Striacosta albicosta
In 3 days ~10% in a week ~20%
The western bean cutworm (Striacosta albicosta) is a species of moth of the family Noctuidae and the only member of the genus Striacosta. It is endemic to the Western parts of the United States, but since 2000, the species has spread east through Iowa, Minnesota, Illinois, Missouri, Indiana, Wisconsin, Michigan and Ohio.
The wingspan is about 40 mm. The moth flies from July to August depending on the location. The larvae feed on a wide variety of plants, including beans and corn, on which it is considered a pest. Wikipedia →
| # | Park | Country | Daily sighting probability |
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More parks will be added in future updates.
Rare
Under 5% of wildlife watchers report a Western Bean Cutworm Moth sighting in Toronto on a given day, based on 15 verified sightings from GBIF citizen-science data. It is the 828th most-seen of the 1689 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 Bean Cutworm Moth in Toronto on a given day, so our monthly data shows no clear season.
Yes
Of the 2 cities where we can rate Western Bean Cutworm Moth sightings, Toronto has the highest daily chance: under 5%. Next come Chicago (United States, under 5%).
Same family: Noctuidae
The closest relatives of the Western Bean Cutworm Moth that you can see in Toronto (family Noctuidae, Cutworm Moths and Allies) are American Dagger (about 10%), Large Yellow Underwing (about 10%) and Armyworm Moth (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Western Bean Cutworm Moth is recorded against all the insects logged in Toronto (15 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.
