Green Arches

Green Arches

Anaplectoides prasina

Daily sighting probability <5% · Rare
at Toronto

In 3 days ~10% in a week ~20%

13 Verified sightings at Toronto
33 In all 3 parks From 2019 to 2026
July Best month
☀️🌙 Day & Night When it's spotted

About the Green Arches

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 suffusa Tutt is a rare form in which the green tints are superseded by red brown with the area round the stigmata blackish; — in albimacula...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 →

Global Distribution

Parks Where Found

# Park Country Daily sighting probability
1 Cairngorms National Park 🇬🇧 United Kingdom
~10%
2 Great Bear Rainforest 🇨🇦 Canada
~10%
3 Bavarian Forest National Park 🇩🇪 Germany
~10%

Cities Where Found

# City Country Daily sighting probability
1 Nizhny Novgorod 🇷🇺 Russia
<5%
2 Helsinki 🇫🇮 Finland
<5%
3 Montreal 🇨🇦 Canada
<5%
4 Moscow 🇷🇺 Russia
<5%
5 Toronto 🇨🇦 Canada
<5%

Before you go

What are the chances of seeing a Green Arches in Toronto?

Rare

Under 5% of wildlife watchers report a Green Arches sighting in Toronto on a given day, based on 13 verified sightings from GBIF citizen-science data. It is the 902nd 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.

When is the best time to see a Green Arches in Toronto?

Any time of year

In every month with enough records, under 5% of wildlife watchers report a Green Arches in Toronto on a given day, so our monthly data shows no clear season.

What time of day is best to see a Green Arches?

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.

Is Toronto the best place to see a Green Arches?

Among the best

Of the 5 cities where we can rate Green Arches sightings, Toronto ranks 5th at under 5%, level with the leaders once rounded. The best odds are in Nizhny Novgorod (Russia, under 5%), Helsinki (Finland, under 5%) and Montreal (Canada, under 5%).

Which relatives of the Green Arches live in Toronto?

Same family: Noctuidae

The closest relatives of the Green Arches 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.

Where does the Green Arches sighting chance come from?

GBIF citizen-science records

It is estimated from how often the Green Arches is recorded against all the insects logged in Toronto (13 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.

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