Lasius koreanus

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Lasius koreanus
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Formicinae
Tribe: Lasiini
Genus: Lasius
Species: L. koreanus
Binomial name
Lasius koreanus
Seifert, 1992

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Specimen Labels

The only natural history information known about L. koreanus is that alates were collected between 6 and 23 August.

Identification

Seifert (2020) – The combination of small size, short scape, large eyes and particular microsculpture, L. koreanus should not be confused with any other species.

Keys including this Species

Distribution

Distribution based on Regional Taxon Lists

Palaearctic Region: Democratic Peoples Republic of Korea, Republic of Korea (type locality), Russian Federation.

Distribution based on AntMaps

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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

Castes

Nomenclature

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

  • koreanus. Lasius (Lasius) koreanus Seifert, 1992b: 47, fig. 39 (w.q.) KOREA.

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

Description

Worker

Small size (CS 819 µm). Head moderately elongated and scape shorter than in other East Asian species (CL/ CW900 1.085, SL/CS900 0.956). Postocular distance rather small and eye rather large (PoOc/CL900 0.236, EYE/ CS900 0.252). Torulo-clypeal distance small (dClAn900 4.38). Terminal segment of maxillary palp long (MP6/ CS900 0.201). Pubescence on clypeus moderately dense (sqPDCL900 4.57); frontal pubescence rather short (PLF900 27.0). Gular and pronotal setae of medium length (GuHL/ CS900 0.103, PnHL/CS900 0.137); overall setae numbers rather low (nOcc900 11.9, nGen900 1.1, nGu900 4.9, nSc900 2.6, nHT900 13.0, nSt900 4.8). Microsculpture on head and mesosoma more strongly developed than in other species. Microsculpture between the frontal carinae rather deep, with the margins of meshes developed as elevated ridges and their inner part developed as a rather deep foveola which centrally carries the base of a pubescence hair; short fragments of microcarinulae are irregularly dispersed over the surface. Lateral metapleuron and lower lateral propodeum densely longitudinally carinulate. Coloration: variable; head brown to dark reddish brown, mesosoma medium brown to light reddish brown, gaster varying between dark reddish brown and blackish brown.

See table 10 in Seifert 2020 for additional morphometrics. The abbreviations shown above with the quantitative data are defined here: Seifert 2020 Lasius characters.

Type Material

Holotype worker labelled ”Korea, Kaesong, Mts. Pakyon, 20 km NE from Kaesong, 30. Sept. 1971.“, ”No 254, leg. S. Horvatovich et J. Papp“; 5 paratype workers on separate pins labelled ”North Korea Paekdusan 1.-18.8. 1989 Kozánek lgt.“; depository Staatliches Museum für Naturkunde Görlitz.

References

References based on Global Ant Biodiversity Informatics

  • Guénard B., and R. R. Dunn. 2012. A checklist of the ants of China. Zootaxa 3558: 1-77.
  • Lelej A. S. 2012. Annotated catalogue of the Insects of Russian Far East. Volume 1. Hymenoptera. Dalnauka: Vladivostok. 635 p.
  • Radchenko, A. 2005. Monographic revision of the ants (Hymenoptera: Formicidae) of North Korea. Annales Zoologici (Warsaw) 55: 127-221.
  • Radchenko, A. 2005. Monographic revision of the ants (Hymenoptera, Formicidae) of North Korea. Annales Zoologici 55(2): 127-221.
  • Seifert B. 1992. A taxonomic revision of the Palaearctic members of the ant subgenus Lasius s.str. (Hymenoptera: Formicidae). Abhandlungen und Berichte des Naturkundemuseums Görlitz 66(5): 1-67.