Sphaenothecus bilineatus
In 3 days ~30% in a week ~50%
Sphaenothecus bilineatus, the double-banded bycid, is a species of long-horned beetle in the family Cerambycidae. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Big Bend National Park | 🇺🇸 United States | |
| 2 | Saguaro National Park | 🇺🇸 United States |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Mesa | 🇺🇸 United States | |
| 2 | Austin | 🇺🇸 United States | |
| 3 | San Antonio | 🇺🇸 United States | |
| 4 | Dallas | 🇺🇸 United States |
With luck
About 10% of wildlife watchers report a Double-Banded Bycid sighting in Big Bend National Park on a given day, based on 21 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 84th most-seen of the 329 insects we can rate there. Over three days the chance rises to about 30%, and over a week to about 50%, if each day is a fresh chance.
October
In that month about 30% of wildlife watchers report a Double-Banded Bycid in Big Bend National Park on a given day, against under 5% in April–August and December–February, the lowest months.
Between 11 am and 2 pm
Across all the parks we cover, that three-hour window holds the most Double-Banded Bycid sightings with a recorded time, and nearly all of them come between 6 am and 6 pm: it is a daytime animal.
Yes
Of the 2 parks where we can rate Double-Banded Bycid sightings, Big Bend National Park has the highest daily chance: about 10%. Next come Saguaro National Park (United States, about 10%).
Same family: Cerambycidae
The closest relatives of the Double-Banded Bycid that you can see in Big Bend National Park (family Cerambycidae, Longhorn Beetles) are Black Cactus Longhorn Beetle (about 10%) and Mesquite Girdler (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Double-Banded Bycid is recorded against all the insects logged in Big Bend National Park (21 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.
