Native Elm Bark Beetle

Pronunciation

How to pronounce Hylurgopinus rufipes: //hʌɪˌlɜːrɡoʊˈpaɪnəs ˈruːfɪˌpiːz//

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Summary

Hylurgopinus rufipes, known as the native elm bark beetle, is a species of elm bark beetles in the tribe Hylesinini and is of significant importance as a vector of Dutch elm disease.

Physical Characteristics

Brownish-red in color, 2-3.5 mm long.

Identification Tips

Look for adults on dying or moist dead limbs of elm trees.

Habitat

Bark of large branches and boles of Ulmus, especially on dying or moist limbs.

Distribution

Found in Canada and the United States, east of the Rockies.

Diet

Feeds on basswood, ash, and wild cherry.

Life Cycle

Overwinters either as larvae or adults in the bark of elm trees. Pupation occurs in cells at the end of the larval tunnels.

Reproduction

Adults prefer to lay eggs in dying or fairly moist dead limbs at least 2 inches in diameter. They construct a 2-branched egg gallery and lay eggs on both sides.

Ecosystem Role

Vector of Dutch elm disease, caused by the fungus Ceratocystis ulmi.

Tags

• beetle
• elm
• Dutch elm disease
• Hylurgopinus rufipes