Megalographa biloba
In 3 days ~10% 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 |
Rare
Under 5% of wildlife watchers report a Bilobed Looper Moth sighting in Portland on a given day, based on 33 verified sightings from GBIF citizen-science data. It is the 167th most-seen of the 507 insects we can rate there. Over three days the chance rises to about 10%, and over a week to about 30%, if each day is a fresh chance.
July and September–October
In those months about 10% of wildlife watchers report a Bilobed Looper Moth in Portland on a given day, against under 5% in August and November–June, the lowest months. Those are among Portland's driest months, with about 70 mm of rain a month against 250 mm in December.
6th of 21
Of the 21 cities where we can rate Bilobed Looper Moth sightings, Portland ranks 6th at under 5%. The best odds are in Austin (United States, about 10%), Sacramento (United States, about 10%) and Dallas (United States, about 10%).
Same family: Noctuidae
The closest relatives of the Bilobed Looper Moth that you can see in Portland (family Noctuidae, Cutworm Moths and Allies) are Large Yellow Underwing (about 20%), Lesser Yellow Underwing (about 10%) and Alfalfa Looper (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Bilobed Looper Moth is recorded against all the insects logged in Portland (33 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.
