UCE Phylogenomics Resolves Major Relationships Among Ectaheteromorph Ants (Hymenoptera: Formicidae: Ectatomminae, Heteroponerinae): A New Classification Author Camacho, G. P. Programa de Pós-Graduação em Entomologia, Departamento de Zoologia, Universidade Federal do Paraná, 82590 - 300, Curitiba, Brazil, gabieco.camacho@gmail.com Author Franco, W. Programa de Pós-Graduação em Entomologia, Departamento de Zoologia, Universidade Federal do Paraná, 82590 - 300, Curitiba, Brazil, Author Branstetter, M. G. U. S. Department of Agriculture, Agricultural Research Service (USDA-ARS), Pollinating Insects Research Unit, Utah State University, 84322, Logan, UT, USA, Author Pie, M. R. Programa de Pós-Graduação em Zoologia, Departamento de Zoologia, Universidade Federal do Paraná, 82590 - 300, Curitiba, Brazil, Author Longino, J. T. Department of Biology, University of Utah, 84112, Salt Lake City, UT, USA, and text Insect Systematics and Diversity 2022 2022-01-25 6 1 1 20 http://dx.doi.org/10.1093/isd/ixab026 journal article 10.1093/isd/ixab026 2399-3421 Tribe Heteroponerini Bolton new combination Diagnosis: Ectatommine ants of small to medium size (head width 0.42–1.61 mm , head length 0.53–1.75 mm ); cephalic dorsum with a longitudinal carina extending from anterior margin of clypeus to posterior margin of head ( Bolton 2003 ); antennal scrobe present ( Bolton 2003 ); eye present; acetabulum of antennal socket apparatus hemispherical ( Keller 2011 ); accessory chamber of antennal socket absent ( Keller 2011 ); labial palp with three or four palpomeres ( Bolton 2003 , Keller 2011 ); promesonotal suture complete and flexible ( Bolton 2003 ); ventral flap on metapleural gland opening absent ( Keller 2011 ); metacoxal cavity closed ( Bolton 2003 ); petiolar sternite articulated with tergite over its entire length ( Bolton 2003 , Keller 2011 ); laterotergites of petiole present. Genera: Acanthoponera , Aulacopone , Boltonia new genus , Heteroponera .