Marathyssa inficita
In 3 days ~10% in a week ~30%
Marathyssa inficita, the dark marathyssa, is a moth in the family Euteliidae. The species was first described by Francis Walker in 1865. It is found in North America. The MONA or Hodges number for Marathyssa inficita is 8955. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Big Bend National Park | 🇺🇸 United States | |
| 2 | Shenandoah National Park | 🇺🇸 United States |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Toronto | 🇨🇦 Canada | |
| 2 | New York City | 🇺🇸 United States |
Rare
Under 5% of wildlife watchers report a Dark Marathyssa Moth sighting in Shenandoah National Park on a given day, based on 6 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 630th most-seen of the 723 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.
June
In that month about 10% of wildlife watchers report a Dark Marathyssa Moth in Shenandoah National Park on a given day, against under 5% in July to May, the lowest months.
Between 10 pm and 1 am
Across all the parks we cover, that three-hour window holds the most Dark Marathyssa Moth sightings with a recorded time, and about 9 in 10 of them come between 6 pm and 6 am: it is mostly seen at night.
2nd of 2
Of the 2 parks where we can rate Dark Marathyssa Moth sightings, Shenandoah National Park ranks 2nd at under 5%. The best odds are in Big Bend National Park (United States, about 10%).
Same order: Lepidoptera
The closest relatives of the Dark Marathyssa Moth that you can see in Shenandoah National Park (order Lepidoptera, Butterflies and Moths) are Eastern Tiger Swallowtail (about 50%), Spicebush Swallowtail (about 40%) and Spongy Moth (about 40%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Dark Marathyssa Moth is recorded against all the insects logged in Shenandoah National Park (6 verified sightings from 2019 to 2026), 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.
