Acantholyda is a genus of sawflies. Subgenera The genus is divided into two subgenera: Acantholyda Costa, 1894 Itycorsia Konow, 1897 Species A. aequorea Middlekauff, 1958 – North America (Calif) A. aglaia Zhelochovtsev, 1968 A. aglaia aglaia Zhelochovtsev, 1968 A. aglaia stigma Shinohara, 2001 A. aglaia yezoensis Shinohara & Hara, 2000 A. albomarginata (Cresson, 1880) – North America A. alpina Shinohara, 2000 – Japan A. angulata (MacGillivray, 1912) – North America A. apicalis (Westwood, 1874) – North America A. atrata (Cresson, 1880) – North America A. atripes (Cresson, 1880) – North America A. aurigera Middlekauff, 1958 – North America (Calif) A. birmanica Shinohara, 2005 – Asia A. balanata (MacGillivray, 1923) – North America A. bicolorata (Norton, 1869) – North America A. brunnicans (Norton, 1864) – North America A. brunniceps (Cresson, 1880) – North America A. bucephala (Cresson, 1880) – North America A. burkei Middlekauff, 1958 – North America A. chicoutimiensis (Huard, 1879) – Canada (East) A. circumcincta (Klug, 1808) – North America A. crocinca Middlekauff, 1959 – North America A. depressa Middlekauff, 1958 – North America (AZ) A. dimorpha Maa, 1944 A. erythrocephala (Linnaeus, 1758) – Europe A. flaviventris Shinohara, 1991 A. flaviceps (Retzius, 1783) A. flavomarginata Maa, 1944 A. floridana Greenbaum, 1975 – North America A. hieroglyphica (Christ, 1791) – Northern Eurasia A. intermedia Maa, 1949 A. kojimai Shinohara, 2000 – Japan A. kumamotoi Shinohara, 2000 – Japan A. laricis (Giraud, 1861) – Northern Eurasia A. luteomaculata (Cresson, 1880) – North America A. maculiventris (Norton, 1869) – North America A. marginiventris (Cresson, 1880) – North America A. mexicana Liston, 1996 A. mizunoi Shinohara, 2001 A. nemoralis (Thomson, 1871) = A. posticalis A. nigripes (Cresson, 1880) – North America A. nigrita (Cresson, 1880) – North America A. ochrocera (Norton, 1869) – North America A. parki Shinohara & Byun, 1996 – Korea, Far Eastern Russia A. peiyingaopaoa Xiao, 1963 A. piceacola Xiao & Zhou, 1986 A. pini Rohwer, 1911 – North America A. pinivora Enslin, 1918 = A. posticalis A. pirica Shinohara, 2000 – Japan, Sakhalin A. poppigii (Brischke & Zaddach, 1865) – North America A. posticalis (Matsumura, 1912) – Northern Eurasia A. posticalis koreana Shinohara, 2000 A. posticalis pinivora Enslin, 1918 A. posticalis posticalis (Matsumura, 1912) A. pumilionis (Giraud, 1861) – Alpine Europe †A. ribesalbesensis Peñalver & Arillo, 2002 A. ruficeps (Harrington, 1893) – North America A. runcinata Middlekauff, 1958 – North America A. serbica Vasic, 1962 A. stellata Christ, 1791