Ethmia delliella
In 3 days ~10% in a week ~20%
Ethmia delliella, the ladder-backed ethmia moth, is a moth in the family Depressariidae. It is found from the Gulf region of Texas and Mexico to the west coastal plain of Mexico, Chiapas, El Salvador and Costa Rica. The length of the forewings is 9–12 mm (0.35–0.47 in). The ground color of the forewings is white with black markings, reflecting metallic steel blue. The ground color of the hindwings is white, becoming slightly to strongly brown toward the apex. Adults are on wing from March to October in Texas and from April to August elsewhere. There are probably multiple generations per year.
The larvae feed on Ehretia elliptica and Cordia alliodora. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Cumbres de Monterrey National Park | 🇲🇽 Mexico |
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Monterrey | 🇲🇽 México | |
| 2 | Austin | 🇺🇸 United States | |
| 3 | San Antonio | 🇺🇸 United States |
Rare
Under 5% of wildlife watchers report a Ladder-Backed Ethmia Moth sighting in San Antonio on a given day, based on 18 verified sightings from GBIF citizen-science data. It is the 356th 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 to July
In those months about 10% of wildlife watchers report a Ladder-Backed Ethmia Moth in San Antonio on a given day, against under 5% in August to April, the lowest months.
Between 7 and 10 am
Across all the parks we cover, that three-hour window holds the most Ladder-Backed Ethmia Moth sightings with a recorded time, and about 7 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
3rd of 3
Of the 3 cities where we can rate Ladder-Backed Ethmia Moth sightings, San Antonio ranks 3rd at under 5%. The best odds are in Monterrey (México, about 10%) and Austin (United States, about 10%).
Same order: Lepidoptera
The closest relatives of the Ladder-Backed Ethmia Moth that you can see in San Antonio (order Lepidoptera, Butterflies and Moths) are Gulf Fritillary (about 40%), Monarch (about 30%) and Queen (about 30%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Ladder-Backed Ethmia Moth is recorded against all the insects logged in San Antonio (18 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.
