Leioderes kollari L. Redtenbacher, 1849
ssp. kollari L. Redtenbacher, 1849

Leioderes kollari kollari
[Photo © Tamás Németh]

Leioderes kollari, a broadly distributed but not common European species inhabiting forests, parks, and anthropogenic biotopes as well as semi-open areas, has been described from Austria by Ludwig Redtenbacher in 1849 [▽].

According to Rejzek and Rébl [❖] the preferred host of this species in Central Europe is field maple (Acer campestre). Thicker branches and trunks are usually attacked. Larvae feed subcortically and later in sapwood creating a very characteristic frass pattern filled with fine sawdust. When entering the wood the larvae never block the entrance holes. They secure the pupal cells by a wad of frass deeper in the wood. The beetles can occasionally be found on flowers but they probably gather on them during the night and stay there a substantial part of the next day, analogous to their close relative Leioderes tuerki, a typical nocturnal species. Leioderes tuerki is not active before dusk and during the night it flies around cordwood and comes to flowering plants, shrubs and trees. During the next morning it can for example be found sitting on flowering hawthorn, but it disappears before noon. Most of the beetles spend the day sitting on leaves of the host plants (Juglans regia and others in case of Leioderes tuerki).

Body length:9 - 15 mm
Life cycle:1 - 2 years
Adults in:May - June
Host plant:polyphagous in deciduous trees (Acer, Ulmus, Quercus)
Distribution:Albania, Austria, Belarus, Bosnia and Herzegovina, Bulgaria, Croatia, Czechia, France, Germany, Greece, Hungary, Italy, Latvia, Montenegro, North Macedonia, Norway, Poland, Romania, Russia, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Ukraine

The depicted beetleswere reared from larvae collected in dead field maple (Acer camperstre) in Křivoklátsko Protected Landscape Area (Central Bohemia, Czechia) and in Hungary.

Collected by Tamás Németh and Miroslav Polcar

Redtenbacher L.:
Fauna Austriaca. Die Käfer. Nach der analytischen Methode bearbeitet.
Carl Gerold, Wien, 883 pp, 1849. [download pdf icon]

Rejzek M. and Rébl K.:
Cerambycidae of Křivoklátsko Biosphere Reserve (Central Bohemia) (Insecta: Coleoptera).
Mitteilungen des Internationalen Entomologischen Vereins e. V., Frankfurt a. Main, Supplement VI: 1–69, 1999.

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 [pages 135-136], 1998 [ISBN: 80-238-2627-1]. [download pdf icon]

Leioderes kollari kollari
[Photo © Milan Lovětínský]
Leioderes kollari kollari
Leioderes kollari kollari
Leioderes kollari kollari
[Photo © Milan Lovětínský]

SubfamiliaCerambycinae Latreille, 1802
TribusCallidiini Mulsant, 1839
GenusLeioderes L. Redtenbacher, 1849
SpeciesLeioderes kollari L. Redtenbacher, 1849
SubspeciesLeioderes kollari kollari L. Redtenbacher, 1849