Every Ant Tells a Story - And Scientists Explain Their Stories Here
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Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Dorylinae
Genus: Cysias
Emery, 1902
Type species
Ooceraea papuana

Cerapachys papuanus casent0434834 profile 1.jpg

Cerapachys papuanus casent0434834 dorsal 1.jpg

Specimen labels

This genus is not in use as it is currently considered to be a junior synonym of Ooceraea.


The following information is derived from Barry Bolton's New General Catalogue, a catalogue of the world's ants.

  • CYSIAS [junior synonym of Ooceraea]
    • Cysias Emery, 1902c: 24 [as subgenus of Cerapachys]. Type-species: Ooceraea papuana, by original designation.
    • Cysias raised to genus: Ashmead, 1905b: 382.
    • Cysias subgenus of Cerapachys: Wheeler, W.M. 1910g: 137.
    • Cysias junior synonym of Syscia: Emery, 1911d: 10.
    • Cysias junior synonym of Cerapachys: Kempf, 1972a: 76; see also Brown, 1975: 19.
    • Cysias junior synonym of Ooceraea: Borowiec, 2016: 191.


  • Ashmead, W. H. 1905c. A skeleton of a new arrangement of the families, subfamilies, tribes and genera of the ants, or the superfamily Formicoidea. Can. Entomol. 37: 381-384 (page 382, Cysias in Ponerinae, Cerapachyini; as genus)
  • Bolton, B. 2003. Synopsis and Classification of Formicidae. Mem. Am. Entomol. Inst. 71: 370pp (page 141, Cysias as junior synonym of Cerapachys)
  • Borowiec, M.L. 2016. Generic revision of the ant subfamily Dorylinae (Hymenoptera, Formicidae). ZooKeys 608: 1–280 (doi: 10.3897/zookeys.608.9427).
  • Brown, W. L., Jr. 1975. Contributions toward a reclassification of the Formicidae. V. Ponerinae, tribes Platythyreini, Cerapachyini, Cylindromyrmecini, Acanthostichini, and Aenictogitini. Search Agric. (Ithaca N. Y.) 5(1 1: 1-115 (page 19, Cysias junior synonym of Cerapachys)
  • Donisthorpe, H. 1943g. A list of the type-species of the genera and subgenera of the Formicidae. [part]. Ann. Mag. Nat. Hist. 11(10): 617-688 (page 637, Cysias as subgenus of Cerapachys)
  • Emery, C. 1902c. Note mirmecologiche. Rend. Sess. R. Accad. Sci. Ist. Bologna (n.s.) 6: 22-34 (page 24, Cysias as subgenus of Cerapachys)
  • Emery, C. 1911e. Hymenoptera. Fam. Formicidae. Subfam. Ponerinae. Genera Insectorum 118: 1-125 (page 10, Cysias as junior synonym of Syscia)
  • Kempf, W. W. 1972b. Catálogo abreviado das formigas da regia~o Neotropical. Stud. Entomol. 15: 3-344 (page 76, Cysias junior synonym of Cerapachys)
  • Wheeler, W. M. 1910b. Ants: their structure, development and behavior. New York: Columbia University Press, xxv + 663 pp. (page 137, Cysias as subgenus of Cerapachys)