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Species: Thaumatomyrmex atrox   Weber, 1939 

Classification:
Download Data

Taxonomic History (provided by Barry Bolton, 2019)

Thaumatomyrmex atrox Weber, 1939a PDF: 98, fig. 3 (w.) GUYANA. Neotropic. AntCat AntWiki HOL

Taxonomic history

See also: Kempf, 1975b PDF: 122; Brandão et al., 1991: 339.

Distribution:

  Geographic regions (According to curated Geolocale/Taxon lists):
    Americas: Brazil, Colombia, Costa Rica, Guyana, Panama, Peru, Venezuela
  Biogeographic regions (According to curated Bioregion/Taxon lists):
    Neotropical

Distribution Notes:

Costa Rica, Panama, Guyana (type locality), Trinidad, Colombia, Peru, Bolivia (Kempf 1975, Longino 1988). Costa Rica: La Selva Biological Station.

Biology:

Natural History:

In Costa Rica, this species is known from a single specimen, from La Selva Biological Station (SSE 700), in a berlese sample of litter and soil from the forest floor. A Brazilian species, Thaumatomyrmex mutilatus, is a specialist predator of polyxenid millipedes (Brandao et al. 1991), and thus atrox may be as well.

References:

Brandao, C. R. F., J. L. M. Diniz, and E. M. Tomotake. 1991. Thaumatomyrmex strips millipedes for prey, a novel predatory behaviour in ants and the first case of sympatry in the genus. Insectes Soc. 38:335-344.

Kempf, W. W. 1975. A revision of the Neotropical ponerine ant genus Thaumatomyrmex Mayr (Hymenoptera: Formicidae). Stud. Entomol. 18:95-126.

Longino, J. T. 1988. Notes on the taxonomy of the neotropical ant genus Thaumatomyrmex Mayr (Hymenoptera: Formicidae). In J. C. Trager (ed.), Advances in Myrmecology, pp. 35-42. E. J. Brill, New York.

Weber, N. A. 1939. New ants of rare genera and a new genus of ponerine ants. Ann. Entomol. Soc. Am. 32:91-104.

Specimen Habitat Summary

Found most commonly in these habitats: 6 times found in ridgetop cloud forest, isolated peak with oak trees, 3 times found in montane wet forest, along ridge leading to stream, oak trees present, probably mature or old 2nd growth with relict trees, near pasture, 2 times found in montane wet forest, 2 times found in mature wet forest, 1 times found in montane wet forest, along ridge leading to stream, oak trees, near pasture, 1 times found in montane wet forest, patch at road edge surrounding a small stream, other side of stream with more contiguous forest, less disturbed, possibly mature, 1 times found in montane wet forest, small patch at edge of road, probably 2ndary, Vachelia with Pseudomryemx ants presnt in understory, 1 times found in Narrow strip of riparian forest, surrounded by steep pastures, 1 times found in 1� forest, 1 times found in rainforest, ...

Found most commonly in these microhabitats: 19 times ex sifted leaf litter, 2 times leaf litter and small twigs nest collected, 1 times leaf litter on mangrove islands, 1 times leaf litter, 1 times Ex horjarasca, 1 times Ex hojarasca.

Collected most commonly using these methods: 12 times miniWinkler, 6 times maxiWinkler, 2 times ex berlese funnel, 1 times Winkler, 1 times Berlese, 1 times litter sample.

Elevations: collected from 50 - 1100 meters, 648 meters average

Type specimens:



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