Neivamyrmex macrodentatus

AntWiki: The Ants --- Online
Neivamyrmex macrodentatus
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Dorylinae
Genus: Neivamyrmex
Species: N. macrodentatus
Binomial name
Neivamyrmex macrodentatus
(Menozzi, 1931)

Neivamyrmex macrodentatus casent0903726 p 1 high.jpg

Neivamyrmex macrodentatus casent0903726 d 1 high.jpg

Specimen Labels

The type specimens of this species are from Apaicán, Volcan Irazú. Borgmeier (1955) examined a second collection by Schmidt from San José. Jack Longino found a column of workers beneath a stone at the edge of a gravel road. The habitat was an open pasture area that had been recently burned. The locality was the San Luis Valley, on the Pacific slope just below Monteverde, at 1050m elevation. The collection was made in the middle of a hot day. The smallest workers of this species were remarkably tiny, about the size of small Solenopsis species previously placed in the subgenus Diplorhoptrum.

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

Identification

Jack Longino:

Posterior face of propodeum straight, not concave, as long or longer than dorsal face; eye completely absent; apex of scape does not exceed middle of face; anteroventral tooth of petiole large and triangular; basal tooth of mandible of major enormous; mesosoma of largest worker less than 1.2 mm long.

Distribution

Latitudinal Distribution Pattern

Latitudinal Range: 10.3346146° to 10.3346146°.

 
North
Temperate
North
Subtropical
Tropical South
Subtropical
South
Temperate

Distribution based on Regional Taxon Lists

Neotropical Region: Costa Rica (type locality), Guatemala.

Distribution based on AntMaps

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Distribution based on AntWeb specimens

Check data from AntWeb

Countries Occupied

Number of countries occupied by this species based on AntWiki Regional Taxon Lists. In general, fewer countries occupied indicates a narrower range, while more countries indicates a more widespread species.
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Estimated Abundance

Relative abundance based on number of AntMaps records per species (this species within the purple bar). Fewer records (to the left) indicates a less abundant/encountered species while more records (to the right) indicates more abundant/encountered species.
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Biology

Baudier et al. (2015) studied thermal tolerances of a variety of army ant workers. Neivamyrmex macrodentatus was one of two army ant species sampled that are strictly subterranean, i.e. both bivouac and raid underground.

Castes

Images from AntWeb

Neivamyrmex macrodentatus jtlc000006511 h 1 high.jpgNeivamyrmex macrodentatus jtlc000006511 p 1 high.jpgNeivamyrmex macrodentatus jtlc000006511 d 1 high.jpgNeivamyrmex macrodentatus jtlc000006511 l 1 high.jpg
Worker. Specimen code jtlc000006511. Photographer Will Ericson, uploaded by California Academy of Sciences. Owned by JTLC.

Nomenclature

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

  • macrodentatus. Eciton (Acamatus) macrodentatus Menozzi, 1931b: 260, fig. 1 (w.) COSTA RICA.
    • Type-material: 5 syntype workers.
    • Type-locality: Costa Rica: Vulcano Irazu, Apaicán (F.I. Tristan).
    • Type-depository: IEUB.
    • Combination in Neivamyrmex: Borgmeier, 1953: 11.
    • Status as species: Borgmeier, 1939: 414; Borgmeier, 1955: 434 (redescription); Kempf, 1972a: 156; Watkins, 1976: 14 (in key); Bolton, 1995b: 289; Branstetter & Sáenz, 2012: 254.
    • Material of the nomen nudum tristani referred here by Borgmeier, 1939: 414.
    • Distribution: Costa Rica, Guatemala.

Description

References

  • Baudier, K. M., A. E. Mudd, S. C. Erickson, and S. O'Donnell. 2015. Microhabitat and body size effects on heat tolerance: implications for responses to climate change (army ants: Formicidae, Ecitoninae). Journal of Animal Ecology. 84:1322-1330. doi:10.1111/1365-2656.12388
  • Borgmeier, T. 1939. Nova contribuiça~o para o conhecimento das formigas neotropicas (Hym. Formicidae). Rev. Entomol. (Rio J.) 10: 403-428 (page 414, material of the nomen nudum tristani referred here.)
  • Borgmeier, T. 1953. Vorarbeiten zu einer Revision der neotropischen Wanderameisen. Stud. Entomol. 2: 1-51 (page 11, Combination in Neivamyrmex)
  • Menozzi, C. 1931b. Contribuzione alla conoscenza del "microgenton" di Costa Rica. III. Hymenoptera - Formicidae. Boll. Lab. Zool. Gen. Agrar. R. Sc. Super. Agric. 25: 259-274 (page 260, fig. 1 worker described)

References based on Global Ant Biodiversity Informatics

  • Longino J. T. L., and M. G. Branstetter. 2018. The truncated bell: an enigmatic but pervasive elevational diversity pattern in Middle American ants. Ecography 41: 1-12.
  • Watkins J. F., II 1976. The identification and distribution of New World army ants (Dorylinae: Formicidae). Waco, Texas: Baylor University Press, 102 pp