Choristoneura occidentalis
In 3 days ~10% in a week ~20%
For the Western spruce bud worm, elsewhere as the homonym Choristoneura occidentalis, please see Choristoneura freemani Archips occidentalis [or Choristoneura occidentalis in some schemes] is a species of moth of the family Tortricidae. It is found in the Gambia, and possibly more broadly, such as Democratic Republic of Congo, Tanzania, and South Africa.
The larvae feed on Maesopsis eminii, Pinus patula, Vigna unguiculata, Allium cepa, Cajanus, Citrus (including Citrus aurantium), Coffea (including Coffea arabica), Corchorus, Cupressus lusitanica, Eucalyptus camaldulensis, Eucalyptus torelliana, Glycine max and Gossypium species. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Jasper National Park | 🇨🇦 Canada |
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Vancouver | 🇨🇦 Canada |
Rare
Under 5% of wildlife watchers report a Western Spruce Budworm Moth sighting in Vancouver on a given day, based on 7 verified sightings from GBIF citizen-science data. It is the 404th most-seen of the 482 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.
Any time of year
In every month with enough records, under 5% of wildlife watchers report a Western Spruce Budworm Moth in Vancouver on a given day, so our monthly data shows no clear season.
Between 7 and 10 am
Across all the parks we cover, that three-hour window holds the most Western Spruce Budworm Moth sightings with a recorded time, and about 6 in 10 of them come between 6 am and 6 pm: it is seen both by day and at night.
Only Vancouver, in our data
Vancouver is the only city on Wallace's Line with enough records to rate Western Spruce Budworm Moth sightings: under 5% of wildlife watchers there report one on a given day.
GBIF citizen-science records
It is estimated from how often the Western Spruce Budworm Moth is recorded against all the insects logged in Vancouver (7 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.
