Cysteodemus wislizeni
In 3 days ~40% in a week ~70%
Cysteodemus wislizeni, the black bladder-bodied meloid, is a species of blister beetle in the family Meloidae. It is found in Central America and North America. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Big Bend National Park | 🇺🇸 United States |
More parks will be added in future updates.
With luck
About 10% of wildlife watchers report a Black Bladder-Bodied Meloid sighting in Big Bend National Park on a given day, based on 36 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 46th most-seen of the 329 insects we can rate there. Over three days the chance rises to about 40%, and over a week to about 70%, if each day is a fresh chance.
March and June–October
In those months about 20% of wildlife watchers report a Black Bladder-Bodied Meloid in Big Bend National Park on a given day, against under 5% in January and February, the lowest months.
Between 9 am and noon
Across all the parks we cover, that three-hour window holds the most Black Bladder-Bodied Meloid sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
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 Black Bladder-Bodied Meloid sightings: about 10% of wildlife watchers there report one on a given day.
Same family: Meloidae
The closest relatives of the Black Bladder-Bodied Meloid that you can see in Big Bend National Park (family Meloidae, Blister Beetles) are Black-Striped Blister Beetle (about 20%), White-Necklace Blister Beetle (about 10%) and Nemognatha nigripennis (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Black Bladder-Bodied Meloid is recorded against all the insects logged in Big Bend National Park (36 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.
