Pachyta lamed (Linnaeus, 1758)

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 : 109

Pachyta lamed (Linnaeus, 1758) Fig. 1G

Material examined.

Selenge Aimag: 35 km NE of Zuunkharaa , dark taiga (48°59'N, 106°55'E), 1399 m a.s.l., 05 VIII 2015, 1♂, on Chamaenerion angustifolium , leg. MW .

Remarks.

Pachyta lamed is a widely distributed Holarctic species. In the Palaearctic region, it primarily occurs in the northern parts of Europe and Asia ( Cherepanov 1990a). The species mainly inhabits coniferous forests having a large share of spruce ( Picea spp.), which is the host plant of the larvae. The adults fly from the end of June to mid-August. After mating, the females lay eggs on the thin roots of decaying thick-trunked trees. After their third hibernation, the larvae abandon the galleries and make pupal cells in the upper layer of the soil ( Cherepanov 1990a).

In Mongolia, it is rarely encountered in the taiga ecosystem (e.g., Namhaidorzh 1972, Müller et al. 2013).

Only a single male was observed on the fireweed Chamaenerion angustifolium on the exposed site in dark taiga habitat (Fig. 6A ).

Figures

Figure 1. Photos of longhorn beetles specimens collected during the expedition to Mongolia in 2015: A Gaurotes virginea aemula (female) B Stictoleptura variicornis (male) C S. variicornis (female) D Anastrangalia sequensi (male) E A. sequensi (male, melanistic form) F A. sequensi (female) G Pachyta lamed (male) H Lepturalia nigripes rufipennis (male) I Pachytodes longipes (female).

Figure 6. Field photos of imagines in nature, immature stages and habitats of typical Mongolian cerambycid species: A spruces, firs and birches in dark taiga, the habitat of Pachyta lamed, P. quadrimaculata and Lepturobosca virens B site with fireweed Chamaenerion angustifolium in dark taiga, the habitat of several anthopilous species e. g., Gaurotes virginea aemula, Stictoleptura variicornis C male of S. variicornis on Filipendula palmata D males of Anastrangalia sequensi on Seseli condensatum E larches in forest steppe, the habitat of A. sequensi F riverbank in light taiga, the habitat of Pachytodes longipes G larva of Oedecnema gebleri in larch wood H burned larches in forest steppe, the habitat of O. gebleri and A. sequensi.