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Species: Crematogaster ashmeadi   Mayr, 1886 

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See Also:

Crematogaster ashmeadi matura

Taxonomic History (provided by Barry Bolton, 2017)

Crematogaster ashmeadi Mayr, 1886d PDF: 463 (w.m.) U.S.A. Nearctic. AntCat AntWiki HOL

Taxonomic history

Combination in Crematogaster (Acrocoelia): Emery, 1922c PDF: 141; in Crematogaster (Crematogaster): Buren, 1968b PDF: 92.
Senior synonym of Crematogaster matura: Creighton, 1950a PDF: 206.
See also: Johnson, 1988: 315.


Nearctic Region: Alabama, Arkansas, Florida, Georgia, Louisiana, Mississippi, Missouri, North Carolina, Oklahoma, South Carolina, Tennessee, Texas, Virginia
Neotropical Region: Bahamas

Distribution Notes:

SE, north along the Mississippi to St. Louis


Habitat: Dry-mesic to moist, remnant wooded areas, including those with highly degraded understory and ground layer, but whose old trees are still intact, also thickets and edges of old fields. Nests are in dead wood, often that of living woody plants.

Natural History: C. ashmeadi nests above ground and forages mostly in tree canopies and on lianas, in columns up and down tree trunks and vines to gain access to low vegetation. In Forest Park in St. Louis, the arboreal habitat of this species has allowed it to survive the depredations of Tetramorium tsushimae. Like all Crematogaster, this species feeds heavily on the secretions of extrafloral nectaries and honeydew-excreting hemipterans. Workers may also drink fluids from bird droppings on foliage, carrion and other protein-rich tidbits. Sexuals are reared in early summer.

Specimen Habitat Summary

Found most commonly in these habitats: 2 times found in pine/palmetto flatwoods, 0 times found in Mixed hardwood forest, 3 times found in Suburban with wide-spaced, 1 times found in Hardwoods in lawn, 2 times found in Pinus clausa old growth, 0 times found in Mixed hardwood fores, 0 times found in Sandy beach, 0 times found in Mixed subtropical forest, 0 times found in Tropical Hammock, 1 times found in Pine woodland, ...

Found most commonly in these microhabitats: 1 times ex dead pecan branch on ground, 1 times in dead pine knot, 1 times dead twig pine, 1 times turkey oak woods. Diurnal stray, 1 times sifted leaf litter, 2 times on low vegetation, 1 times in bamboo, 2 times hardwood trees, 1 times under bark of pine, 1 times swampy riparian woodland; diurnal stray, 1 times strays, ...

Collected most commonly using these methods: 12 times search, 16 times Nest in twig above ground, 0 times On tree trunk, 2 times Ex rotten log, 0 times On boardwalk, 2 times Foraging, 0 times on trunk of beech, 0 times Dead branch, 1 times In gall of laurel oak, 0 times Dead pine branch, 1 times in twig, ...

Elevations: collected from 2 - 335 meters, 65 meters average

Type specimens: syntype of Crematogaster ashmeadi: casent0902144, casent0919694; type of Crematogaster ashmeadi: focol1506-1, focol1506-2

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