Leptoglossus occidentalis
In 3 days ~40% in a week ~70%
The western conifer seed bug (Leptoglossus occidentalis), sometimes called the pine-beetle, or abbreviated as WCSB, is a species of true bug (Hemiptera) in the family Coreidae. It is native to North America west of the Rocky Mountains (California to British Columbia, east to Idaho, Minnesota, and Nevada) but has in recent times expanded its range to eastern North America, to include Ontario, Québec, New Brunswick, Nova Scotia, Prince Edward Island, Michigan, Maine, Pennsylvania, New York, New Jersey, Connecticut, Massachusetts, Rhode Island, New Hampshire, Vermont, Ohio, Indiana, Kentucky, and Wisconsin, and has become an accidental introduced species in parts of Europe and Argentina.
This species is a member of the insect family Coreidae, or leaf-footed bugs, which also includes the similar Leptoglossus phyllopus and Acanthocephala femorata, both known as the "Florida leaf-footed bug". Western conifer seed bugs are sometimes colloquially called stink bugs. While they do use a foul-smelling spray as a defense, they are not classified in the stink bug family Pentatomidae. In Chile, it has been confused with kissing bugs (Triatominae), causing unjustified alarm.
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| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Cape Breton Highlands National Park | 🇨🇦 Canada | |
| 2 | Acadia National Park | 🇺🇸 United States | |
| 3 | Cévennes National Park | 🇫🇷 France | |
| 4 | Wadden Sea National Park | 🇩🇪 Germany | |
| 5 | Bavarian Forest National Park | 🇩🇪 Germany | |
| 6 | Picos de Europa National Park | 🇪🇸 Spain | |
| 7 | Nahuel Huapi National Park | 🇦🇷 Argentina | |
| 8 | Tatra National Park | 🇸🇰 Slovakia | |
| 9 | Sierra de Guadarrama National Park | 🇪🇸 Spain | |
| 10 | Sierra Nevada National Park | 🇪🇸 Spain | |
| 11 | Triglav National Park | 🇸🇮 Slovenia | |
| 12 | Pyrénées National Park | 🇫🇷 France | |
| 13 | Fertő-Hanság National Park | 🇭🇺 Hungary | |
| 14 | Glacier National Park | 🇺🇸 United States | |
| 15 | Great Bear Rainforest | 🇨🇦 Canada | |
| 16 | Zion National Park | 🇺🇸 United States | |
| 17 | Rocky Mountain National Park | 🇺🇸 United States | |
| 18 | Yosemite National Park | 🇺🇸 United States | |
| 19 | Olympic National Park | 🇺🇸 United States |
Possible
About 20% of wildlife watchers report a Western Conifer Seed Bug sighting in Kyiv on a given day, based on 112 verified sightings from GBIF citizen-science data. It is the 29th most-seen of the 753 insects we can rate there. Over three days the chance rises to about 40%, and over a week to about 70%, if each day is a fresh chance.
October
In that month about 40% of wildlife watchers report a Western Conifer Seed Bug in Kyiv on a given day, against under 5% in May, the lowest month.
Between 2 and 5 pm
Across all the parks we cover, that three-hour window holds the most Western Conifer Seed 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.
Among the best
Of the 66 cities where we can rate Western Conifer Seed Bug sightings, Kyiv ranks 11th at about 20%, level with the leaders once rounded. The best odds are in Shenyang (China, about 20%), Portland (United States, about 20%) and Salt Lake City (United States, about 20%).
Same family: Coreidae
The closest relatives of the Western Conifer Seed Bug that you can see in Kyiv (family Coreidae, Leaf-footed Bugs) are Dock Bug (about 20%), Box Bug (about 10%) and Gonocerus juniperi (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Western Conifer Seed Bug is recorded against all the insects logged in Kyiv (112 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.
