Lasius jensi

Lasius jensi
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. jensi
Binomial name
	Lasius jensi; Seifert, 1982 Specimen labels

In Russia this species is typically found in drier habitats including steppes. Nests have a soil mound (Zryanin & Zryanina, 2007). It is a temporary parasite of Lasius alienus (de la Mora et al., 2021; Janda et al., 2004; Seifert, 2018). It is a rare species in Greece (and vicinity), noted only from Macedonia, Thessaly, Thrace and Peloponnese. Its workers have been collected under stone in a mixed forest (Borowiec & Salata, 2021).

At a Glance

• Temporary parasite

Identification

Keys including this Species

Key to Lasius species of the subgenus Chthonolasius of Greece

Distribution

Latitudinal Distribution Pattern

Latitudinal Range: 51.170159° to 40.4°.


North Temperate	North Subtropical	Tropical	South Subtropical	South Temperate

Source: AntMaps

Distribution based on Regional Taxon Lists

Palaearctic Region: Armenia, Austria, Belgium, Bulgaria, Czech Republic, Democratic Peoples Republic of Korea, Georgia, Germany (type locality), Greece, Hungary, Montenegro, Poland, Russian Federation, Slovenia, Spain.

Distribution based on AntMaps

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.

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.

Biology

Flight Period

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

Source: antkeeping.info.

Check details at Worldwide Ant Nuptial Flights Data, AntNupTracker and AntKeeping.

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

Association with Other Organisms

Explore: Show all Associate data or Search these data. See also a list of all data tables or learn how data is managed.

This species is a host for the ant Lasius fuliginosus (a temporary parasite) (de la Mora et al., 2021; Seifert, 2018) (as Lasius jensi x umbratus).

Castes

Nomenclature

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

jensi. Lasius (Chthonolasius) jensi Seifert, 1982: 85, 21 figs. (w.q.m.) GERMANY.

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, small to moderately large, HL 0.929-1.095, HW 0.873- 1.048, ML 1.11-1.32. Scape moderately elongate, SL 0.817-0.952. 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 7.2 times the maximum diameter of eye. Whole frontal head covered with moderately long, appressed and moderately dense pubescence and dense, long, erected setae, surface well visible, microsculptured but shiny. Occipital part of head with 24-32 long erected setae. Gena and underside of head with numerous and long erected setae. Mesosomal dorsum with several long erected setae, length of the longest seta 0.159. Below propodeal spiracle 6-10 short erected setae. Antennal scapi distinctly flattened, with short appressed and decumbent pubescence and in apical 2/3 length, on both anterior and posterior surface, with erect hair. Hind tibiae moderately broad and moderately flattened, with 18-40 suberect to erected setae on external surface. Ventral surface of femora and tibiae with several erected setae, anterior surface of fore coxa with few long erected setae. Pubescence on the whole body and appendages dense and whitish. Pubescence of clypeus sparse, not covering clypeus surface. Surface of gastral tergites with microsculpture but distinctly shiny, first gastral tergite on the whole surface with dense, moderately long erected setae. Petiolar scale narrowed apically, upper margin bluntly pointed to narrowly rounded, occasionally with narrowly truncate apex. Propodeum in lateral view high, slightly conical with slightly obtuse top, metanotal groove deep.

References

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Borowiec, L., Salata, S. 2022. A monographic review of ants of Greece (Hymenoptera: Formicidae). Vol. 1. Introduction and review of all subfamilies except the subfamily Myrmicinae. Part 1: text. Natural History Monographs of the Upper Silesian Museum 1: 1-297.
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Stukalyuk, S., Radchenko, Y., Gonchar, O., Akhmedov, A., Stelia, V., Reshetov, A., Shymanskyi, A. 2021. Mixed colonies of Lasius umbratus and Lasius fuliginosus (Hymenoptera, Formicidae): when superparasitism may potentially develop into coexistence: a case study in Ukraine and Moldova. Halteres 12, 25–48 (doi:10.5281/zenodo.5753121).
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Zryanin, V.A. and Zryanina, T.A. 2007. Novye dannye o faune murav’ev Srednego Povolzh’ya. Uspekhi Sovremennoj Biologii. 127:226-240. [in Russian]

References based on Global Ant Biodiversity Informatics

Antarea (Personal Communication - Rumsais Blatrix- 27 April 2018)
Antarea (at www.antarea.fr on June 11th 2017)
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