Entoma
Two-spotted longhorn bee, Melissodes bimaculatus, plate

Bees and bumblebees

Melissodes bimaculatus

Two-spotted longhorn bee

Males of this bee have antennae about twice as long as the females, who alone carry a stinger they rarely use.

WhereGardens, meadows and farm fields
Size11 to 15 mm body length
WhenJune to August

The two-spotted longhorn bee is a small, coal-black bee, 11 to 15 mm long, with long yellow hairs on the hind legs for carrying pollen. Females carry two pale spots near the tip of the abdomen, and males are recognized by antennae about twice the usual length.

Females dig individual nest burrows in bare or sparsely vegetated soil and stock each brood cell with pollen gathered from coneflowers, asters, sunflowers and garden vegetables. Only females carry a stinger, and this solitary bee rarely uses it, flying from June into August.

Traits

Habitat

Farmland

Colour

Black, Yellow

Active

Day

To people

Mild

Only females carry a stinger and rarely use it; this bee is docile and safe to observe closely.

Activity through the year

Often confused with

Eastern carpenter beeOpen entry ›
Xylocopa virginica

Much larger, with a shiny, hairless black abdomen, unlike the Two-spotted longhorn bee's small, densely hairy black and yellow body.

Questions

Is the Two-spotted longhorn bee dangerous to people?

Mild. Only females carry a stinger and rarely use it; this bee is docile and safe to observe closely.

When can you see the Two-spotted longhorn bee?

The Two-spotted longhorn bee can be seen from June to August, by day.

Plate retouched from a photo by Brandon Johnson, CC BY 4.0, iNaturalist Licence

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Last updated 2026-09-27. Every entry is checked against published sources.