About sawflies

Classification

The insect order Hymenoptera is one of the most species rich groups of insects, and is traditionally divided into two suborders: Symphyta and Apocrita. The suborder Apocrita includes the well-known wasps, ants and bees, exemplified by traits like stinging, pollinating and eusociality. Symphyta - the sawflies - is a paraphyleticparaphyletic:
describing a group with members arising from a common ancestor, but not including all of the known descendants of that ancestor
group of 14 extantextant:
in existence; opposite of extinct
families that represents the oldest evolutionary branches of the order. North America is home to genera from 12 of those families.

Below are two cladograms to assist in understanding superfamily and family-level relationships within the Hymenoptera:

phylogenetic relationships of the two suborders and select superfamilies of Hymenoptera
phylogenetic relationships of select families of Symphyta
 

At this time, Sawfly GenUS does not address genera that occur only south of the United States/Mexico border. This list is adapted from Taeger et al. 2010Taeger et al. 2010:
Taeger A, Blank SM, and Liston AD. 2010. World Catalog of Symphyta (Hymenoptera). Zootaxa 2580: 1-1064.
, Prous et al. 2014Prous et al. 2014:
Prous M, Blank SM, Goulet H, Heibo E, Liston A, Malm T, Nyman T, Schmidt S, Smith DR, Varing;rdal H, Viitasaari M, Vikberg V, and Taeger A. 2014. The genera of Nematinae (Hymenoptera, Tenthredinidae). Journal of Hymenoptera Research 40: 1-69. " target="_blank">https://doi.org/10.3897/JHR.40.7442
, Taeger et al. 2018Taeger et al. 2018:
Taeger A, Liston AD, Prous M, Groll EK, Gehroldt T, and Blank SM. 2018. ECatSymmdash;Electronic World Catalog of Symphyta (Insecta, Hymenoptera). Program version 5.0 (19 Dec 2018), data version 40 (23 Sep 2018). Senckenberg Deutsches Entomologisches Institut (SDEI), Muuml;ncheberg. https://sdei.de/ecatsym/ Accessed: 28 Jan 2020.
, and Prous et al. 2019Prous et al. 2019:
Prous M, Liston A, Kramp K, Savina H, Varing;rdal H, and Taeger A. 2019. The West Palaearctic genera of Nematinae (Hymenoptera, Tenthredinidae). ZooKeys 875: 63-127. https://doi.org/10.3897/zookeys.875.35748
and is presented in alphabetical order.

Symphyta genera of North America north of Mexico

 Superfamily Anaxyleoidea
 Family Anaxyelidae
 Subfamily Syntexinae
 Syntexis Rohwer, 1915
 Superfamily Cephoidea
 Family Cephidae
 Subfamily Cephinae
 Caenocephus Konow, 1896
 Calameuta Konow, 1896
 Cephus Latreille, 1803
 Trachelus Jurine, 1807
 Janus Stephens, 1829
 Phylloecus Newman, 1838
 Superfamily Orussoidea
 Family Orussidae
 Subfamily Ophrynopinae
 Kulcania Benson, 1935
 Ophrynon Middlekauff, 1983
 Ophrynopus Konow, 1897
 Subfamily Orussinae
 Orussus Latreille, 1797
 Superfamily Pamphilioidea
 Family Pamphiliidae
 Subfamily Cephalciinae
 Tribe Cephalciini
 Acantholyda Costacosta:
the robust vein on the anterior margin of the wing; vein C
, 1894
 Cephalcia Panzer, 1803
 Subfamily Pamphiliinae
 Tribe Neurotomini
 Neurotoma Konow, 1897
 Tribe Pamphiliini
 Onycholyda Takeuchi, 1938
 Pamphilius Latreille, 1803
 Superfamily Siricoidea
 Family Siricidae
 Subfamily Siricinae
 Sirex Linnaeus, 1760
 Urocerus Geoffroy, 1762
 Xeris Costacosta:
the robust vein on the anterior margin of the wing; vein C
, 1894
 Subfamily Tremecinae
 Eriotremex Benson, 1943
 Tremex Jurine, 1807
 Family Xiphydriidae
 Subfamily Xiphydriinae
 Xiphydria Latreille, 1803
 Superfamily Tenthredinoidea
 Family Argidae
 Subfamily Arginae
 Arge Schrank, 1802
 Subfamily Atomacerinae
 Atomacera Say, 1836
 Subfamily Sterictiphorinae
 Aproceros Malaise, 1931
 Aprosthema Konow, 1899
 Neoptilia Ashmead, 1898
 Ptenos Norton, 1872
 Schizocerella Forsius, 1927
 Sphacophilus Provancher, 1888
 Sterictiphora Billberg, 1820
 Zynzus D.R. Smith, 1992
 Family Cimbicidae
 Subfamily Abiinae
 Abia
Factsheet for:Abia
Glossary:labial palpus:
appendage emerging laterally from the labium
Leach, 1817
 Subfamily Cimbicinae
 Cimbex Olivier, 1791
 Trichiosoma Leach, 1817
 Family Diprionidae
 Subfamily Diprioninae
 Diprion Schrank, 1802
 Gilpinia Benson, 1939
 Neodiprion Rohwer, 1918
 Zadiprion Rohwer, 1918
 Subfamily Monocteninae
 Augomonoctenus Rohwer, 1918
 Monoctenus Dahlbom, 1835
 Family Pergidae
 Subfamily Acordulecerinae
 Acordulecera Say, 1836
 Family Tenthredinidae
 Subfamily Allantinae
 Tribe Allantini
 Allantus Panzer, 1801
 Macremphytus MacGillivray, 1908
 Taxonus Hartig, 1837
 Tribe Empriini
 Allantunicus D.R. Smith, 1997
 Ametastegia Costacosta:
the robust vein on the anterior margin of the wing; vein C
, 1882
 Aphilodyctium Ashmead, 1898
 Empria Lepeletier & Serville, 1828
 Haymatus D.R. Smith, 1979
 Monostegia Costacosta:
the robust vein on the anterior margin of the wing; vein C
, 1859
 Monsoma MacGillivray, 1908
 Phrontosoma MacGillivray, 1908
 Somanica D.R. Smith, 1979
 Tribe Eriocampini
 Dimorphopteryx Ashmead, 1898
 Eriocampa Hartig, 1837
 Pseudosiobla Ashmead, 1898
 Subfamily Blennocampinae
 Tribe Blennocampini
 Apareophora Sato, 1928
 Ardis Konow, 1886
 Claremontia Rohwer, 1909
 Eupareophora Enslin, 1914
 Monardis Enslin, 1914
 Monophadnoides Ashmead, 1898
 Periclista Konow, 1886
 Tribe Lycaotini
 Blennogeneris MacGillivray, 1923
 Lycaota Konow, 1903
 Tribe Phymatocerini
 Ceratulus MacGillivray, 1908
 Eutomostethus Enslin, 1914
 Lagonis Ross, 1937
 Monophadnus Hartig, 1837
 Paracharactus MacGillivray, 1908
 Phymatocera Dahlbom, 1835
 Rhadinoceraea Konow, 1886
 Stethomostus Benson, 1939
 Tribe Tomostethini
 Tethida Ross, 1937
 Tomostethus Konow, 1886
 Tribe Waldheimiini
 Halidamia Benson, 1939
 Waldheimia Brulle, 1846
 Subfamily Heterarthrinae
 Tribe Caliroini
 Caliroa Costacosta:
the robust vein on the anterior margin of the wing; vein C
, 1859
 Endelomyia Ashmead, 1898
 Tribe Fenusini
 Bidigitus D.R. Smith, 1967
 Fenella Westwood, 1839
 Fenusa Leach, 1817
 Fenusella Enslin, 1912
 Metallus Forbes, 1885
 Nefusa Ross, 1951
 Profenusa MacGillivray, 1914
 Prolatus D.R. Smith, 1967
 Scolioneura Konow, 1890
 Setabara Ross, 1951
 Tribe Heterarthrini
 Heterarthrus Stephens, 1835
 Subfamily Nematinae
 Tribe Cladiini
 Cladius Illiger, 1807
 Tribe Nematini
 Adelomos Ross, 1935
 Anoplonyx Marlatt, 1896
 Caulocampus Rohwer, 1912
 Craterocercus Rohwer, 1911
 Euura Newman, 1837
 Fallocampus Wong, 1977
 Hemichroa Stephens, 1835
 Hoplocampa Hartig, 1837
 Nematinus Rohwer, 1911
 Nematus Panzer, 1801
 Pristiphora Latreille, 1810
 Tribe Pseudodineurini
 Kerita Ross, 1937
 Pseudodineura Konow, 1885
 Unplaced in tribe
 Susana Rohwer & Middleton, 1932
 Subfamily Selandriinae
 Tribe Adelestini
 Adelesta Ross, 1937
 Tribe Aneugmenini
 Aneugmenus Hartig, 1837
 Birka Malaise, 1944
 Eustromboceros Rohwer, 1911
 Nesoselandria Rohwer, 1910
 Stromboceridea Rohwer, 1911
 Tribe Dolerini
 Dolerus Panzer, 1801
 Prionourgus Goulet, 1986
 Tribe Heptamelini
 Heptamelus Haliday, 1855
 Tribe Selandriini
 Brachythops Curtis, 1839
 Tribe Strongylogastrini
 Eriocampidea Ashmead, 1898
 Strongylogaster Dahlbom, 1835
 Thrinax Konow, 1885
 Subfamily Tenthredininae
 Tribe Macrophyini
 Deda Gibson, 1980
 Macrophya Dahlbom, 1835
 Pachyprotasis Hartig, 1837
 Tribe Perineurini
 Leucopelmonus MacGillivray, 1916
 Tribe Sciapterygini
 Filacus Smith & Gibson, 1984
 Zaschizonyx Ashmead, 1898
 Tribe Tenthredinini
 Lagium Konow, 1904
 Rhogogaster Konow, 1884
 Tenthredo Linnaeus, 1758
 Tribe Tenthredopsini
 Aglaostigma W.F. Kirby, 1882
 Superfamily Xyeloidea
 Family Xyelidae
 Subfamily Macroxyelinae
 Tribe Macroxyelini
 Macroxyela W.F. Kirby, 1882
 Megaxyela Ashmead, 1898
 Tribe Xyeleciini
 Xyelecia Ross, 1932
 Subfamily Xyelinae
 Tribe Pleroneurini
 Pleroneura Konow, 1897
 Tribe Xyelini
 Xyela Dalman, 1819