Leuconycta diphteroides
In 3 days ~10% in a week ~20%
Leuconycta diphteroides, the green leuconycta moth or green owlet, is a moth of the family Noctuidae. The species was first described by Achille Guenée in 1852. It is found in North America from Nova Scotia to Florida, west to Texas and north to Saskatchewan.
The wingspan is 27–32 mm. Adults are on wing from May to September. The larvae feed on Solidago and Aster species. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Acadia National Park | 🇺🇸 United States | |
| 2 | Shenandoah National Park | 🇺🇸 United States | |
| 3 | Great Smoky Mountains National Park | 🇺🇸 United States |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Toronto | 🇨🇦 Canada | |
| 2 | Chicago | 🇺🇸 United States | |
| 3 | Montreal | 🇨🇦 Canada | |
| 4 | Boston | 🇺🇸 United States | |
| 5 | Washington | 🇺🇸 United States |
Rare
Under 5% of wildlife watchers report a Green Leuconycta Moth sighting in Chicago on a given day, based on 31 verified sightings from GBIF citizen-science data. It is the 361st most-seen of the 978 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.
June
In that month about 10% of wildlife watchers report a Green Leuconycta Moth in Chicago on a given day, against under 5% in July to May, the lowest months.
Between 9 pm and midnight
Across all the parks we cover, that three-hour window holds the most Green Leuconycta Moth sightings with a recorded time, and about 7 in 10 of them come between 6 pm and 6 am: it is seen both by day and at night.
Among the best
Of the 5 cities where we can rate Green Leuconycta Moth sightings, Chicago ranks 2nd at under 5%, level with the leaders once rounded. The best odds are in Toronto (Canada, under 5%).
Same family: Noctuidae
The closest relatives of the Green Leuconycta Moth that you can see in Chicago (family Noctuidae, Cutworm Moths and Allies) are American Dagger (about 10%), Armyworm Moth (about 10%) and Corn Earworm Moth (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Green Leuconycta Moth is recorded against all the insects logged in Chicago (31 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.
