Macroleptura thoracica (Creutzer, 1799)

Karpinski, Lech, Szczepanski, Wojciech T., Boldgiv, Bazartseren & Walczak, Marcin, 2018, New data on the longhorn beetles of Mongolia with particular emphasis on the genus Eodorcadion Breuning, 1947 (Coleoptera, Cerambycidae), ZooKeys 739, pp. 107-150 : 113

Macroleptura thoracica (Creutzer, 1799)

Material examined.

Selenge Aimag : 25 km NE of Zuunkharaa (49°04'N, 106°49'E), 1399 m a.s.l., 01 VIII 2015, 1♂, 1♀, dead imagines, Populus tremula , leg. LK .

Remarks.

The species is distributed from northern and eastern Europe through Siberia, northern China, Mongolia, the Korean peninsula, and Sakhalin to Japan ( Danilevsky 2017a). In Europe, this species is strictly protected by European law. Although Macroleptura thoracica is mostly polyphagous on deciduous trees ( Švácha and Danilevsky 1989, Sama 2002), it was also observed on the fir Abies sp. in Japan ( Sama 2002). The species inhabits the dead, rotten wood of thick trunks. The adults fly from June to August and usually stay on their host plants; they rarely visit flowers ( Sama 2002). In Mongolia, this is rare species that is not numerous (e.g., Namhaidorzh 1972, 1976a).

The remains of two specimens were found deep in the wood of the trunk of the stately poplar Populus tremula together with numerous larval feeding grounds. This primeval forest relict species, which is very rare in Europe, appears to be rather numerous in this region. This indicates the high degree of the naturalness of the Mongolian habitats.