Caenurgina erechtea
In 3 days ~10% in a week ~20%
Caenurgina erechtea, the forage looper or common grass moth, is a moth of the family Erebidae. The species was first described by Pieter Cramer in 1780. It is found from coast to coast in the United States and adjacent parts of Canada. It is not found in Newfoundland, New Brunswick, Prince Edward Island, Yukon, or the Northwest Territories.
The wingspan is 30–42 mm. Adults are on wing from March to November depending on the location. The larvae feed on Ambrosia trifida and various species of clover, grass, and alfalfa. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Dallas | 🇺🇸 United States | |
| 2 | Austin | 🇺🇸 United States | |
| 3 | Minneapolis [Saint Paul] | 🇺🇸 United States | |
| 4 | San Antonio | 🇺🇸 United States | |
| 5 | Portland | 🇺🇸 United States | |
| 6 | Denver | 🇺🇸 United States | |
| 7 | Chicago | 🇺🇸 United States | |
| 8 | Toronto | 🇨🇦 Canada | |
| 9 | New York City | 🇺🇸 United States | |
| 10 | Houston | 🇺🇸 United States |
Rare
Under 5% of wildlife watchers report a Forage Looper Moth sighting in Portland on a given day, based on 8 verified sightings from GBIF citizen-science data. It is the 378th most-seen of the 507 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 Forage Looper Moth in Portland on a given day, so our monthly data shows no clear season.
5th of 11
Of the 11 cities where we can rate Forage Looper Moth sightings, Portland ranks 5th at under 5%. The best odds are in Dallas (United States, about 10%), Austin (United States, about 10%) and Minneapolis [Saint Paul] (United States, under 5%).
Same family: Erebidae
The closest relatives of the Forage Looper Moth that you can see in Portland (family Erebidae, Underwing, Tiger, Tussock, and Allied Moths) are Isabella Tiger Moth (about 20%), Cinnabar Moth (about 20%) and Arctia tigrina (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Forage Looper Moth is recorded against all the insects logged in Portland (8 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.
