Trinophylum cribratum, a species native to India and Pakistan described by Henry Walter Bates in 1878 [✧], was introduced to Great Britain in the first half of the 20th century.
It is currently widespread in several locations in South and East England. T. cribratum is highly polyphagous species, which larvae develop in dead wood and timber of both deciduous and coniferous trees
(e.g. Quercus, Malus, Fraxinus, Fagus, Betula, Carpinus, Pyrus, Platanus, Larix, Pinus). Biology is similar to
Phymatodes (Phymatodes) testaceus (Linnaeus, 1758) and like this species, T. cribratum can be a significant pest of processed wood. Life cycle 1 year (UK).
Adults, active from June to September, are crepuscular/nocturnal and can be attracted by light [❖].
| Body length: | 10.5 - 17 mm |
| Life cycle: | 1 year |
| Adults in: | July - September (UK) |
| Host plant: | polyphagous in deciuous and coniferous trees |
| Distribution: | introduced to United Kingdom, India, Pakistan |
The depicted beetle was collected in Daokthan environs (2600 m a.s.l., Reshian, Hattian Bala district, Azad Jammu and Kashmir, Pakistan) in 2001.
The living male specimen was photographed at the Cambridge University Botanic Garden (Cambridge, Cambridgeshire, East of England, UK) on July 15, 2023.
Collected by P. Heinz and Rhona Watson
[✧]
Bates H.W.:
On new Species of Coleopterous Insects (Geodephaga and Longicornia) taken by Dr. Stoliczka during the Forsyth Expedition to Kashgar in 1873-74.
Proceedings of the Scientific Meetings of the Zoological Society of London 1878: 713-721.
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[❖]
Uhthoff-Kaufmann R.R.:
The distribution of the genera Trinophylum Bates, Gracilia Serv., Aromia Serv., and Hylotrupes Serv. (Col.: Cerambycidae) in the British Isles.
Entomologist's Record and Journal of Variation 102 (11-12): 267-274, 1990.
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