Onychogomphus forcipatus
In 3 days ~20% in a week ~40%
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 |
With luck
About 10% of wildlife watchers report a Small Pincertail sighting in Lyon on a given day, based on 17 verified sightings from GBIF citizen-science data. It is the 148th most-seen of the 411 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.
July
In that month about 20% of wildlife watchers report a Small Pincertail in Lyon on a given day, against under 5% in September to April, 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.
Among the best
Of the 6 cities where we can rate Small Pincertail sightings, Lyon ranks 2nd at about 10%, level with the leaders once rounded. The best odds are in Milan (Italy, about 10%).
Same order: Odonata
The closest relatives of the Small Pincertail that you can see in Lyon (order Odonata, Dragonflies and Damselflies) are Blue Featherleg (about 20%), Blue-Tailed Damselfly (about 20%) and Black-Tailed Skimmer (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Small Pincertail is recorded against all the insects logged in Lyon (17 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.
