Sphaeropthalma marpesia
In 3 days ~10% in a week ~30%
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Big Bend National Park | 🇺🇸 United States |
More parks will be added in future updates.
Rare
Under 5% of wildlife watchers report a Sphaeropthalma marpesia sighting in Big Bend National Park on a given day, based on 5 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 283rd most-seen of the 329 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 20% of wildlife watchers report a Sphaeropthalma marpesia in Big Bend National Park on a given day, against under 5% in July–August and October–May, the lowest months.
Between 11 pm and 2 am
Across all the parks we cover, that three-hour window holds the most Sphaeropthalma marpesia sightings with a recorded time, and about 8 in 10 of them come between 6 pm and 6 am: it is mostly seen at night.
Only Big Bend National Park, in our data
Big Bend National Park is the only park on Wallace's Line with enough records to rate Sphaeropthalma marpesia sightings: under 5% of wildlife watchers there report one on a given day.
Same family: Mutillidae
The closest relatives of the Sphaeropthalma marpesia that you can see in Big Bend National Park (family Mutillidae, Velvet Ants) are Thistledown Velvet Ant (about 10%) and Dasymutilla vestita (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Sphaeropthalma marpesia is recorded against all the insects logged in Big Bend National Park (5 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.
