Spotted Long-Horned Beetle

Spotted Long-Horned Beetle

Astylopsis macula

Daily sighting probability <5% · Rare
at Montreal

In 3 days ~10% in a week ~20%

9 Verified sightings at Montreal
July Best month

About the Spotted Long-Horned Beetle

Astylopsis macula is a species of longhorn beetles of the subfamily Lamiinae. It was described by Say in 1826. Wikipedia →

Global Distribution

Parks Where Found

# Park Country Daily sighting probability

More parks will be added in future updates.

Cities Where Found

# City Country Daily sighting probability
1 Montreal 🇨🇦 Canada
<5%
2 Boston 🇺🇸 United States
<5%

Before you go

What are the chances of seeing a Spotted Long-Horned Beetle in Montreal?

Rare

Under 5% of wildlife watchers report a Spotted Long-Horned Beetle sighting in Montreal on a given day, based on 9 verified sightings from GBIF citizen-science data. It is the 634th most-seen of the 926 insects we can rate there. Over three days the chance rises to about 10%, and over a week to about 20%, if each day is a fresh chance.

When is the best time to see a Spotted Long-Horned Beetle in Montreal?

Any time of year

In every month with enough records, under 5% of wildlife watchers report a Spotted Long-Horned Beetle in Montreal on a given day, so our monthly data shows no clear season.

Is Montreal the best place to see a Spotted Long-Horned Beetle?

Yes

Of the 2 cities where we can rate Spotted Long-Horned Beetle sightings, Montreal has the highest daily chance: under 5%. Next come Boston (United States, under 5%).

Which relatives of the Spotted Long-Horned Beetle live in Montreal?

Same family: Cerambycidae

The closest relatives of the Spotted Long-Horned Beetle that you can see in Montreal (family Cerambycidae, Longhorn Beetles) are Red Milkweed Beetle (about 10%), Locust Borer (about 10%) and Banded Longhorn Beetle (about 10%), with each one's daily chance of a sighting.

Where does the Spotted Long-Horned Beetle sighting chance come from?

GBIF citizen-science records

It is estimated from how often the Spotted Long-Horned Beetle is recorded against all the insects logged in Montreal (9 verified sightings), 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.

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