Homadaula anisocentra
In 3 days ~10% in a week ~20%
Homadaula anisocentra, also known as the mimosa webworm, is a species of moth in the family Galacticidae. It is considered a pest of ornamental plants. They attack the leaves of mimosa (Albizia julibrissin) and honeylocust (Gleditsia triacanthos).
This species was introduced into the United States from China in the 1940s and likely has two generations per year in the Mid Atlantic region of the United States. The average first occurrence of larvae is after 543 growing degree-days. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Chicago | 🇺🇸 United States | |
| 2 | Washington | 🇺🇸 United States | |
| 3 | New York City | 🇺🇸 United States |
Rare
Under 5% of wildlife watchers report a Mimosa Webworm Moth sighting in Chicago on a given day, based on 22 verified sightings from GBIF citizen-science data. It is the 396th 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.
Any time of year
In every month with enough records, under 5% of wildlife watchers report a Mimosa Webworm Moth in Chicago on a given day, so our monthly data shows no clear season.
Yes
Of the 3 cities where we can rate Mimosa Webworm Moth sightings, Chicago has the highest daily chance: under 5%. Next come Washington (United States, under 5%) and New York City (United States, under 5%).
Same order: Lepidoptera
The closest relatives of the Mimosa Webworm Moth that you can see in Chicago (order Lepidoptera, Butterflies and Moths) are Monarch (about 40%), Black Swallowtail (about 30%) and Red Admiral (about 20%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Mimosa Webworm Moth is recorded against all the insects logged in Chicago (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.
