Acanthocinus (Acanthocinus) aedilis (Linnaeus, 1758)

Subfamilia: LAMIINAE  /  Tribus: ACANTHOCININI
Acanthocinus aedilis
Acanthocinus aedilis male;+♀ [Photo © Milan Lovětínský]
Acanthocinus aedilis, a widely distributed Euro-Asian cerambycid species, is a typical inhabitant of continuous pine forests as well as small pine grooves. Development mainly under thick, rarely under the thin bark of felled, uprooted or otherwise dead trees. Because the thicker trunks are taken from the forest, the development is most often under the bark of the stumps. For standing trees, almost only the lower parts are attacked, but lying trunks along their entire length except parts with very thin bark. The larvae feed beneath the bark, creating a flat galleries. Prior the pupation, larvae bore pupal cells in sapwood, usually up to 2 cm below the wood surface. Often, in the case of thick bark, the pupal cell surrounded by oval chamber from wooden splinters is made directly in the bark or between bark and sapwood. Adults hatch from August to October and overwinter in pupal cells. Very exceptionally, after the long warm season, adults emerge wood during the autumn months. From these findings a frequently published mistake of two generations a year emerged. The life-cycle is usually two years, but the one-year one is also reliably proven. Adults occur in nature sometimes in March, usually from mid-April to mid-May, sometimes until early June. A. aedilis is an crepuscular and nocturnal species, during the day the beetles are usually hidden in the bark crevices and under the wood, but they often run over the logs or fallen trees, sometimes even fly [❖].

Palearctic taxa of the Acanthocinus genus were divided into two subgenera, Acanthocinus s.s. and Acanthobatesianus, on the basis of morphological differences at the generic level by Henrik Wallin et al. [✧].

Body length:12 - 20 mm
Life cycle:1 - 2 years
Adults in:March - September
Host plant:pines (Pinus), rarely in other coniferous trees
Distribution:Albania, Austria, Belarus, Belgium, Bulgaria, Croatia, Czechia, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Italy, Luxembourg, Netherlands, Norway, Poland, Portugal, Romania, Russia, Serbia, Sicily, Slovakia, Slovenia, Spain, Sweden, Switzerland, United Kingdom, China, Mongolia, North Korea

The live beetles were collected in: (DR) - Oleško village environs (Litoměčice district, Ústí na Labem region, North Bohemia, Czechia on May 11, 2015; (ML) - Olešná u Rakovníka environs (Rakovník district, Central Bohemia, Czechia) in April 2022. The mounted specimens were collected in Kulmbach environs (Upper Franconia, Bavaria, Germany) in spring 1977.

Collected by Daniel Rydzi, Milan Lovětínský and Udo Schmidt

Sláma M.E.F.:
Tesaříkovití – Cerambycidae České republiky a Slovenské republiky / Cerambycidae of the Czech Republic and Slovak Republic.
Milan Sláma private printing, Krhanice, 383pp, 1998 [ISBN: 80-238-2627-1]. [download pdf icon]

Wallin H., Kwamme T. and Lin M.:
A review of the genera Leiopus Audinet-Serville, 1835 and Acanthocinus, Dejean, 1821 (Coleoptera: Cerambycidae, Lamiinae, Acanthocinini) in Asia, with descriptions of six new species of Leiopus from China.
Zootaxa 3326: 1–36, 2012. [download pdf icon]

Acanthocinus aedilis
[Photo © Udo Schmidt, click on the picture for 4K resolution]
Acanthocinus aedilis
Acanthocinus aedilis ♂ Photo © Daniel Rydzi]
Acanthocinus aedilis
Acanthocinus aedilis
Acanthocinus aedilis ♀ [Photo © Milan Lovětínský]
Acanthocinus aedilis
Acanthocinus aedilis
Acanthocinus aedilis
Acanthocinus aedilis
Acanthocinus aedilis
Acanthocinus aedilis
Acanthocinus aedilis ♂+♀ [Photo © Milan Lovětínský]

SubfamiliaLamiinae Latreille, 1825
Tribus Acanthocinini Blanchard, 1845
GenusAcanthocinus Dejean, 1821
SubgenusAcanthocinus Dejean, 1821
SpeciesAcanthocinus (Acanthocinus) aedilis (Linnaeus, 1758)