Monochamus sutor longulus (Pic, 1898)

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 : 126

Monochamus sutor longulus (Pic, 1898) Fig. 5F

Material examined.

Toev Aimag : 75 km NE of Ulaanbaatar (48°10'N, 107°55'E), 1589 m a.s.l., 30 VII 2015 (26 II 2016, ex cult), 1♀, from Larix sibirica , leg. MW .

Remarks.

Monochamus sutor is a boreal montane species that is widely distributed in Europe; in Asia, it is known from Georgia, Russia, Kazakhstan, and Mongolia. It is also an invasive species in North America ( Danilevsky 2017a). This species is ecologically associated with various conifer trees. Its life cycle lasts from one to three years. The imagines are active from June to mid-September ( Cherepanov 1990c, Kolk and Starzyk 1996).

Monochamus sutor longulus has a more eastern range compared to the nominative subspecies, and is distributed from East Siberia through northern Mongolia, China and North Korea to the Far East and Japan. It differs from the nominative form inter alia in its slightly more elongated elytra with glabrous and shining surface. According to Wallin et al. (2013), there is no difference in the male genitalia characters between the examined specimens of those two subspecies.

In Mongolia, this taxon was probably incorrectly identified in certain works (e.g., Heyrovský 1965, 1969, 1973a) and it was recorded as Monochamus sutor var. pellio (Germar, 1818), which is currently recognized as a synonym of the nominative subspecies.

One female was reared from a branch of a fallen tree of Larix sibirica collected in forest steppe habitat (Fig. 7D ). The same material was inhabited by larvae of Clytus arietoides and Monochamus impluviatus .

Figures

Figure 5. Photos of longhorn beetles specimens collected during the expedition to Mongolia in 2015: A Aegomorphus obscurior (male) B Mesosa myops (male) C M. myops (female) D Monochamus impluviatus impluviatus (male) E M. impluviatus impluviatus (female) F Monochamus sutor longulus (female) G Monochamus sartor urussovii (male) H Agapanthia pilicornis pilicornis (male).

Figure 7. Field photos of immature stages and habitats of typical Mongolian cerambycid species: A larches in forest steppe, the habitat of Lepturalia nigripes rufipennis B larva of L. nigripes in a birch stump C site in light taiga, the habitat of L. nigripes rufipennis and Agapanthia pilicornis pilicornis D site in forest steppe, the habitat of Clytus arietoides, Monochamus impluviatus impluviatus and M. sutor longulus E broken trunk of the birch in light taiga, the microhabitat of inter alia Xylotrechus hircus and Aegomorphus obscurior F birches in light taiga, the habitat of X. hircus, A. obscurior, Saperda scalaris hieroglyphica and Mesosa myops G larva of Xylotrechus pantherinus H larva of X. pantherinus deep in the wood of a standing willow trunk.