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Biology

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Natural History:

Brown and Wilson (1959) summarize the genus as follows: "Widespread in tropics and warm temperate areas. Primarily forest-dwelling; some species occur in grassland and arid scrub. ... Nests mostly in soil and rotting wood; a few species live in arboreal plant cavities in tropical rain forest. Foraging hypogaeic to epigaeic-arboreal. Food: most species are collembolan feeders; a few are polyphagous predators or occasionally feed on sugary substances..."

Members of the genus are all predaceous, with a kinetic mode of attack (Bolton 1999).

The feeding habits of louisianae have been studied by Wilson (1950, 1954) and Brown (1962). Workers take live prey, mostly small arthropods in litter and soil. Preferred prey are entomobryoid and symphypleonan Collembola; poduroid collembolans are not taken.

The species prefers synanthropic and/or seasonally dry habitats. It is more abundant in the peripheral parts of its range (Costa Rica northward, southern Brazil southward) than in the center (Panama southward to Amazonian Brazil) (Brown 1961).

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Distribution Notes

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Throughout tropical and subtropical America, from the southern United States to Argentina. In Costa Rica, known from Atlantic and Pacific lowlands, and the Meseta Central.

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Taxonomic History

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Strumigenys louisianae Roger, 1863a PDF: 211 (w.) U.S.A. Nearctic. AntCat AntWiki HOL

Taxonomic history

Emery, 1895d PDF: 326 (q.); Haug, 1932 PDF: 170 (m.); Wheeler & Wheeler, 1955a PDF: 136 (l.).Senior synonym of Strumigenys unispinulosa: Emery, 1895d PDF: 326; Brown, 1953g PDF: 28.Senior synonym of Strumigenys louisianae laticephala: Smith, 1951c PDF: 826; Brown, 1953g PDF: 28.Senior synonym of Strumigenys bruchi: Brown, 1953g PDF: 28.Senior synonym of Strumigenys louisianae costaricensis: Brown, 1953g PDF: 28.Senior synonym of Strumigenys eggersi cubaensis: Brown, 1953g PDF: 28.Senior synonym of Strumigenys louisianae guatemalensis: Brown, 1953g PDF: 28.Senior synonym of Strumigenys unispinulosa longicornis: Brown, 1953g PDF: 28.Senior synonym of Strumigenys louisianae obscuriventris: Brown, 1953g PDF: 28.Senior synonym of Strumigenys louisianae soledadensis: Brown, 1953g PDF: 28.Senior synonym of Strumigenys clasmospongia: Brown, 1961a PDF: 64.Senior synonym of Strumigenys fusca: Brown, 1961a PDF: 64.Senior synonym of Strumigenys unidentata: Brown, 1961a PDF: 64.Senior synonym of Strumigenys producta: Bolton, 2000: 524.Senior synonym of Strumigenys wani: Bolton et al., 2008 PDF: 62.See also: Wilson, 1954a PDF: 481; Bolton, 2000: 525.
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AntWeb. Version 8.45.1. California Academy of Science, online at https://www.antweb.org. Accessed 15 December 2022.
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Distribution

provided by Catalog of Hymenoptera in America North of Mexico
N. C. to Fla., w. to Okla., Ariz.; Mexico s. to Bolivia, Argentina.
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bibliographic citation
Catalog of Hymenoptera in America North of Mexico. 1979. Prepared cooperatively by specialists on the various groups of Hymenoptera under the direction of Karl V. Krombein and Paul D. Hurd, Jr., Smithsonian Institution, and David R. Smith and B. D. Burks, Systematic Entomology Laboratory, Insect Identification and Beneficial Insect Introduction Institute. Science and Education Administration, United States Department of Agriculture.

General Ecology

provided by Catalog of Hymenoptera in America North of Mexico
The small colonies are beneath objects, in rotting wood, plant cavities; food consists of small arthropods, especially Collembola.
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bibliographic citation
Catalog of Hymenoptera in America North of Mexico. 1979. Prepared cooperatively by specialists on the various groups of Hymenoptera under the direction of Karl V. Krombein and Paul D. Hurd, Jr., Smithsonian Institution, and David R. Smith and B. D. Burks, Systematic Entomology Laboratory, Insect Identification and Beneficial Insect Introduction Institute. Science and Education Administration, United States Department of Agriculture.

Distribution

provided by Catalog of Hymenoptera in America North of Mexico
N. C. to Fla., w. to Okla., Ariz.; Mexico s. to Bolivia, Argentina.
license
cc-by-nc
bibliographic citation
Catalog of Hymenoptera in America North of Mexico. 1979. Prepared cooperatively by specialists on the various groups of Hymenoptera under the direction of Karl V. Krombein and Paul D. Hurd, Jr., Smithsonian Institution, and David R. Smith and B. D. Burks, Systematic Entomology Laboratory, Insect Identification and Beneficial Insect Introduction Institute. Science and Education Administration, United States Department of Agriculture.

General Ecology

provided by Catalog of Hymenoptera in America North of Mexico
The small colonies are beneath objects, in rotting wood, plant cavities; food consists of small arthropods, especially Collembola.
license
cc-by-nc
bibliographic citation
Catalog of Hymenoptera in America North of Mexico. 1979. Prepared cooperatively by specialists on the various groups of Hymenoptera under the direction of Karl V. Krombein and Paul D. Hurd, Jr., Smithsonian Institution, and David R. Smith and B. D. Burks, Systematic Entomology Laboratory, Insect Identification and Beneficial Insect Introduction Institute. Science and Education Administration, United States Department of Agriculture.

Diagnostic Description

provided by Plazi (legacy text)

Alto Paraná , Canindeyú , Central, Concepción , Itapúa , Paraguarí (ALWC, BMNH, MHNG). Literature records: Alto Paraná , Canindeyú , Central, Concepción , Itapúa , Paraguarí (Bolton 2000, Fowler 1981).

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bibliographic citation
Wild, A. L., 2007, A catalogue of the ants of Paraguay (Hymenoptera: Formicidae)., Zootaxa, pp. 1-55, vol. 1622
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Wild, A. L.
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Diagnostic Description

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[[ worker ]] 2.5 Millirn. lang, Gundlachi bis auf die verschiedenen Mandibeln sehr aehnlich, rostroth, matt, fingerhutartig punktirt, aber minder scharf als bei jener Art. Der Kopf ist reichlicher, der Koerper sparsamer (bei reinen Exemplaren wahrscheinlich das ganze Thierchen) mit ziemlich dicken, weisslichen, kaum glaenzenden Schuppen zerstreut besetzt; andere Stuecke zeigen abstehende, an der Spitze gekruemmte und keulenfoermige Boerstchen (die, angeklebt, die erwaehnten Schuppen zu bilden scheinen). Die Mandibeln haben einige Aehnlichkeit mit denen von Odontomach. haematodes , sind platt, schmal, etwas kuerzer als bei Gundlachi , an der Basis und Spitze einander gleich nahe, ohne jedoch sich am Innenrande zu beruehren, und an der Spitze rechtwinklig umgebogen; diese ist gabelfoermig gespalten mit 2 spitzigen Zaehnen. Der Thorax ist wie der Kopf punktirt, sonst aber, wie alles Uebrige auch, der P. Gundlachi gleich, nur ist der Kopf hinten deutlich breiter, als bei letzterer Art. Das Abdomen ist hinten oefter schwaerzlich, etwas glaenzend, sehr undeutlich gerunzelt, hat aber an der Basis deutliche kurze Laengsrunzeln. Louisiana, einige [[ worker ]].

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Roger, J., 1863, Die neu aufgeführten Gattungen und Arten meines Formiciden-Verzeichnisses, nebst Ergänzung einiger früher gegeben Beschreibungen., Berliner Entomologische Zeitschrift, pp. 131-214, vol. 7
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Roger, J.
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Strumigenys louisianae

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Strumigenys louisianae is a species of higher myrmicine in the family Formicidae.[1][2][3][4][5]

Strumigenys louisianae casent0003321 profile 1.jpg

References

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Strumigenys louisianae: Brief Summary

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Strumigenys louisianae is a species of higher myrmicine in the family Formicidae.

Strumigenys louisianae casent0003321 profile 1.jpg
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