Megacyllene antennata
In 3 days ~10% in a week ~30%
Megacyllene antennata is a species of beetle in the family Cerambycidae occurring in the southwestern United States, where its larvae feed on mesquite trees. It was described by White in 1855. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Saguaro National Park | 🇺🇸 United States |
More parks will be added in future updates.
Rare
Under 5% of wildlife watchers report a Megacyllene antennata sighting in Saguaro National Park on a given day, based on 10 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 194th most-seen of the 354 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.
August to October
In those months about 10% of wildlife watchers report a Megacyllene antennata in Saguaro National Park on a given day, against under 5% in November to July, the lowest months.
Between 7 and 10 pm
Across all the parks we cover, that three-hour window holds the most Megacyllene antennata sightings with a recorded time, and about 7 in 10 of them come between 6 pm and 6 am: it is mostly seen at night.
Only Saguaro National Park, in our data
Saguaro National Park is the only park on Wallace's Line with enough records to rate Megacyllene antennata sightings: under 5% of wildlife watchers there report one on a given day.
Same family: Cerambycidae
The closest relatives of the Megacyllene antennata that you can see in Saguaro National Park (family Cerambycidae, Longhorn Beetles) are Giant Cactus Longhorn Beetle (about 20%), Double-Banded Bycid (about 10%) and Long-Jawed Longhorn Beetle (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Megacyllene antennata is recorded against all the insects logged in Saguaro National Park (10 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.
