Ophiogomphus cecilia
In 3 days ~10% in a week ~30%
Ophiogomphus cecilia, the green snaketail, green gomphid, or green club-tailed dragonfly, is a species of dragonfly in the family Gomphidae. The only snaketail in Europe; resembles a large clubtail in general coloration and river habitat, but the 'front-end' is vivid apple green in mature individuals and the male appendages are short. It is the largest of the Gomphidae apart from Bladetail, with green eyes and 'face, and green thorax with thin black lines on top and side, the latter similar to those on Yellow Clubtail and Western Clubtail; at the base of abdomen the green is extending to S2, the rest of the abdomen has a discontinuous yellow pattern to S 10, generally broader than on clubtails and those on S3-7 more triangular in shape, and moderately clubbed at S8-9. The legs are extensively yellow. Male appendages are short and yellowish. Female yellow markings on the abdomen are broader than on males. It shows two tiny 'crests' on the back of the head, between the eyes. Black lines on the thorax reduced in some individuals. Imatures lack any green.
It is found in Austria, Belarus, Bulgaria, China, the Czech Republic, Denmark, Estonia, Finland, France... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Bavarian Forest National Park | 🇩🇪 Germany |
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Munich | 🇩🇪 Germany |
Rare
Under 5% of wildlife watchers report a Green Snaketail sighting in Bavarian Forest National Park on a given day, based on 6 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 822nd most-seen of the 1115 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 and August–September
In those months about 10% of wildlife watchers report a Green Snaketail in Bavarian Forest National Park on a given day, against under 5% in July and October–May, the lowest months.
Between 9 am and noon
Across all the parks we cover, that three-hour window holds the most Green Snaketail sightings with a recorded time, and nearly all of them come between 6 am and 6 pm: it is a daytime animal.
Only Bavarian Forest National Park, in our data
Bavarian Forest National Park is the only park on Wallace's Line with enough records to rate Green Snaketail sightings: under 5% of wildlife watchers there report one on a given day.
GBIF citizen-science records
It is estimated from how often the Green Snaketail is recorded against all the insects logged in Bavarian Forest National Park (6 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.
