Euura jugicola ( Thomson, 1871 )

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 : 133

186 Euura jugicola ( Thomson, 1871)

Figs 207, 431–432

Nematus jugicola Thomson, 1871: 146–147 . Lectotype designated below.

Pteronidea karvoneni Lindqvist, 1969: 237–238 . Synonymy by Hellén (1976).

Diagnosis

Females are most similar to E. hypoxantha : see details under that species. The abdomen of living specimens can be extensively pink, and the mesepisternum is usually (always?) slightly matt. In North America, at least males can have a black pterostigma (yellow to brown in Europe). Penis valves are most similar to E. fuscodorsata and E. parvilabris ( E. bipartita group). Legs and abdomen ventrally are extensively pale in E. jugicola but in E. parvilabris mostly black. Euura fuscodorsata is paler (e.g., mesepisternum pale, whereas black in E. jugicola ) and the males seem to have a smaller subapical tooth of claws than in E. jugicola . In males, hind tarsi and tip of hind tibia from black to pale, in female (always?) largely pale.

Type material examined

Lectotype Nematus jugicola , here designated

SWEDEN – Dalarna • ♀; Dalecarlia alpibus [mountainous part of Dalarna province]; C.H. Boheman leg.; NHRS, NHRS-HEVA000003972 .

Holotype Pteronidea karvoneni

FINLAND – Lapin Lääni • ♀; Kilpisjärvi; 69.04° N, 20.81° E; 2 Jul. 1964; V.J. Karvonen leg.; MZH, http://id.luomus.fi/GL.3504.

Host plants

Salix spp. , including S. glabra Scop. ( Weiffenbach 1975) , S. aurita L., S. myrsinifolia , and S. phylicifolia ( Kangas 1985) .

Genetics

COI

Based on 10 specimens, maximum within-species distance is 4.1% and the nearest neighbours, diverging by a minimum of 5.32%, are Euura connecta and E. semiopaca .

Nuclear

Based on 7 specimens, maximum within-species distance is 0.3% (0.44% based on haplotypes of individual females). The nearest neighbour, diverging by a minimum of 0.98%, is Euura myosotidis .

Distribution and material examined

Holarctic. Specimens studied are from Canada, Finland, Italy, Sweden, and the USA.