AntWiki: The Ants --- Online
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Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Myrmicinae
Tribe: Attini
Genus: Zacryptocerus
Wheeler, W.M., 1911
Type species
Cryptocerus clypeatus, now Cephalotes clypeatus

Cephalotes clypeatus casent0010689 profile 1.jpg

Cephalotes clypeatus casent0010689 dorsal 1.jpg

Specimen labels

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


The following information is derived from Barry Bolton's Online Catalogue of the Ants of the World.

  • ZACRYPTOCERUS [junior synonym of Cephalotes]
    • Zacryptocerus Wheeler, W.M. 1911f: 175 (see also footnote). Type-species: Cryptocerus clypeatus, by original designation.
    • [Zacryptocerus Ashmead, 1905b: 384. Nomen nudum. (Based on a non-existent type-species: Cryptocerus multistrigus. Nomen nudum, attributed to Smith, F.).]
    • Zacryptocerus senior synonym of Hypocryptocerus, Paracryptocerus (and its junior synonyms Cyathomyrmex, Cyathocephalus (homonym), Harnedia): Kempf, 1973c: 460.
    • Zacryptocerus junior synonym of Cephalotes: De Andrade & Baroni Urbani, 1999: 59.


  • 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 384, Zacryptocerus, nomen nudum. (Based on a non-existent type-species. Cryptocerus multistrigus, nomen nudum, attributed to Smith, F.))
  • Bolton, B. 2003. Synopsis and Classification of Formicidae. Mem. Am. Entomol. Inst. 71: 370pp (page 195, Zacryptocerus as junior synonym of Cephalotes)
  • De Andrade, M. L.; Baroni Urbani, C. 1999. Diversity and adaptation in the ant genus Cephalotes, past and present. Stuttg. Beitr. Naturk. Ser. B (Geol. Paläontol.) 271: 1-889 (page 59, Zacryptocerus as junior synonym of Cephalotes)
  • Dlussky, G. M.; Fedoseeva, E. B. 1988. Origin and early stages of evolution in ants. Pp. 70-144 in: Ponomarenko, A. G. (ed.) Cretaceous biocenotic crisis and insect evolution. Moskva: Nauka, 232 pp. (page 79, Zacryptocerus in Myrmicinae, Cryptocerini (anachronism))
  • Emery, C. 1924f [1922]. Hymenoptera. Fam. Formicidae. Subfam. Myrmicinae. [concl.]. Genera Insectorum 174C: 207-397 (page 304, Zacryptocerus in Myrmicinae, Cryptocerini)
  • Forel, A. 1917. Cadre synoptique actuel de la faune universelle des fourmis. Bull. Soc. Vaudoise Sci. Nat. 51: 229-253 (page 246, Zacryptocerus in Myrmicinae, Cryptocerini)
  • Kempf, W. W. 1951. A taxonomic study on the ant tribe Cephalotini (Hymenoptera: Formicidae). Rev. Entomol. (Rio J.) 22: 1-244 (page 133, Zacryptocerus in Myrmicinae, Cephalotini)
  • Kempf, W. W. 1973c. A new Zacryptocerus from Brazil, with remarks on the generic classification of the tribe Cephalotini (Hymenoptera: Formicidae). Stud. Entomol. 16: 449-462 (page 460, Zacryptocerus senior synonym of Hypocryptocerus and Paracryptocerus (and its junior synonyms Cyathomyrmex, Cyathocephalus (homonym) and Harnedia).)
  • Wheeler, W. M. 1911g. A list of the type species of the genera and subgenera of Formicidae. Ann. N. Y. Acad. Sci. 21: 157-175 (page 175, Zacryptocerus as genus)
  • Wheeler, W. M. 1922i. Ants of the American Museum Congo expedition. A contribution to the myrmecology of Africa. VII. Keys to the genera and subgenera of ants. Bull. Am. Mus. Nat. Hist. 45: 631-710 (page 665, Zacryptocerus in Myrmicinae, Cryptocerini)