Mesochorus (Mesochorus) gemellus Holmgren, 1860

Riedel, Matthias & Varga, Oleksandr, 2022, A checklist of the subfamily Mesochorinae (Hymenoptera, Ichneumonidae) from the Ukrainian Carpathians, Zootaxa 5100 (2), pp. 224-248 : 244

Mesochorus (Mesochorus) gemellus Holmgren, 1860 ( Fig. 38 )

Material examined. UKRAINE: Ivano-Frankivsk Region: 1 ♀, Mochary , 5 km NE of Bogorodchany, 48.837078 N, 24.58137, sweeping, 19.viii.2013 ; 1 ♀, Gorgany, m. Igrovets , 7 km SW of Stara Guta, 48.598571 N, 24.130344 E, 1500 m, subalpine zone, sweeping, 20.vi.2013 ; Transcarpathian Region: 1 ♀, Vynogradiv , beech forest, 48.138338 N, 23.073689 E, 320 m, 12.iv–2.v.2018 ; 1 ♀, idem, oak forest, 280 m, 48.138338°N, 23.073689°E, Malaise trap 4, 2–20.v.2018, leg. O. Varga ( SIZK) .

Distribution. Holarctic; first record for Ukraine.

Taxonomical remark. Face black; inner orbit cream-yellow, with ivory triangular spot opposite antennal grooves; hind tibia yellow, narrowly infuscate basally and in apical 0.1. The species was wrongly synonymized with Mesochorus tachypus and Mesochorus brevicollis Thomson, 1886 by Schwenke (1999: 108). A detailed description and comparison of these three species were published by Vikberg & Vårdal (2017: 5–17, 19–21).

Figures

FIGURES 36–39. The Carpathian Mesochorus spp. 36—M. vitticollis; 37—M. dilobatus; 38—M. gemellus; 39—M. gladiator.