Euura pravus

160 Euura pravus (Konow, 1895) Figs 154, 389 Amauronematus pravus Konow, 1895: 176–177. Lectotype designated by Muche (1975). Amauronematus torneensis Malaise, 1921b: 123–124. Lectotype designated below. Syn. nov. Diagnosis A rather large species (females 6.5–8.0 mm, males 6.0–7.0 mm) whose females are usually extensively pale. The serrulae of the lancet are most similar to E. flavescens, but a pale area on the dorsobasal part (next to the suture) of the basalmost annulus is missing in E. pravus. Externally rather similar to E. renei, but the median mesoscutal lobe has a large triangular black fleck (pale in E. renei) and antennae are black in E. pravus (ventrally pale in E. renei). Female 6.5–8.0 mm. Head extensively to mostly pale; labrum, clypeus and supraclypeal area pale; flagellum black; thorax dorsally black to extensively pale, ventrally extensively or nearly completely pale; pterostigma uniformly pale or with dark margins; abdomen dorsally mostly black, ventrally mostly black to completely pale; metafemur and metatibia pale; hind tarsus black or brown; mesepisternum distinctly or slightly matt; claws bifid; valvula 3 rather truncate in lateral view (as in E. brevivalvis). Male 6.0–7.0 mm. Head extensively pale around eyes to nearly completely black; labrum pale; clypeus slightly or extensively pale; supraclypeal area black or pale; thorax black; pronotum and tegula black to extensively pale; pterostigma pale with dark margins; metafemur extensively black to completely pale; metatibia pale; hind tarsus black or brown; abdomen dorsally nearly completely black, ventrally black or slightly pale; sternum 9 pale; mesepisternum distinctly or slightly matt; claws bifid; apical projection of tergum 8 small, about as broad as long or broader than long. Type material examined Lectotype Amauronematus pravus ESTONIA • ♀; Dorpat [Tartu]; 58.372° N, 26.721° E; SDEI, GBIF-GISHym3866. Lectotype Amauronematus torneensis, here designated SWEDEN – Torne Lappmark • ♀; Torneträsk; 68.22° N, 19.74° E; 400 m a.s.l.; R. Malaise leg.; NHRS, NHRS-HEVA000003944. Host plants Betula pubescens (Tenow 1963), B. nana (Vikberg 1982). Genetics COI Based on 7 specimens, maximum within-species distance is 0.16% and the nearest neighbour, diverging by a minimum of 1.67%, is Euura flavescens. Nuclear Based on 5 specimens, maximum within-species distance is 0.12% (0.08% based on haplotypes of individual females). The nearest neighbour, diverging by a minimum of 1.06%, is Euura lienterica. Distribution and material examined Holarctic. Specimens studied are from Canada (only genetics), Estonia, Finland, Norway, and Sweden.