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Species: Pheidole arachnion   Wilson, 2003 

Download Data

Taxonomic History (provided by Barry Bolton, 2020)

Pheidole arachnion Wilson, 2003A: 656, figs. (s.w.) COSTA RICA. Neotropic. AntCat AntWiki HOL

Taxonomic history

Senior synonym of Pheidole iracunda: Longino, 2009 PDF: 13.


  Geographic regions (According to curated Geolocale/Taxon lists):
    Americas: Costa Rica, Nicaragua
  Biogeographic regions (According to curated Bioregion/Taxon lists):

Distribution Notes:

Costa Rica: Atlantic lowlands.


Natural History:

Inhabits lowland rainforest; nests in dead wood on ground.

Taxonomic Treatment (provided by Plazi)

Scientific Name Status Publication Pages ModsID GoogleMaps
Pheidole arachnion   Longino, J. T., 2009, Additions to the taxonomy of New World Pheidole (Hymenoptera: Formicidae)., Zootaxa 2181, pp. 1-90: 13, (download) 13 22820
Pheidole arachnion new species  Wilson, E. O., 2003, Pheidole in the New World. A dominant, hyperdiverse ant genus., Cambridge, MA: Harvard University Press: 656, (download) 656 20017

Specimen Habitat Summary

Found most commonly in these habitats: 33 times found in montane wet forest, 21 times found in mature wet forest, 10 times found in cloud forest, primary, along steep ridge near peak, 11 times found in ridgetop cloud forest, isolated peak with oak trees, 5 times found in wet forest, 10 times found in ridgetop cloud forest, 7 times found in cloud forest, primary, near ridgetop, 7 times found in mature rainforest, edge of forest near pasture and agricultural land, steep rocky terrain, 5 times found in lowland rainforest, 3 times found in tropical wet forest, ...

Found most commonly in these microhabitats: 83 times ex sifted leaf litter, 19 times at bait, 12 times Hojarasca, 5 times sifted litter, 2 times Ex sifted leaf litter., 1 times madera podrida, 1 times ex sifted leaf litter and rotten wood, 1 times cosas suspendidas, 1 times bajo de M/08.

Collected most commonly using these methods: 63 times miniWinkler, 19 times baiting, 13 times maxiWinkler, 15 times Winkler, 10 times Mini Winkler, 1 times Search & Berles, 3 times Berlese, 1 times flight intercept trap, 1 times Unknown.

Elevations: collected from 10 - 1140 meters, 714 meters average

Type specimens: Holotype major worker Pheidole arachnion: mcztype-34144; Holotype major worker Pheidole iracunda: mcztype-34245; paratype Pheidole iracunda: jtlc000016415

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