Dancing Kiss Fly

Platystoma seminationis · Order: Diptera · Family: Platystomatidae

Also called: Fly

No source yet on danger. We have no source yet on whether it bites, stings or damages anything.
Dancing Kiss Fly
Photo: Gilles San Martin, CC BY-SA

The dancing kiss fly is a small insect about 5.5 to 6.5 mm long, with reddish-brown eyes, black face area and translucent grey-brown wings marked with light spots. It lives on shady herbaceous plants at forest edges and hedges across most of Europe and the Near East, and adults are active from May through October.

Source: Wikipedia

How to recognize it

The space between the eyes and the mouthparts are black, the eyes are reddish-brown, and the wings are translucent grey-brown with pale spots.

Source: Wikipedia

Size

Adults measure between 5.5 and 6.5 mm in body length.

Source: Wikipedia

Where it lives

They are found on low herbaceous vegetation in shady spots at forest margins or hedgerows.

Source: Wikipedia

What it eats

Larvae develop in decaying plant material, mushrooms and mushroom-infected roots, feeding on this organic matter.

Source: Wikipedia

Life cycle

Mating involves a courtship dance followed by a brief “kiss” where the male and female touch proboscises for several seconds.

Source: Wikipedia

When you see it

Adults can be observed from May until October.

Source: Wikipedia

Where it comes from

The species occurs throughout most of Europe and also in the Near East.

Source: Wikipedia

Where it is found in the US

Recorded in 4 of 51 states and DC. Most records: Illinois, Wisconsin, Minnesota, Colorado.

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

Source: GBIF

Status: introduced in United States; introduced in Canada. Source: iNaturalist

Months it is reported in the US

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Source: GBIF

More photos

Questions people ask

When are dancing kiss flies active?

Adults are present from May through October.

Source: Wikipedia

What do the larvae eat?

The larvae feed on decaying vegetable matter, mushrooms and roots of plants infected by mushrooms.

Source: Wikipedia

Same family (Platystomatidae)

Sources

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

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

Text written 2026-10-25 from the sources above and checked sentence by sentence against them. Data fetched 2026-10-25.

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.