Dargida procinctus
In 3 days ~10% in a week ~30%
Dargida procinctus, the olive green cutworm or girdler moth, is a species of moth of the family Noctuidae. It is found from Wisconsin and Manitoba to British Columbia, south to California and Arizona. The wingspan is about 40 mm. The moth flies from August to September in the north, but much earlier in the southern parts of its range.
The larvae feed on various grasses, primarily Phalaris arundinacea. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Great Bear Rainforest | 🇨🇦 Canada |
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Sacramento | 🇺🇸 United States | |
| 2 | Portland | 🇺🇸 United States | |
| 3 | Vancouver | 🇨🇦 Canada | |
| 4 | Seattle | 🇺🇸 United States | |
| 5 | San Francisco | 🇺🇸 United States | |
| 6 | Calgary | 🇨🇦 Canada | |
| 7 | San Diego | 🇺🇸 United States | |
| 8 | Los Angeles | 🇺🇸 United States |
Rare
Under 5% of wildlife watchers report a Girdler Moth sighting in Portland on a given day, based on 34 verified sightings from GBIF citizen-science data. It is the 160th 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 30%, if each day is a fresh chance.
July–August and October–December
In those months about 10% of wildlife watchers report a Girdler Moth in Portland on a given day, against under 5% in January–June and September, the lowest months.
Between 5 and 8 am
Across all the parks we cover, that three-hour window holds the most Girdler Moth sightings with a recorded time, and about 7 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
2nd of 8
Of the 8 cities where we can rate Girdler Moth sightings, Portland ranks 2nd at under 5%. The best odds are in Sacramento (United States, about 10%).
Same family: Noctuidae
The closest relatives of the Girdler Moth that you can see in Portland (family Noctuidae, Cutworm Moths and Allies) are Large Yellow Underwing (about 20%), Lesser Yellow Underwing (about 10%) and Alfalfa Looper (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Girdler Moth is recorded against all the insects logged in Portland (34 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.
