(Pinicolites) Meunier, 1920: Xyela lata D.R. Smith, 1990 in western North America Xyela (Xyela) Brébisson, 1819: 29 species in Eurasia and 20 in North America, but many additional species have not yet been described. Macroxyelinae Macroxyela W.F. Kirby, 1882: Macroxyela aenea (Norton, 1872) und Macroxyela ferruginea (Say, 1824) in eastern and central North America Megaxyela Ashmead, 1898: six species in eastern Eurasia, seven species in North America. Xyelecia Ross, 1932: two species, Xyelecia japonica Togashi, 1972 in Japan and Xyelecia nearctica in Western North America The European species can be identified with help of „The Western Palaearctic Xyelidae“ of Blank (2002), all Eurasian species of Xyela with Blank et al. (2013). The North American Macroxyelinae were revised by Smith & Schiff (1998), the North American species of Xyela by Burdick (1961), the North American species of Pleroneura by Smith et al. (1977), the East Asian species of Megaxyela by Shinohara (1992), the East Asian species of Pleroneura by Shinohara (1995), and the species of Megaxyela of the World by Blank et al. (2017). Extinct taxa The Electronic World Catalog of Symphyta provides a complete account of the valid fossil genera and species, their synonyms and the concerning references to original descriptions. Genus without classification into a subfamily of Xyelidae †Potrerilloxyela Lara, Rasnitsyn & Zavattieri, 2014, 1 fossil species †Archexyelinae †Archexyela Riek, 1955, 2 fossil species †Asioxyela Rasnitsyn, 1964, 4 fossil species †Dinoxyela Rasnitsyn, 1969, 1 fossil species †Euryxyela Rasnitsyn, 1964, 1 fossil species †Ferganoxyela Rasnitsyn, 1969, 2 fossil species †Leioxyela Rasnitsyn, 1969, 5 fossil species †Lithoxyela Rasnitsyn, 1969, 1 fossil species †Madygenius Rasnitsyn, 1969, 2 fossil species †Moltenia Schlüter, 2000, 1 fossil species †Oryctoxyela Rasnitsyn, 1969, 2 fossil species †Triassoxyela Rasnitsyn, 1964, 3 fossil species †Xaxexis Pagliano & Scaramozzino, 1990 [= Euryxyela Hong, 1984], 1 fossil species †Xiphoxyela Rasnitsyn, 1969, 2 fossil species †Xyelinus Rasnitsyn, 1964, 2 fossil species Macroxyelinae Genera without classification into a tribe of Macroxyelinae †Bolboxyela Rasnitsyn, 1990, 1 fossil species †Brachyoxyela Gao, Zhao & Ren, 2011, 2 fossil species †Angaridyelini †Angaridyela Rasnitsyn, 1966, 8 fossil species †Baissoxyela Rasnitsyn, 1969, 1 fossil species †Ceratoxyela J. Zhang & X. Zhang, 2000, 1 fossil species †Lethoxyela J. Zhang & X. Zhang, 2000, 2 fossil species †Liaoxyela J. Zhang & X. Zhang, 2000, 1 fossil species †Nigrimonticola Rasnitsyn, 1966, 1 fossil species †Ophthalmoxyela Rasnitsyn, 1966, 1 fossil species †Ceroxyelini †Ceroxyela Rasnitsyn, 1966, 1 fossil species †Isoxyela J. Zhang & X.