Kleidocerys resedae
In 3 days ~10% in a week ~20%
Kleidocerys resedae, the birch catkin bug, is a species of seed bug in the family Lygaeidae. It is found in Europe and Northern Asia (excluding China) and North America. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Wadden Sea National Park | 🇩🇪 Germany | |
| 2 | Pyrénées National Park | 🇫🇷 France |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Helsinki | 🇫🇮 Finland | |
| 2 | Hamburg | 🇩🇪 Germany | |
| 3 | Berlin | 🇩🇪 Germany | |
| 4 | London | 🇬🇧 United Kingdom | |
| 5 | Stockholm | 🇸🇪 Sweden | |
| 6 | Kharkiv | 🇺🇦 Ukraine | |
| 7 | Kyiv | 🇺🇦 Ukraine | |
| 8 | Sofia | 🇧🇬 Bulgaria | |
| 9 | Birmingham | 🇬🇧 United Kingdom | |
| 10 | Nizhny Novgorod | 🇷🇺 Russia |
Rare
Under 5% of wildlife watchers report a Birch Catkin Bug sighting in Philadelphia on a given day, based on 9 verified sightings from GBIF citizen-science data. It is the 402nd most-seen of the 632 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.
February and November
In those months about 10% of wildlife watchers report a Birch Catkin Bug in Philadelphia on a given day, against under 5% in March–October and December–January, the lowest months.
Between noon and 3 pm
Across all the parks we cover, that three-hour window holds the most Birch Catkin Bug sightings with a recorded time, and about 8 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
32nd of 36
Of the 36 cities where we can rate Birch Catkin Bug sightings, Philadelphia ranks 32nd at under 5%. The best odds are in Helsinki (Finland, about 20%), Hamburg (Germany, about 20%) and Berlin (Germany, about 10%).
Same family: Lygaeidae
The closest relatives of the Birch Catkin Bug that you can see in Philadelphia (family Lygaeidae, Seed Bugs) are Large Milkweed Bug (about 20%), False Milkweed Bug (about 10%) and Small Milkweed Bug (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Birch Catkin Bug is recorded against all the insects logged in Philadelphia (9 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.
