Spruce Zebra Beetle

Pronunciation

How to pronounce Xylotrechus undulatus: /ksaɪˈloʊtrɛkəs ˌʌndjʊˈleɪtəs/

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Summary

Xylotrechus undulatus, known as the Spruce Zebra Beetle, is a distinctive black and white-striped beetle found primarily in coniferous forests across North America. Its larvae are wood borers that feed under the bark of various conifers, particularly spruce.

Physical Characteristics

Adult Xylotrechus undulatus are characterized by their distinct zebra-like black and white banding on their elytra, giving them a unique appearance among cerambycid beetles.

Identification Tips

Look for the black and white striped pattern on the elytra and the elongated body shape typical of the Clytini tribe.

Habitat

Xylotrechus undulatus is commonly found in coniferous and mixed forests across North America.

Distribution

Transcontinental distribution in the northern United States, extending south to Oregon, Colorado, Minnesota, Ohio, and Maine.

Diet

The larvae of Xylotrechus undulatus feed primarily on the wood under the bark of spruce (Picea spp.) and other conifers.

Life Cycle

The life cycle involves eggs being laid by adults, with larvae developing under the bark and subsequently pupating.

Reproduction

Reproduction occurs in the warmer months, specifically during June and July when adults are active.

Ecosystem Role

As wood-boring beetles, they play a role in breaking down dead and decaying trees, which helps in nutrient cycling.

Collecting Methods

• Trapping with baited traps
• Hand collecting from host trees

Preservation Methods

• Ethanol preservation for specimens
• Pinned and dried specimens for entomological collections

Similar Taxa

• Xylotrechus longitarsis

Tags

• beetle
• cerambycidae
• Xylotrechus
• Spruce Zebra Beetle