia | |
| 2 | Cévennes National Park | 🇫🇷 France | |
| 3 | Bavarian Forest National Park | 🇩🇪 Germany | |
| 4 | Pyrénées National Park | 🇫🇷 France |
Rare
Under 5% of wildlife watchers report a Small Pincertail sighting in Paris on a given day, based on 25 verified sightings from GBIF citizen-science data. It is the 289th most-seen of the 916 insects we can rate there. Over three days the chance rises to about 10%, and over a week to about 30%, if each day is a fresh chance.
June to August
In those months about 10% of wildlife watchers report a Small Pincertail in Paris on a given day, against under 5% in September to May, the lowest months.
Between 1 and 4 pm
Across all the parks we cover, that three-hour window holds the most Small Pincertail sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
3rd of 6
Of the 6 cities where we can rate Small Pincertail sightings, Paris ranks 3rd at under 5%. The best odds are in Milan (Italy, about 10%) and Lyon (France, about 10%).
GBIF citizen-science records
It is estimated from how often the Small Pincertail is recorded against all the insects logged in Paris (25 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.
