Eodorcadion (Eodorcadion) chinganicum darigangense (Heyrovský, 1967)

Karpiński, Lech, Enkhnasan, Davaadorj, Boldgiv, Bazartseren, Kruszelnicki, Lech, Iderzorig, Badamnyambuu, Gantulga, Temerlen, Dorjsuren, Altanchimeg & Szczepański, Wojciech T., 2021, Longhorned beetles (Coleoptera: Cerambycidae) of southeastern Mongolia with particular emphasis on the genus Anoplistes Audinet-Serville, 1833 (Cerambycinae: Trachyderini), Zootaxa 5081 (4), pp. 451-482 : 468

* Eodorcadion (Eodorcadion) chinganicum darigangense (Heyrovský, 1967)

Fig. 8H

New record. Sükhbaatar: Dariganga, Taliin agui [45.352, 114.300], 03.07.2019, 1 ♀, leg. BI ( MIZ) .

Literature data. Sükhbaatar: Dariganga [ca. 45.299, 113.840], 1100 m a.s.l., 05.08.1965, 1 ex., exp. Dr. Z. Kaszab ( Heyrovský 1967b) ; Dariganga [ca. 45.299, 113.840], 1150 m a.s.l., 5.08.1965, holotype, 1 ♂ (elytra only), exp. Dr. Z. Kaszab ( HNHM) ( Danilevsky 2007: as E. darigangense ) ; Dariganga env., Duut-Nuur , 20.07.1985, 6 ♂♂, 1 ♀, Ulykpan leg. ( MD, JV) (ibid) ; Dariganga env., Zeget-Nur , 20.07.1985, 1 ♂, 1 ♀, Ulykpan leg. ( MD) (ibid) ; 2 km W Dariganga , 1230 m a.s.l., [ca. 45.299, 113.816], 14– 15.07.2002, 1 ♂, and elytra, M. Danilevsky leg. ( MD) (ibid) .

Remarks. Eodorcadion chinganicum currently includes three subspecies; two of them are distributed exclusively in China. Eodorcadion chinganicum darigangense was reduced to subspecific level by Danilevsky & Lin (2012a). According to these authors, the range of this taxon is limited to Dariganga environs in the southern part of Sükhbaatar aimag in Mongolia.

It seems this is one of the first Eodorcadion species occurring in the season; according to Danilevsky (2007), adults are active in July and they completely disappear in August. It is worth to note that four other Eodorcadion species were recorded in the environs of Dariganga, including E. exaratum exaratum , which sometimes occurs in the same sites, however afterwards, when most adult individuals of E. chinganicum are already dead ( Danilevsky 2007).

Figures

FIGURE 8. Habitus of longhorned beetle taxa distributed in the region of SE Mongolia (genus Eodorcadion). A, Eodorcadion intermedium intermedium (male); B, E. intermedium intermedium (female); C, Eodorcadion zichyi (male); D, Eodorcadion exaratum argali (male); E, E. exaratum argali (male); F, E. exaratum argali (female); G, E. exaratum argali (female, melanistic form); H, Eodorcadion chinganicum darigangense (female); I, Eodorcadion carinatum involvens (male); J, E. carinatum involvens (female); K, Eodorcadion humerale impluviatum (male); L, E. humerale impluviatum (female). Scale bar: 5 mm.