UCE Phylogenomics Resolves Major Relationships Among Ectaheteromorph Ants (Hymenoptera: Formicidae: Ectatomminae, Heteroponerinae): A New Classification For the Subfamilies and the Description of a New Genus Author Camacho, G P Author Franco, W Author Branstetter, M G Author Pie, M R Author Longino, J T Author Schultz, T R Author Feitosa, R M text Insect Systematics and Diversity 2022 2022-01-25 6 1 6 6 http://dx.doi.org/10.1093/isd/ixab026 journal article 2397 10.1093/isd/ixab026 da1d1051-df99-40e6-a7ff-e5804b4c13b4 5907609 55B5ECCD-6C6E-4721-B094-ADDC2275CEE6 Ectatomminae Emery = Heteroponerinae Bolton new synonym Diagnosis: Presenting the characters of ‘poneromorph’ subfamilies described by Bolton (2003 : p.40). Clypeus broadly inserted between frontal lobes ( Bolton 2003 ); anterior clypeal margin with a narrow lamellar apron ( Bolton 2003 ). Torulus not completely fused to frontal lobe ( Bolton 2003 ). Antenna with 12 segments ( Bolton 2003 ). Pronotum with the humeral corners angled, forming a distinct delimitation between the anterior and lateral margins ( Lattke 2004 ). Antero-ventral angle of pronotum triangular ( Feitosa 2015 ). Pretarsus without arolium ( Lattke 2004 ). Petiole pedunculate ( Keller 2011 ). Petiolar node as wide or wider than long ( Feitosa 2015 ). Subpetiolar process very well developed, occupying more than onethird of the ventral portion of the petiolar sternite ( Feitosa 2015 ). Helcium projecting from about midheight of the anterior face of abdominal segment III. Abdominal segment IV presclerites separated from the rest of segment by a constriction or slight thickening ( Lattke 1994 ). Fourth abdominal tergite arched and larger than the sternite, giving the segment a curved appearance ( Keller 2011 ). Tribes: Ectatommini and Heteroponerini Incertae sedis : † Canapone , † Electroponera , † Pseudectatomma . Notes: In spite of the reciprocal monophyly of the subfamilies Ectatomminae and Heteroponerinae , the morphological evidence strongly suggests that all ectaheteromorph genera could be combined into a single subfamily Ectatomminae , which is the oldest available name. Ectatomminae , as defined here, presents a combination of 10 diagnostic characters that can be used to differentiate those ants from any other ant subfamily, making the identification of those groups more accessible.