Mesochorus frondosus Schwenke, 1999

Riedel, Matthias & Varga, Oleksandr, 2022, A checklist of the subfamily Mesochorinae (Hymenoptera, Ichneumonidae) from the Ukrainian Carpathians, Zootaxa 5100 (2), pp. 224-248 : 228

Mesochorus frondosus Schwenke, 1999 ( Fig. 5 )

Material examined. UKRAINE: lvano-Frankivsk Region : 1 ♀, Gorgany , m. Igrovets, 7 km SW of Stara Guta, 48.355468°N, 24.075256°E, 1375 m, border between coniferous forest and subalpine zone, Malaise trap 3, 2–20.vii.2014 ; 1 ♀, idem, 20.vii–8.viii.2014 ; 2 ♀♀, idem, 7.5 km SW of Stara Guta , 48.355129°N, 24.73943°E, 1500 m, subalpine zone, Malaise trap 4, 2–20.vii.2014 ; 2 ♀♀, idem, 20.vii–8.viii.2014 ; Transcarpathian Region : 1 ♀, Svydovets , 2–3 km NW of Kvasy, 48.090889°N, 24.155835°E, 850–900 m, beech forest, Malaise trap, 29.vi–15.vii.2014, leg. O. Varga ( SIZK) .

Distribution. Northern and Central Europe; first record for Ukraine.

Taxonomical remark. The Ukrainian specimens are smaller than the type material (1.8–2.2 mm vs. 2.5 mm in the holotype), but has the characteristic brown to black face and the typical shape of its ovipositor sheath.

nigripes -group sensu Schwenke (1999: 42–45)

Figures

FIGURES 3–6. The Carpathian Mesochorus spp. 3—M. iwatensis; 4—M. curvulus; 5—M. frondosus; 6—M. alpigenus.