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Species: Liometopum occidentale   Emery, 1895 

Download Data

Taxonomic History (provided by Barry Bolton, 2015)

Liometopum microcephalum var. occidentale Emery, 1895d PDF: 330 (w.m.) U.S.A. Nearctic. AntCat AntWiki

Taxonomic history

Wheeler, 1917a PDF: 522 (q.).
Raised to species: Wheeler, 1917a PDF: 521.
See also: Del Toro, et al. 2009: 330.

Taxon Page Images:

Liometopum occidentale velvety tree ant workers tending larvae of the copper butterfly Lycaena xanthoides. The caterpillars produce a substance attractive to the ants, and the ants provide protection from predators and parasites. Kern County, California, USA.
Image © Alex Wild.




Typically associated with deciduous trees (not conifers), often oaks (Quercus spp.).


In the North American fauna, L. occidentale may be recognized by its bicolored pattern, abundantly hairy gastral dorsum, and distribution (see map).

Taxon Page Author History

On 2013-08-20 07:57:13 Zach Lieberman modified Images
On 2013-08-20 07:56:30 Zach Lieberman modified Images
On 2013-08-20 07:56:00 Zach Lieberman modified Biology

Taxonomic Treatment (provided by Plazi)

Specimen Habitat Summary

Found most commonly in these habitats: 34 times found in oak woodland, 38 times found in riparian woodland, 12 times found in valley riparian woodland, 9 times found in chaparral, 8 times found in gully riparian woodland, 4 times found in Pinyon-cedar woodland, 3 times found in Quercus-Pinus-Pseudotsuga, 4 times found in Quercus-Pinus-Pseudotsuga forest, 4 times found in riparian vegetation, 3 times found in disturbed riparian woodland, ...

Collected most commonly using these methods or in the following microhabitats: 25 times tunafish bait, 14 times pitfall trap, 9 times hand collecting, 7 times Bay Area Ant Survey (BAAS), 4 times under rock, 4 times malaise trap, 3 times search, 3 times Winkler sifter, 3 times light trap collecting, 1 times mixed, 1 times on dry wood, ...

Elevations: collected from 2 - 22433 meters, 594 meters average

Type specimens: Lectotype of Liometopum microcephalum occidentale: casent0905042

(-1 examples)

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