Polygraphini

Chapuis

Genus Guides

3

Polygraphini is a tribe of wood-boring bark beetles within the Scolytinae. in this tribe are primarily associated with coniferous trees across five : Araucariaceae, Cupressaceae, Pinaceae, Podocarpaceae, and Taxaceae. and larvae feed and develop inside plant tissues, enabling inadvertent transport through global trade in logs, wood packaging materials, bonsai, and ornamental plants. Many species are economically significant pests affecting forests and agricultural crops worldwide.

Neomida bicornis P1380650a by 
xpda. Used under a CC BY-SA 4.0 license.Insect enemies of the spruce in the Northeast - a popular account of results of special investigations, with recommendations for preventing losses (1901) (14748638976) by Hopkins, Andrew Delmar, 1857-. Used under a No restrictions license.1956. Polygraphus rufipennis (Kby.) egg galleries and larval mines on wood surface of Picea engelmanni. (34466421840) by R6, State & Private Forestry, Forest Health Protection. Used under a Public domain license.

Pronunciation

How to pronounce Polygraphini: /ˌpɒl.iˈɡræf.ɪ.naɪ/

These audio files are automatically generated. While they are not always 100% accurate, they are a good starting point.

Images

Habitat

Forests and plantations dominated by coniferous trees, including members of Araucariaceae, Cupressaceae, Pinaceae, Podocarpaceae, and Taxaceae.

Distribution

Global distribution; frequently occur outside native ranges due to accidental introduction via international trade.

Diet

and larvae feed within dead wood and various tissues of live plants, boring internally through plant material.

Host Associations

  • Araucariaceae -
  • Cupressaceae -
  • Pinaceae -
  • Podocarpaceae -
  • Taxaceae -

Life Cycle

Development occurs entirely within plant tissues, including live plants, timber, wood products, and wood-packaging materials. Larvae can be transported across continents while protected inside plant material.

Behavior

Wood-boring beetles that tunnel through plant tissues. are frequently and accidentally moved outside native ranges through global trade. Larval development inside plant materials allows them to evade detection during phytosanitary inspections at ports of entry.

Ecological Role

Economically important pests of native forests and agricultural crops. affect biodiversity, functioning, and human well-being.

Human Relevance

Significant economic impact as pests of forestry and agriculture. are inadvertently spread through international commerce in wood products, live plants, and packaging materials, posing biosecurity risks.

More Details

Dataset coverage

The tribe is included in a comprehensive plant dataset covering 829 across five scolytine tribes (Hylastini, Hylurgini, Ipini, Phloeosinini, and Polygraphini). Host records derive from the Wood & Bright catalog and supplements, integrated with publications through July 2024. Records include primary, secondary, usual, and occasional hosts without distinction. Some species in the broader dataset lack host records.

Sources and further reading