What are the chances of seeing a Stenomorpha opaca in Big Bend National Park?
With luck
About 10% of wildlife watchers report a Stenomorpha opaca sighting in Big Bend National Park on a given day, based on 7 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 221st most-seen of the 329 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.
When is the best time to see a Stenomorpha opaca in Big Bend National Park?
July and August
In those months about 20% of wildlife watchers report a Stenomorpha opaca in Big Bend National Park on a given day, against under 5% in October to June, the lowest months. Those are among Big Bend National Park's wettest months, with about 35 mm of rain a month against 10 mm in April.
What time of day is best to see a Stenomorpha opaca?
Between 11 am and 2 pm
Across all the parks we cover, that three-hour window holds the most Stenomorpha opaca sightings with a recorded time, and about 7 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Is Big Bend National Park the best place to see a Stenomorpha opaca?
2nd of 2
Of the 2 parks where we can rate Stenomorpha opaca sightings, Big Bend National Park ranks 2nd at about 10%. The best odds are in Guadalupe Mountains National Park (United States, about 20%).
Which relatives of the Stenomorpha opaca live in Big Bend National Park?
Same family: Tenebrionidae
The closest relatives of the Stenomorpha opaca that you can see in Big Bend National Park (family Tenebrionidae, Darkling Beetles) are Eleodes spinipes (about 20%), Cryptoglossa infausta (about 10%) and Eleodes knullorum (about 10%), with each one's daily chance of a sighting.
Where does the Stenomorpha opaca sighting chance come from?
GBIF citizen-science records
It is estimated from how often the Stenomorpha opaca is recorded against all the insects logged in Big Bend National Park (7 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.