Lasius citrinus

AntWiki: The Ants --- Online
Lasius citrinus
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Formicinae
Tribe: Lasiini
Genus: Lasius
Section: flavus clade
Species group: umbratus
Species: L. citrinus
Binomial name
Lasius citrinus
Emery, 1922

Lasius citrinus casent0281204 p 1 high.jpg

Lasius citrinus casent0281204 d 1 high.jpg

Specimen Labels

Synonyms

This species exhibits temporary social parasitism. Queens found new colonies by infiltrating an established nest of Lasius brunneus (indirect evidence) or possibly Lasius niger (unconfirmed) (de la Mora et al., 2021; Janda et al., 2004; Seifert, 2018), killing the queen and using host workers to care for her initial brood.

At a Glance • Temporary parasite  • Limited invasive  

Identification

Keys including this Species

Distribution

Latitudinal Distribution Pattern

Latitudinal Range: 59.63729° to 40°.

 
North
Temperate
North
Subtropical
Tropical South
Subtropical
South
Temperate

Distribution based on Regional Taxon Lists

Palaearctic Region: Austria, Azerbaijan, Belarus, Belgium, Bulgaria, Croatia, Czechia, Democratic Peoples Republic of Korea, Georgia, Greece, Hungary, Iberian Peninsula, Italy (type locality), Netherlands, Norway, Poland, Russian Federation, Slovakia, Slovenia, Spain, Switzerland.

Distribution based on AntMaps

AntMapLegend.png

Distribution based on AntWeb specimens

Check data from AntWeb

Countries Occupied

Number of countries occupied by this species based on AntWiki Regional Taxon Lists. In general, fewer countries occupied indicates a narrower range, while more countries indicates a more widespread species.
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Estimated Abundance

Relative abundance based on number of AntMaps records per species (this species within the purple bar). Fewer records (to the left) indicates a less abundant/encountered species while more records (to the right) indicates more abundant/encountered species.
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Biology

Association with Other Organisms

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  • This species is a host for the ichneumonid wasp Hybrizon buccatus (a parasitoid) (Quevillon, 2018) (encounter mode primary; direct transmission; transmission outside nest).

Flight Period

X X X X X
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Source: antkeeping.info.

Explore-icon.png Explore: Show all Flight Month data or Search these data. See also a list of all data tables or learn how data is managed.

Castes

Worker

Images from AntWeb

Lasius citrinus casent0281205 h 1 high.jpgLasius citrinus casent0281205 p 1 high.jpgLasius citrinus casent0281205 d 1 high.jpgLasius citrinus casent0281205 l 1 high.jpg
Worker. Specimen code casent0281205. Photographer Estella Ortega, uploaded by California Academy of Sciences. Owned by CAS, San Francisco, CA, USA.
Lasius citrinus casent0905679 h 1 high.jpgLasius citrinus casent0905679 p 1 high.jpgLasius citrinus casent0905679 d 1 high.jpgLasius citrinus casent0905679 l 1 high.jpg
Lectotype of Lasius citrinusWorker. Specimen code casent0905679. Photographer Z. Lieberman, uploaded by California Academy of Sciences. Owned by MSNG, Genoa, Italy.
Lasius citrinus casent0906277 h 1 high.jpgLasius citrinus casent0906277 p 1 high.jpgLasius citrinus casent0906277 d 1 high.jpgLasius citrinus casent0906277 p 2 high.jpgLasius citrinus casent0906277 l 1 high.jpg
Worker. Specimen code casent0906277. Photographer Estella Ortega, uploaded by California Academy of Sciences. Owned by NHMUK, London, UK.

Nomenclature

The following information is derived from Barry Bolton's Online Catalogue of the Ants of the World.

  • affinis. Formica affinis Schenck, 1852: 62 (w.q.m.) GERMANY. [Junior primary homonym of Formica affinis Leach, 1825: 290.] Replacement name: citrinus Emery, 1922b: 12, oldest synonym and hence first available replacement name: Seifert, 1990: 7. Combination in Lasius: Mayr, 1861: 50; in Formicina: Emery, 1916b: 242; in Acanthomyops: Ruzsky, 1925b: 45; in Lasius (Chthonolasius): Ruzsky, 1914a: 61; Emery, 1925b: 233. Junior synonym of bicornis: Smith, F. 1858b: 8. Revived from synonymy: Mayr, 1863; 425. Subspecies of umbratus: Forel, 1874: 47; Mayr, 1886d: 430; Emery, 1925b: 233; Karavaiev, 1936: 214; of bicornis: André, 1882b: 196; Nasonov, 1889: 24; Forel, 1915d: 52; Emery, 1916b: 242. Status as species: Ruzsky, 1902d: 15; Bondroit, 1912: 352; Emery, 1914d: 159; Bondroit, 1918: 31; Stärcke, 1937: 40; Stitz, 1939: 299; Novak & Sadil, 1941: 103. Junior synonym of umbratus: Wilson, 1955a: 150. Revived from synonymy: Collingwood, 1963: 145. Status as species: Collingwood & Yarrow, 1969: 80; Baroni Urbani, 1971c: 209; Kutter, 1977c: 232; Collingwood, 1979: 102; Seifert, 1988: 163; Atanassov & Dlussky, 1992: 248.
  • citrinus. Lasius bicornis var. citrina Emery, 1922b: 12 (w.) ITALY. Combination in L. (Chthonolasius): Emery, 1925b: 232. Junior synonym of umbratus: Wilson, 1955a: 151; of affinis Schenck, and hence first available replacement name for Formica affinis Schenck, 1852: 62 [Junior primary homonym of Formica affinis Leach, 1825: 290.] and raised to species: Seifert, 1990: 7.

Unless otherwise noted the text for the remainder of this section is reported from the publication that includes the original description.

Description

Worker

Borowiec and Salata (2022) - Monomorphic, large, HL 0.992-1.286, HW 0.952-1.246, ML 1.24-1.56. Scape moderately elongate, SL 0.857-1.079. Color. Whole body including appendages pale yellow. Structure and setation. Head slightly longer than wide, sides rounded, occipital margin straight to slightly concave. Eyes small, head length at least 6.2 times the maximum diameter of eye. Whole frontal head covered with moderately long, appressed and moderately dense pubescence and sparse, moderately long to long, erected setae, surface well visible, microsculptured but shiny. Occipital part of head with 8-12 long erected setae. Gena with 0-3 erected setae, underside of head with numerous erected setae. Mesosomal dorsum with several long erected setae, length of the longest seta 0.143. Below propodeal spiracle4-8 short erected setae. Antennal scapi slightly flattened, anterior surface with short appressed and slightly decumbent pubescence and in apical half with suberect hair, posterior surface in apical half with suberect hair. Hind tibiae not flattened, HTmax/CS less than 0.1445, lacking suberect or erected setae on external surface. Ventral surface of femora with 6-8 erected setae, anterior surface of fore coxa with few long erected setae. Pubescence on head and mesosoma and appendages moderately dense and whitish, , on gaster dense, partly covering surface of tergites. Pubescence of clypeus sparse, not covering clypeus surface . Surface of gastral tergites distinctly sculptured , shiny, first gastral tergite on the whole surface with dense, long erected setae. Petiolar scale distinctly narrowed to the apex, upper margin with very deep median emargination. Propodeum in lateral view moderately high, broadly obtuse, metanotal groove deep.

References

References based on Global Ant Biodiversity Informatics

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