Euura leucopyga

119 Euura leucopyga (Lindqvist, 1949) Figs 110–111, 351 Amauronematus leucopyga Lindqvist, 1949: 69–70. Holotype ♀, paratypes ♀ ♂. Type specimens not found in MZH. Type locality: Finland. Pteronidea bipicta Lindqvist, 1959c: 56. Synonymy by Lindqvist (1967b). Amauronematus crassiserra Lindqvist, 1960a: 129. Syn. nov. Diagnosis Euura leucopyga is most similar to E. connecta: see differences mentioned under that species. Head shape can be similar to “ Amauronematus ”. Valvula 3 can sometimes be rather broad and square-shaped in dorsal view and with a small invagination posteriorly (crassiserra) similar to some Euura polaris specimens, but lancets of these species are distinguishable (see under Euura polaris). Female Head extensively or slightly pale around eyes; labrum and clypeus pale; supraclypeal area black or pale (usually); thorax black; pronotum and tegula pale; pterostigma pale; metafemur and metatibia pale; hind tarsus pale or brown; abdomen dorsally nearly completely black, ventrally mostly black to mostly pale. Male Head extensively pale around eyes to nearly completely black; labrum pale; clypeus pale or black; supraclypeal area black (usually?); thorax black; pronotum and tegula pale; pterostigma pale; metafemur pale or basally black; metatibia pale or laterally black; hind tarsus pale or brown; abdomen dorsally nearly completely black, ventrally mostly black to mostly pale; sternum 9 pale. Type material examined Holotype Pteronidea bipicta FINLAND – Central Finland • ♀; Pihtipudas; 63.36° N, 25.55° E; 8–9 Jun. 1946; E. Lindqvist leg.; MZH, http://id.luomus.fi/GL.3569. Notes Best morphological match: DEI-GISHym21390. Holotype Amauronematus crassiserra FINLAND – Lapin Lääni • ♀; Kilpisjärvi; 69.04° N, 20.81° E; 20 Apr. 1954 [ex larva rearing emergence date]; E. Lindqvist leg.; MZH, http://id.luomus.fi/GL.2525. Notes COI sequence (275 bp) of the holotype is identical to E. connecta, most specimens of E. leucopyga, and some specimens of E. parviserrata and E. sordidiapex. Host plants Salix spp. Genetics COI Based on 25 specimens, maximum within-species distance is 3.95% and the nearest neighbours, diverging by a minimum of 0%, are Euura parviserrata and Euura sordidiapex. Nuclear Based on 21 specimens, maximum within-species distance is 0.83% (0.78% based on haplotypes of individual females). The nearest neighbour, diverging by a minimum of 0.25%, is Euura connecta. Distribution and material examined Palaearctic. Specimens studied are from Finland, Norway, Russia, and Sweden.