Dusky Drone Fly

Eristalis obscura · Order: Diptera · Family: Syrphidae

No source yet on danger. We have no source yet on whether it bites, stings or damages anything.
Dusky Drone Fly
Photo: Matt Muir, CC BY

The dusky drone fly is a common syrphid species. It is native to the northern United States and Canada and also occurs across Europe and into Siberia. Its larvae live in water and filter-feed using a rat-tailed breathing tube.

Source: Wikipedia

How to recognize it

The dusky drone fly is a common syrphid species.

Source: Wikipedia

Where it lives

It inhabits northern parts of North America and Europe, extending eastward to Siberia.

Source: Wikipedia

What it eats

The larvae are aquatic filter-feeders with a rat-tailed breathing tube.

Source: Wikipedia

Life cycle

Eristalis obscura was first officially described by Loew in 1866.

Source: Wikipedia

Where it comes from

Its native range includes the northern United States and Canada, as well as Europe and Siberia.

Source: Wikipedia

Where it is found in the US

Recorded in 14 of 51 states and DC. Most records: Alaska, Maine, Minnesota, Vermont, New Hampshire, Colorado, Massachusetts, South Dakota.

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

Same family (Syrphidae)

Sources

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

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

Text written 2026-10-27 from the sources above and checked sentence by sentence against them. Data fetched 2026-10-27.

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.