Neivamyrmex gibbatus

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Neivamyrmex gibbatus
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Dorylinae
Genus: Neivamyrmex
Species: N. gibbatus
Binomial name
Neivamyrmex gibbatus
Borgmeier, 1953

Neivamyrmex gibbatus casent0178603 profile 1.jpg

Neivamyrmex gibbatus casent0178603 dorsal 1.jpg

Specimen Label

This species is only known from queens and/or workers and has yet to be associated with males.

Photo Gallery

  • Army ants are highly mobile and colonies sometimes cross paths. These encounters rarely escalate beyond the occasional scuffle. Instead, workers form a guard at trail intersections, facing each other one-to-one with their mandibles wide open, a sign of utter alertness. Eciton burchellii (left) vs. Neivamyrmex gibbatus. La Selva Biological Station, Costa Rica. Photo by Daniel Kronauer.

Identification

Jack Longino: Mesonotum distinctly humped; antennal scape surpasses posterior margin of head.

Distribution

Distribution based on Regional Taxon Lists

Neotropical Region: Brazil, Colombia, Costa Rica (type locality), Ecuador, French Guiana, Guyana, Panama, Suriname, Venezuela.


Distribution based on AntMaps

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Distribution based on AntWeb specimens

Check data from AntWeb

Biology

Jack Longino: I have collected this species five times, always as nocturnal columns on the ground surface in wet forest habitats. The four Costa Rican collections are from sea level to 500m elevation; a Venezuelan collection was from 1100m. In one of the Costa Rican raiding columns there was ant prey: Tapinoma, Pheidole and Strumigenys smithii.

On the Barva transect in Costa Rica I saw a column that emerged from dense vegetation onto a trail, moved about 5m along the trail and across a log, and disappeared into dense vegetation on the other side. It was a dense swath of ants, perhaps 5-10cm wide, moving rapidly. I watched the continuously flowing column for several minutes, and it was obvious that the colony was very large. At times the trail seemed to scintillate, and when I looked closely I discovered that I was seeing the sparkle of light reflecting from the wings of hundreds of wasps in the Diapriidae. Lubomir Masner later identified these as a species of Acanthopria. Hundreds at a time were within my field of vision, running with the workers.

Castes


Nomenclature

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

  • gibbatus. Neivamyrmex gibbatus Borgmeier, 1953: 45, fig. 30 (w.q.) COSTA RICA, PANAMA (Barro Colorado I.), GUYANA.
    • Type-material: syntype workers (number not stated), 1 syntype ergatoid queen.
    • Type-locality: Costa Rica: Santa Clara Prov., Hamburgfarm, nos. 5659, 5908 (F. Nevermann), same data but nos. 7, 167, 173, and 178, same data but 31.xii.1937, and 24.i.1938, syntype workers and queen Panama: Canal Zone, Barro Colorado I., i.1948, no. 224 (T.C. Scheirla), Barro Colorado I., 22.xi.1947, no. 131, and 2.xii.1947, no. 134, Guyana (“British Guiana”): Kartabo, 25.vii.1924, no. 1093 (S.C. Crawford), Kartabo, 25.vii.1924 (A.E. Emerson).
    • Type-depositories: MCZC, MZSP, USNM, coll. Schneirla.
    • Status as species: Borgmeier, 1955: 347 (redescription); Kempf, 1968b: 371; Kempf, 1972a: 154; Watkins, 1976: 11 (in key); Bolton, 1995b: 289; Palacio, 1999: 155 (in key).
    • Distribution: Brazil, Costa Rica, Ecuador, Guyana, Panama.

Description

References

  • Borgmeier, T. 1955. Die Wanderameisen der neotropischen Region. Stud. Entomol. 3: 1-720 (page 347, see also)

References based on Global Ant Biodiversity Informatics

  • Baccaro F. B., J. L. P. de Souza, E. Franklin. V. Lemes Landeiro, and W. E. Magnusson. 2012. Limited effects of dominant ants on assemblage species richness in three Amazon forests. Ecological Entomology 37: 1-12.
  • Basset Y., L. Cizek, P. Cuenoud, R. K. Didham, F. Guilhaumon, O. Missa, V. Novotny, F. Odegaards, T. Roslin, J. Schmidl et al. 2012. Arthropod diversity in a tropical forest. Science 338(6113): 1481-1484.
  • Borgmeier T. 1953. Vorarbeiten zu einer Revision der neotropischen Wanderameisen. Studia Entomologica 2: 1-51.
  • Borgmeier T. 1955. Die Wanderameisen der neotropischen Region. Studia Entomologica 3: 1-720.
  • Esteves F. A., C. R. F. Brandao, and L. P. Prado. 2011. The type specimens of Dorylomorph ants (Hymenoptera, Formicidae: Aenictinae, Ecitoninae, Cerapachyinae, Leptanilloidinae) deposited in the Museu de Zoologia da Universidade de Sao Paulo, Brazil. Papeis Avulsos de Zoologia 51(22): 341-397.
  • Fernández, F. and S. Sendoya. 2004. Lista de las hormigas neotropicales. Biota Colombiana Volume 5, Number 1.
  • Franco W., N. Ladino, J. H. C. Delabie, A. Dejean, J. Orivel, M. Fichaux, S. Groc, M. Leponce, and R. M. Feitosa. 2019. First checklist of the ants (Hymenoptera: Formicidae) of French Guiana. Zootaxa 4674(5): 509-543.
  • Kempf W. W. 1968. Miscellaneous studies on Neotropical ants. IV. (Hymenoptera, Formicidae). Studia Entomologica 11: 369-415.
  • Kempf, W.W. 1972. Catalago abreviado das formigas da regiao Neotropical (Hym. Formicidae) Studia Entomologica 15(1-4).
  • Lattke J. E., M. Kaspari, S. O’Donnell, and S. Powell. 2007. Las hormigas ecitoninas de Venezuela (Hymenoptera: Formicidae: Ecitoninae): elenco preliminar. Entomotropica Vol. 22(3): 153-170.