''Lasius umbratus'',

colloquially Colloquialism (), also called colloquial language, everyday language or general parlance, is the style (sociolinguistics), linguistic style used for casual (informal) communication. It is the most common functional style of speech, the idiom norm ...

known as the yellow shadow ant and yellow lawn ant, is a

palearctic The Palearctic or Palaearctic is the largest of the eight biogeographic realms of the Earth. It stretches across all of Eurasia north of the foothills of the Himalayas, and North Africa. The realm consists of several bioregions: the Euro-Sibe ...

species of parasitic

ant Ants are eusocial insects of the family Formicidae and, along with the related wasps and bees, belong to the order Hymenoptera. Ants evolved from vespoid wasp ancestors in the Cretaceous period. More than 13,800 of an estimated total of 22 ...

distributed across

Eurasia Eurasia (, ) is the largest continental area on Earth, comprising all of Europe and Asia. Primarily in the Northern and Eastern Hemispheres, it spans from the British Isles and the Iberian Peninsula in the west to the Japanese archipelago a ...

and the Maghreb region of

Africa Africa is the world's second-largest and second-most populous continent, after Asia in both cases. At about 30.3 million km2 (11.7 million square miles) including adjacent islands, it covers 6% of Earth's total surface area ...

. It was once thought that this species occurred in

North America North America is a continent in the Northern Hemisphere and almost entirely within the Western Hemisphere. It is bordered to the north by the Arctic Ocean, to the east by the Atlantic Ocean, to the southeast by South America and the Car ...

as well, but comparative genomic studies indicate the Afro-Eurasian and American populations are discrete and not closely related enough to represent a single species. The North American populations are now treated as a different species, ''Lasius aphidicola''. The

queens Queens is a borough of New York City, coextensive with Queens County, in the U.S. state of New York. Located on Long Island, it is the largest New York City borough by area. It is bordered by the borough of Brooklyn at the western tip of Long ...

of this species seek out a ''Lasius niger''

worker ant Ants are eusocial insects of the family Formicidae and, along with the related wasps and bees, belong to the order Hymenoptera. Ants evolved from vespoid wasp ancestors in the Cretaceous period. More than 13,800 of an estimated total of 22,00 ...

, to first kill in order to gain the worker ant's

scent An odor (American English) or odour (Commonwealth English; see spelling differences) is caused by one or more volatilized chemical compounds that are generally found in low concentrations that humans and animals can perceive via their sense ...

and then to discreetly sneak inside a ''Lasius niger'' nest. Once inside the ''Lasius umbratus'' queen finds the ''Lasius niger'' queen, and kills her. The worker ants will care for the new queen's larvae and slowly the colony will be made up of only ''Lasius umbratus'' individuals. They are sometimes confused with ''

Lasius flavus The yellow meadow ant (''Lasius flavus''), also known as the yellow hill ant, is a species of ant occurring in Europe (where it is one of the most common ants), Asia, and North Africa. Populations in North America are now considered a different, ...

'' (yellow meadow ant) but unlike ''L. flavus'' they forage for food on the surface.

References

External links

* umbratus Slave-making ants Insects described in 1846 Taxa named by William Nylander (botanist) {{formicinae-stub