Eodorcadion oryx (Jakovlev, 1895)

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 : 123-124

Eodorcadion oryx (Jakovlev, 1895) Figs 4B, C , 14B, C

Material examined.

Bayankhongor Aimag: 10 km S of Khairkhandulaan [ Хайрхандулаан] (45°48'N, 101°59'E), 1748 m a.s.l., 18 VIII 2015, 1♂; 19 VIII 2015, 13♂♂, 2♀♀ , leg. LK; 16♂♂, 6♀♀, leg. MW; 7♂♂, 2♀♀, leg. WTS.

Remarks.

Eodorcadion oryx is an endemic Mongolian species that is distributed in the south-western part of the country. It is a species that has very rarely been collected and there are records from only two known localities to date ( Danilevsky 2007).

In the investigated locality, the species inhabits the periphery of a drying lake that has a mix of high and low grass (Fig. 14D, E ). We collected most of the specimens before noon (10 a.m. - 12 p.m.) during sunny weather. Although the population was dominated by males (Fig. 14B ), females (Fig. 14C ) probably began to come out of hiding a little later. The day before, in the late evening, only lifeless imagines were observed, i.e., freshly dead female at the front of a rodent hole.

Figures

Figure 4. Photos of longhorn beetles specimens collected during the expedition to Mongolia in 2015: A Eodorcadion maurum australe (female) B Eodorcadion oryx (male) C E. oryx (female) D Eodorcadion exaratum argali (male) E E. exaratum argali (female) F Eodorcadion intermedium intermedium (male, reddish form) G E. intermedium intermedium (male, intermediate form) H E. intermedium intermedium (male, blackish form) I E. intermedium intermedium (female, reddish form).

Figure 14. Field photos of imagines in nature and habitats of typical Mongolian cerambycid species: A remains of imago of Eodorcadion intermedium intermedium in a bird's pellet B male of Eodorcadion oryx C female of E. oryx D periphery of a drying lake with a mix of high and low grass, the habitat of E. oryx and Eodorcadion humerale impluviatum E detailed view of the habitat of E. oryx and E. humerale impluviatum F female of Eodorcadion exaratum argali G female of E. exaratum argali under cow dung H pasture with low grass and herbs in Ulaanshiveet environs, the habitat of E. exaratum argali.