Megalographa biloba
In 3 days ~20% in a week ~30%
Stephens' gem or the bilobed looper (Megalographa biloba) is a moth of the family Noctuidae. It is widely distributed from the southern parts of the United States, south through Central America and South America to Argentina.
The wingspan is 38–44 mm. It is sometimes considered a pest on cultivated lettuce. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Austin | 🇺🇸 United States | |
| 2 | Sacramento | 🇺🇸 United States | |
| 3 | Dallas | 🇺🇸 United States | |
| 4 | Mexico City | 🇲🇽 México | |
| 5 | Mesa | 🇺🇸 United States | |
| 6 | Portland | 🇺🇸 United States | |
| 7 | San Francisco | 🇺🇸 United States | |
| 8 | Los Angeles | 🇺🇸 United States | |
| 9 | San Antonio | 🇺🇸 United States | |
| 10 | Boston | 🇺🇸 United States |
With luck
About 10% of wildlife watchers report a Bilobed Looper Moth sighting in Mexico City on a given day, based on 81 verified sightings from GBIF citizen-science data. It is the 114th most-seen of the 557 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.
August to November
In those months about 10% of wildlife watchers report a Bilobed Looper Moth in Mexico City on a given day, against under 5% in December to July, the lowest months. Those are among Mexico City's wettest months, with about 95 mm of rain a month against 5 mm in December.
Among the best
Of the 21 cities where we can rate Bilobed Looper Moth sightings, Mexico City ranks 4th at about 10%, level with the leaders once rounded. The best odds are in Austin (United States, about 10%), Sacramento (United States, about 10%) and Dallas (United States, about 10%).
GBIF citizen-science records
It is estimated from how often the Bilobed Looper Moth is recorded against all the insects logged in Mexico City (81 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.
