Loxostege cereralis
In 3 days ~10% in a week ~30%
Loxostege cereralis, the alfalfa webworm, is a species of moth of the family Crambidae. It is found from Quebec to British Columbia, south to Mexico in the west. The wingspan is 30–34 mm. Adults are on wing from March to October (May to early September in Alberta). The larvae feed on alfalfa and a variety of other crops and weed species. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Denver | 🇺🇸 United States |
Rare
Under 5% of wildlife watchers report an Alfalfa Webworm Moth sighting in Denver on a given day, based on 29 verified sightings from GBIF citizen-science data. It is the 158th most-seen of the 461 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.
May and September
In those months about 10% of wildlife watchers report an Alfalfa Webworm Moth in Denver on a given day, against under 5% in June–August and October–April, the lowest months.
Only Denver, in our data
Denver is the only city on Wallace's Line with enough records to rate Alfalfa Webworm 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 Alfalfa Webworm Moth is recorded against all the insects logged in Denver (29 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.
