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Section N

Most of the beetles in this group are characterised by long antennae and a cylindrical body shape, but there are exceptions. If you are uncertain if a beetle is a true long horn look at the second antennal segment. In true Cerambycids (longhorns) this segment is smaller than the others.

There is a national recording scheme that has both a facebook page and a twitter account ran by both the Lord of Longhorns Wil Heeney and the Lady of longhorns Katy Potts. So if something interesting lands in your trap, ensure you record your sightings. 

Fancy a Key? Try one of Mikes HERE


Pogonocherus hispidus 

ID Features

Two spikes at the rear of the elytra

Black/brown scutellum 

4.0-6.5 mm

April- september

There are two other similar species 

P. hispidulus: Also has 2 spikes at the rear but has white scutellum 6.0-70 mm

P.fasciculatus: has no spikes at the rear 5.0-8.0 mm


Arhoplus rusticus


ID Features

Wide head

evenly curved sides to the pronotum

Covered in dull grey hair (pubescence)

Hind tarsomere 3 incised deeply (pictured right)

Hairy eyes 



A. Ferus

Looks very similiar however hind tarsomere 3 is not as deeply incised as that of A. rusticus (pictured right) and has no hairs on the eyes. 9.0-27.0 mm


Prionus corarius

An absolute stonker of a beetle, which is difficult to mix with any other species. Eggs are laid in crevices of bark and develop for at least 3 years feeding on the rotting wood. 

ID Features

Spiked edges on pronotum

18.0-45.0 mm

Not hairy 

Serrated antennae (more so in males)

Dark brown to black



Phymatodes testaceus


Two beetles for the price of one! This species comes in two colour forms, a metallic blue/green with a red pronotum or a paler brown with an orange pronotum, head and appendages 

ID Features

rounded sides to pronotum

rectangular shaped elytra

The first tarsomere on the hind leg is longer than the total length of the 2nd and third (separating it from Poecilium lividium)

6-18 mm

All year round 


The odd one out 

Pseudocistela ceramboides


Family: Tenebrionidae


ID Features

  • Large boggled eyes

  • Serrated antennae 

  • Chestnut brown elytra 

  • Black head, pronotum and appendages 

  • 10-12 mm   


      June - ?

Superficially resembles the other tenebrionids Lagria hirta and Isomira murina

Tenebrionidae - its all in the cheeks 

Tenebrionidae are very varied in appearence and it can be a pain to separate them from very similar looking beetles. In most instances they can be split by looking at the Gena, effectively the cheeks of the beetle. In Tenebrionidae the gena protrude across the front of the eye, giving them almost cartoon like cheek features. It certainly works for splitting Nalassus from other UK Carabidae. 

Typical Tenebrionid head showing expanded genae marked in red via: Wikicommons

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