Orectognathus antennatus, copyright April Nobile.

Belongs within: Myrmicinae.

Orectognathus is an Australasian genus of ants with long and thin trap-jaw mandibles.

Characters (from Bolton 1983): Eyes laterally placed on head; antennal scrobes absent; antennae five-segmented, second funicular segment the longest except scape; palp formula 5,3.

<==Orectognathus Smith 1854 TB85 [incl. Arnoldidris B83; Orectognathiti]
    |--*O. antennatus Smith 1854 [incl. O. antennatus septentrionalis Forel 1910] TB85
    |--O. alligator Taylor 1980 TB85
    |--O. clarki Brown 1953 TB85
    |--O. coccinatus Taylor 1980 TB85
    |--O. darlingtoni Taylor 1977 TB85
    |--O. elegantulus Taylor 1977 TB85
    |--O. howensis Wheeler 1927 [=O. antennatus howensis] TB85
    |--O. kanangra Taylor 1980 TB85
    |--O. mjobergi Forel 1915 [incl. O. mjobergi unicolor Forel 1915] TB85
    |--O. nanus Taylor 1977 TB85
    |--O. nigriventris Mercovich 1958 TB85
    |--O. parvispinus Taylor 1977 TB85
    |--O. phyllobates Brown 1958 TB85
    |--O. robustus Taylor 1977 TB85
    |--O. rostratus Lowery 1967 TB85
    |--O. sarasini Emery 1914 E14
    |--O. satan Brown 1953 TB85
    |--O. sexspinosus Forel 1915 TB85
    `--O. versicolor Donisthorpe 1940 TB85

*Type species of generic name indicated


[B83] Bolton, B. 1983. The Afrotropical dacetine ants (Formicidae). Bulletin of the British Museum (Natural History): Entomology series 46 (4): 267–416.

[E14] Emery, C. 1914. Les fourmis de la Nouvelle-Cal├ędonie & des ├«les Loyalty. In: Sarasin, F., & J. Roux (eds) Nova Caledonia: Forschungen in Neu-Caledonian und auf den Loyalty-Inseln. A. Zoologie vol. 1 pt 4 pp. 393–436, pl. 12. C. W. Kreidels Verlag: Wiesbaden.

[TB85] Taylor, R. W., & D. R. Brown. 1985. Formicoidea. In: Walton, D. W. (ed.) Zoological Catalogue of Australia vol. 2. Hymenoptera: Formicoidea, Vespoidea and Sphecoidea pp. 1–149. Australian Government Publishing Service: Canberra.

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