Onychogomphus forcipatus
In 3 days ~10% in a week ~20%
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 Madrid on a given day, based on 8 verified sightings from GBIF citizen-science data. It is the 350th most-seen of the 457 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.
June
In that month about 10% of wildlife watchers report a Small Pincertail in Madrid on a given day, against under 5% in July to May, the lowest months. That is one of Madrid's driest months, with about 20 mm of rain against 65 mm in October.
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.
6th of 6
Of the 6 cities where we can rate Small Pincertail sightings, Madrid ranks 6th at under 5%. The best odds are in Milan (Italy, about 10%), Lyon (France, about 10%) and Paris (France, under 5%).
Same order: Odonata
The closest relatives of the Small Pincertail that you can see in Madrid (order Odonata, Dragonflies and Damselflies) are Nomad (about 20%), Black-Tailed Skimmer (about 10%) and Common Darter (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 Madrid (8 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.
