Euura sagmarius ( Konow, 1895 )

Prous, Marko, Liston, Andrew, Monckton, Spencer K., Kramp, Katja, Vårdal, Hege, Vikberg, Veli, Heibo, Erik & Mutanen, Marko, 2025, West Palaearctic species of Euura Newman, 1837 (Hymenoptera, Tenthredinidae), European Journal of Taxonomy 977, pp. 1-377 : 127-128

publication ID	https://doi.org/10.5852/ejt.2025.977.2799
publication LSID	lsid:zoobank.org:pub:73DA044B-EB3D-4BF1-97EA-7430036DEEE0
DOI	https://doi.org/10.5281/zenodo.15020958
persistent identifier	https://treatment.plazi.org/id/03BCA619-FFA6-D86D-972B-FB62FBE8FC5D
treatment provided by	Plazi
scientific name	Euura sagmarius ( Konow, 1895 )
status

Treatment

181 Euura sagmarius ( Konow, 1895)

Figs 199 View Figs 199–202 , 427 View Figs 422–435

Amauronematus sagmarius Konow, 1895: 177–178 . Lectotype designated by Muche (1975). Amauronematus viduatinus Malaise, 1931b: 40–41 . Lectotype designated below. Syn. nov. Amauronematus viduatinus var. apiciscerra Malaise, 1931b: 41 . Lectotype designated below. Syn. nov.

Diagnosis

The palest females have a nearly completely reddish head and thorax (except antenna), while the abdomen is still dorsally mostly black, separating them from E. miltonota (mostly yellowish, including the abdomen dorsally). The darkest specimens might not be reliably distinguishable from E. nimbus if the mesepisternum becomes completely black (usually at least slightly brownish or reddish). Males might not be clearly distinguishable from E. nimbus .

Female ZMUO.064651 with almost completely black mesepisternum (slightly brown line in the middle), labrum, clypeus and malar space pale, head behind and above eyes slightly brownish, abdomen ventroapically mostly pale.

Type material examined

Lectotype Amauronematus sagmarius

RUSSIA – Volgograd oblast • ♀; Sarepta [Volgograd]; 48.69° N, 44.53° E; SDEI, GBIF-GISHym4100 . GoogleMaps

Lectotype Amauronematus viduatinus , here designated

RUSSIA – Kamchatka oblast • ♀; Nischne-Kamtchatsk, Lake Azhabachye ; 56.166° N, 161.893° E; R. Malaise leg.; NHRS, NHRS-HEVA000006398 . GoogleMaps

Paralectotype Amauronematus viduatinus

RUSSIA – Kamchatka oblast • 1 ♀; same data as for lectotype; NHRS, NHRS-HEVA000006394 GoogleMaps .

Lectotype Amauronematus viduatinus var. apiciscerra , here designated

RUSSIA – Kamchatka oblast • ♀; Klutchi [Klyuchi]; 56.32° N, 160.85° E; R. Malaise leg.; NHRS, NHRS-HEVA000006404 GoogleMaps .

Host plants

Salix phylicifolia and possibly some other Salix spp.

Genetics

COI

Based on 21 specimens, maximum within-species distance is 2.74% and the nearest neighbour, diverging by a minimum of 0%, is Euura nimbus .

Nuclear

Based on 20 specimens, maximum within-species distance is 1.34% (0.88% based on haplotypes of individual females). The nearest neighbour, diverging by a minimum of 0.45%, is Euura nimbus .

Distribution and material examined

Palaearctic. Specimens studied are from Finland, Norway, Russia, and Sweden.