Euura fuscodorsata Prous & Liston & Monckton & Kramp & Vårdal & Vikberg & Heibo & Mutanen 2025

112 Euura fuscodorsata (Lindqvist, 1949) comb. nov. Figs 118, 362 Pteronidea fuscodorsata Lindqvist, 1949: 73–74. Pachynematus albiventris Lindqvist, 1959b: 70. Syn. nov. Diagnosis Externally most similar to E. poppii and E. fuscomaculata, but the saw fits best with E. scotonota, which has 16–17 serrulae (12–15(?) in E. fuscodorsata) and largely black head (pale around eyes and pale supraclypeal area in E. fuscodorsata). The claws of E. fuscodorsata are not clearly bifid as in most other Euura (including E. poppii and E. fuscomaculata) but have a small or large subapical tooth. We have studied only three females. Characteristic for the species may be pale sterna in combination with black downturned parts of abdominal terga, although this colour pattern does occasionally occur in some other species as well, like E. poppii and E. fuscomaculata. Type material examined Holotype Pteronidea fuscodorsata FINLAND – Inari • ♀; Ivalo; 68.65° N, 27.55° E; H. Lindberg leg.; 29 May 1929; MZH, http://id.luomus.fi/GL.3542. Notes 15 serrulae? Holotype Pachynematus albiventris NORWAY – Finnmark • ♀; Tana Bru; 70.20° N, 28.17° E; H. Andersson leg.; 8 Jul. 1956; MZLU, MZLU-HYM0031489. Notes 12–13 serrulae. Host plants Unknown. Genetics COI Based on 2 specimens, maximum within-species distance is 2.13% and the nearest neighbour, diverging by a minimum of 2.74%, is Euura monticola. Nuclear Based on 2 specimens, maximum within-species distance is 0.01% (0.01% based on haplotypes of individual females). The nearest neighbour, diverging by a minimum of 1.29%, is Euura bipartita. Distribution and material examined Palaearctic. Specimens studied are from Finland, and Norway.