Broad-banded Hornet Fly

Spilomyia alcimus · Order: Diptera · Family: Syrphidae

No source yet on danger. We have no source yet on whether it bites, stings or damages anything.
Broad-banded Hornet Fly
Photo: Forest Botial-Jarvis, CC BY

Its larvae live in moist rot holes of trees, and the species is native to Canada and the United States.

Source: Wikipedia

How to recognize it

Adults are frequently seen on flowers where they sip nectar and collect pollen.

Source: Wikipedia

Where it lives

The larvae develop in moist environments such as rot holes in trees.

Source: Wikipedia

What it eats

Adults obtain energy from flower nectar and protein from pollen.

Source: Wikipedia

Life cycle

Hoverflies can remain nearly motionless while in flight.

Source: Wikipedia

Where it comes from

It is native to Canada and the United States.

Source: Wikipedia

Where it is found in the US

Recorded in 36 of 51 states and DC. Most records: Massachusetts, New York, Illinois, Virginia, Pennsylvania, Ohio, Maryland, Maine.

Darker = more records. Counts are museum and citizen-science records, not population size.

Source: GBIF

Status: native in North America; native in Canada. Source: iNaturalist

Months it is reported in the US

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Source: GBIF

More photos

Questions people ask

Where are Broad-banded Hornet Flies found?

They are native to Canada and the United States and the adults are commonly seen on flowers.

Source: Wikipedia

What do the larvae live in?

The larvae develop in moist rot holes of trees.

Source: Wikipedia

What do adult flies eat?

Adults feed on nectar for energy and pollen for protein.

Source: Wikipedia

Can I recognize this fly by its behavior?

Adults can hover almost motionlessly while flying.

Source: Wikipedia

Same family (Syrphidae)

Sources

  • Wikipedia: https://en.wikipedia.org/wiki/Spilomyia_alcimus

Look it up elsewhere: GBIF · iNaturalist · BugGuide · ITIS · Wikipedia

Text written 2026-10-24 from the sources above and checked sentence by sentence against them. Data fetched 2026-10-24.

How this page works

This is one bug's fact sheet. The colored box at the top says whether it is dangerous. Sections below cover how to recognize it, whether it is a pest, and how to deal with it. The US map shows which states have records; tap a state to see other bugs there.

Every fact on Bug FAQ comes from a named source (university extension sites, government agencies, GBIF, iNaturalist, Wikipedia). The source is linked next to each section. If we have no source for something, we leave it out.