Anaplectoides prasina
In 3 days ~20% in a week ~30%
Anaplectoides prasina (green arches) is a species of moth of the family Noctuidae. It is found in both the Palearctic and Nearctic realms. Europe East to Siberia, Central Asia, Mongolia, China, Tibet, Korea and Japan. Also in Armenia and the Caucasus. In North America South Canada, Washington, Oregon, North Utah, New Mexico, New Jersey, Ohio, North Carolina.
The wingspan is 40–50 mm. Green, variously tinged with dark green or blackish; a green-tinged cream coloured or whitish blotch between the reniform stigma and outer line; stigmata dark green edged with black; inner and outer lines black, conversely edged with white, or whitish green, or concolorous; hindwing fuscous with a paler fringe. — In jaspidea Bkh. the pale patch beyond the reniform stigma is wanting and the stigmata are blacker; ab. pallida Tutt represents the extreme pale form, the whole wing being whitish green, in which the white patch beyond the reniform is absorbed, and the lines and shades are distinct only in the costal half of wing; — ab. suffusa Tutt is a rare form in which the green tints are superseded by red brown with the area round the stigmata blackish; — in albimacula... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Cairngorms National Park | 🇬🇧 United Kingdom | |
| 2 | Great Bear Rainforest | 🇨🇦 Canada | |
| 3 | Bavarian Forest National Park | 🇩🇪 Germany |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Nizhny Novgorod | 🇷🇺 Russia | |
| 2 | Helsinki | 🇫🇮 Finland | |
| 3 | Montreal | 🇨🇦 Canada | |
| 4 | Moscow | 🇷🇺 Russia | |
| 5 | Toronto | 🇨🇦 Canada |
With luck
About 10% of wildlife watchers report a Green Arches sighting in Great Bear Rainforest on a given day, based on 9 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 137th most-seen of the 235 insects we can rate there. Over three days the chance rises to about 20%, and over a week to about 30%, if each day is a fresh chance.
July and August
In those months about 10% of wildlife watchers report a Green Arches in Great Bear Rainforest on a given day, against under 5% in September to June, the lowest months. Those are among Great Bear Rainforest's driest months, with about 140 mm of rain a month against 480 mm in November.
Between 7 and 10 am
Across all the parks we cover, that three-hour window holds the most Green Arches 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.
Among the best
Of the 3 parks where we can rate Green Arches sightings, Great Bear Rainforest ranks 2nd at about 10%, level with the leaders once rounded. The best odds are in Cairngorms National Park (United Kingdom, about 10%).
Same family: Noctuidae
The closest relatives of the Green Arches that you can see in Great Bear Rainforest (family Noctuidae, Cutworm Moths and Allies) are Large Yellow Underwing (about 20%), Large Gray Dagger (about 10%) and American Angle Shades (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Green Arches is recorded against all the insects logged in Great Bear Rainforest (9 verified sightings from 2019 to 2026), 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.
