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Associations

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Foodplant / internal feeder
larva of Acanthocinus aedilis feeds within dead wood of Pinus sylvestris (native Scottish form)
Other: major host/prey

Foodplant / internal feeder
larva of Acanthocinus aedilis feeds within dead wood of Pinopsida
Other: minor host/prey

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Acanthocinus aedilis (Linnaeus, 1758)

provided by EOL authors
Eurosiberian species, distributed in Europe from the Iberian peninsula to the Caucasus [1]. The larva feeds on coniphers from the genera Pinus, Abies Picea, Larix and Cedrus. Eggs are delivered by the female under the bark of recently dead branches and trunks, often of stumps from felling, and pupal chambers are performed between the bark and the wood. In thick barks from stumps of Pinus silvestris, closed chambers inside the bark, not communicated with the surface of the wood, have been described [2]. Adults appear at late summer or early fall, spend the winter under the protection of the pupal chamber, and fly at noon from early spring. They are attracted by the smell of resin, but not by flowers or light. Mating takes place at night on branches and trunks where eggs will be delivered. Under favourable conditions, two generations may come to emerge per year.

Timberman beetle

provided by wikipedia EN

The timberman beetle (Acanthocinus aedilis) is a species of woodboring beetle belonging to the longhorn beetle family.[1]

It is found in woodlands, with a large distribution through Europe, Russia and Central Asia. It is also known as the Siberian Timberman due to its range extending northwards in to Siberia.[2] In Finnish this species is known as Sarvijaakko, in Dutch as Dennenboktor and in Swedish as Större Timmerman.[3] For more vernacular names see the GBIF profile.[4] Despite a few sources suggesting reports in Central America, no confirmed reports were available at time of editing (May, 2020). The species is also not listed as invasive in North America.[5]

The body length ranges from 12-20mm, with antennae up for 3 times the body length in males, or 1.5 times the body length in females.[2] Their lifespan is up to 3 years which includes the 1–2 years spent in the larval stage.[6]

This species is capable of surviving freezing temperatures below -37 °C in both the adult and larval stages.[7] The adults are active from March to June, during which they are diurnal.[2] The adults overwinter in pupal chambers in leaf litter or under the bark.[8]

In Continental Europe, this species has become a serious pest of commercially-grown timber as the larvae feed under the bark, weakening the trees.[2] Through infesting weakened trees, excavating galleries under the bark, the trees then die.[8] Their development within wood debris in natural forests is beneficial for nutrient cycling in forest ecosystems, but can also facilitate the transfer of pathogenic fungi within woodlands.[9] Scots pine (Pinus sylvestris L.) and Norway Spruce (Picea abies) are key food sources for this beetle species.[1]

A distribution map within the UK can be found courtesy of the National Biodiversity Network.[10][11] The species is reported to be Nationally Scarce category B within Great Britain by the Wildlife Trust BCN in 2018.

References

  1. ^ a b "Timberman - Encyclopedia of Life".
  2. ^ a b c d "Acanthocinus aedilis".
  3. ^ "PESI portal - Acanthocinus aedilis (Linnaeus, 1758)".
  4. ^ "Acanthocinus aedilis (Linnaeus, 1758)".
  5. ^ "Siberian timberman, Acanthocinus aedilis Coleoptera: Cerambycidae".
  6. ^ "Timberman - Acanthocinus aedilis - UK Safari".
  7. ^ Kristiansen E, Li NG, Averensky AI, Laugsand AE, Zachariassen KE. The Siberian timberman Acanthocinus aedilis: a freeze-tolerant beetle with low supercooling points. J Comp Physiol B. 2009;179(5):563‐568. doi:10.1007/s00360-009-0340-x
  8. ^ a b "Atlas/Acanthocinus aedilis - Bugwoodwiki".
  9. ^ Meshkova, Valentyna & I., Kochetova & Ye, Skrylnik & Zinchenko, O.. (2017). Seasonal development of the timberman beetle Acanthocinus aedilis (Linnaeus, 1758) (Coleoptera: Cerambycidae) in the North-Eastern Steppe of Ukraine. Annals of the Entomological Society of America. 25.
  10. ^ "Acanthocinus aedilis (Linnaeus, 1758) | UK Beetle Recording".
  11. ^ "Acanthocinus aedilis : Timberman Beetle | NBN Atlas".

Insect Natural History, A.D.Imms, Collins, 1973

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Wikipedia authors and editors
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Timberman beetle: Brief Summary

provided by wikipedia EN

The timberman beetle (Acanthocinus aedilis) is a species of woodboring beetle belonging to the longhorn beetle family.

It is found in woodlands, with a large distribution through Europe, Russia and Central Asia. It is also known as the Siberian Timberman due to its range extending northwards in to Siberia. In Finnish this species is known as Sarvijaakko, in Dutch as Dennenboktor and in Swedish as Större Timmerman. For more vernacular names see the GBIF profile. Despite a few sources suggesting reports in Central America, no confirmed reports were available at time of editing (May, 2020). The species is also not listed as invasive in North America.

The body length ranges from 12-20mm, with antennae up for 3 times the body length in males, or 1.5 times the body length in females. Their lifespan is up to 3 years which includes the 1–2 years spent in the larval stage.

This species is capable of surviving freezing temperatures below -37 °C in both the adult and larval stages. The adults are active from March to June, during which they are diurnal. The adults overwinter in pupal chambers in leaf litter or under the bark.

In Continental Europe, this species has become a serious pest of commercially-grown timber as the larvae feed under the bark, weakening the trees. Through infesting weakened trees, excavating galleries under the bark, the trees then die. Their development within wood debris in natural forests is beneficial for nutrient cycling in forest ecosystems, but can also facilitate the transfer of pathogenic fungi within woodlands. Scots pine (Pinus sylvestris L.) and Norway Spruce (Picea abies) are key food sources for this beetle species.

A distribution map within the UK can be found courtesy of the National Biodiversity Network. The species is reported to be Nationally Scarce category B within Great Britain by the Wildlife Trust BCN in 2018.

license
cc-by-sa-3.0
copyright
Wikipedia authors and editors
original
visit source
partner site
wikipedia EN