Lasius alienus

Lasius alienus, or cornfield ant,[1] is a species of ant in the subfamily Formicinae (family Formicidae). Workers have a length of about 2–4 mm, Queens are larger (7–9 mm).

Lasius alienus
Scientific classification
Kingdom:
Animalia
Phylum:
Arthropoda
Class:
Insecta
Order:
Hymenoptera
Family:
Formicidae
Subfamily:
Formicinae
Genus:
Lasius

Latreille, 1804
Species:
L. alienus
Binomial name
Lasius alienus
Förster, 1850

Distribution

They live in Europe, from Spain to the Caucasus; populations in North America are now considered to be a separate species, Lasius americanus.[2]

Genetics

Genome type Lasius alienus: 0,31 m (C value)[3][4]

Mutualism

The butterfly Plebejus argus lays eggs near nests of the ant L. alienus, forming a mutualistic relationship.[5] This mutualistic relationship benefits the adult butterfly by reducing the need for parental investment.[5] Once the eggs hatch, the ants chaperone the larvae, averting the attacks of predatory organisms like wasps and spiders as well as parasites. In return, the ants receive a saccharine secretion fortified with amino acids from an eversible gland on the larvae’s back.[5] As first instar larvae prepare to pupate, the ants carry the larvae into their nests.[5] Once the larvae become pupae, the ants continue to provide protection against predation and parasitism.[5]

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References
  1. Watschke, Thomas L.; Dernoeden, Peter H.; Shetlar, David J. (2013). Managing Turfgrass Pests, Second Edition. CRC Press. p. 452. ISBN 978-1-4665-5507-5.
  2. Sämi Schär, Gerard Talavera, Xavier Espadaler, Jignasha D. Rana, Anne Andersen Andersen, Stefan P. Cover, Roger Vila (2018) Do Holarctic ant species exist? Trans‐Beringian dispersal and homoplasy in the Formicidae. Journal of Biogeography. doi:10.1111/jbi.13380
  3. Database about the size of the genomes of animals.
  4. Tsutsui, ND, AV Suarez, J.C. Spagna, and J.S. Johnston (2008). The evolution of genome size in ants. BMC Evolutionary Biology 8: 64.
  5. Jordano, D.; Rodríguez, J.; Thomas, C. D.; Haeger, J. Fernández (1992-09-01). "The distribution and density of a lycaenid butterfly in relation to Lasius ants". Oecologia. 91 (3): 439–446. doi:10.1007/bf00317635. ISSN 0029-8549. PMID 28313554.
  • Seifert, B. (1992). A taxonomic revision of the Palaearctic members of the ant subgenus Lasius s. str. (Hymenoptera: Formicidae). Abhand. Be. Naturkundemus. Goerlitz 66 (5): 1-66.
  • Wilson, E. O. (1955). A monographic revision of the ant genus Lasius, Ph.D. dissert., Harvard University, 105 p.


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