Onychogomphus forcipatus
In 3 days ~80% in a week >90%
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 |
Likely
About 50% of wildlife watchers report a Small Pincertail sighting in Plitvice Lakes National Park on a given day, based on 32 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 4th most-seen of the 51 insects we can rate there. Over three days the chance rises to about 80%, and over a week to over 90%, if each day is a fresh chance.
June to August
In those months about 60% of wildlife watchers report a Small Pincertail in Plitvice Lakes National Park on a given day, against under 5% in April and September, the lowest months. December has too few records to rate.
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.
Yes
Of the 4 parks where we can rate Small Pincertail sightings, Plitvice Lakes National Park has the highest daily chance: about 50%. Next come Cévennes National Park (France, about 30%) and Bavarian Forest National Park (Germany, about 10%).
GBIF citizen-science records
It is estimated from how often the Small Pincertail is recorded against all the insects logged in Plitvice Lakes National Park (32 verified sightings from 2019 to 2026), 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.
