Catocala micronympha
In 3 days ~10% in a week ~20%
Catocala micronympha, the little nymph underwing or little bride underwing, is a moth of the family Erebidae. The species was first described by Achille Guenée in 1852. It is found in North America from southern Ontario, Quebec, and Manitoba through New Hampshire, Connecticut, and New Jersey to Florida, west to Texas and then north through Oklahoma, Kansas, Iowa, to Wisconsin and Minnesota and then east to Michigan.
The wingspan is 35–50 mm. Adults are on wing from April to September depending on the location. There is probably one generation per year. The larvae feed on Quercus macrocarpa, Quercus stellata, and Quercus virginiana Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Austin | 🇺🇸 United States | |
| 2 | San Antonio | 🇺🇸 United States | |
| 3 | Dallas | 🇺🇸 United States | |
| 4 | Chicago | 🇺🇸 United States |
Rare
Under 5% of wildlife watchers report a Little Nymph Underwing sighting in San Antonio on a given day, based on 22 verified sightings from GBIF citizen-science data. It is the 341st most-seen of the 697 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.
May
In that month about 10% of wildlife watchers report a Little Nymph Underwing in San Antonio on a given day, against under 5% in June to April, the lowest months. That is one of San Antonio's wettest months, with about 100 mm of rain against 35 mm in February.
2nd of 4
Of the 4 cities where we can rate Little Nymph Underwing sightings, San Antonio ranks 2nd at under 5%. The best odds are in Austin (United States, about 10%).
GBIF citizen-science records
It is estimated from how often the Little Nymph Underwing is recorded against all the insects logged in San Antonio (22 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.
