Entoma
Small pincertail, Onychogomphus forcipatus, plate

Clubtails

Onychogomphus forcipatus

Small pincertail

Males carry three curved hooks at the tip of the abdomen, used to grip a female firmly by the neck during mating.

WhereGravelly rivers and streams
Size55 to 75 mm wingspan
WhenMay to August

This black and yellow dragonfly has blue-green eyes, green in the north and blue in Mediterranean areas, with two thin, wavy black shoulder stripes on the thorax and a wingspan of about 55 to 75 mm.

Nymphs develop buried in the gravel beds of rivers and streams, and adults patrol the same gravelly waterways, perching on stones or bare ground between short hunting flights.

Traits

Habitat

Wetland

Colour

Black, Yellow, Blue

Active

Day

To people

Harmless; adults do not bite or sting people.

Activity through the year

Often confused with

Large pincertailnot in guide
Onychogomphus uncatus

The large pincertail is bigger, growing up to 65 mm long, and has more extensive black markings across the thorax than the small pincertail's thinner, wavier stripes.

Questions

Is the Small pincertail dangerous to people?

Harmless; adults do not bite or sting people.

When can you see the Small pincertail?

The Small pincertail can be seen from May to August, by day.

Plate retouched from a photo by Слободан Стевчић, CC BY‑SA 4.0, Wikimedia Commons Licence

The plate on this page is shared under the same licence as its source, CC BY-SA.

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Dragonflies and damselflies›Clubtails›Onychogomphus

Last updated 2026-09-26. Every entry is checked against published sources.