''Liometopum scudderi'' is an

extinct Extinction is the termination of a kind of organism or of a group of kinds (taxon), usually a species. The moment of extinction is generally considered to be the death of the last individual of the species, although the capacity to breed and ...

species of ant in the genus ''

Liometopum ''Liometopum'' is a genus of ants that belongs to the subfamily Dolichoderinae, found in North America, Europe and Asia. Caterpillars of certain butterfly species have a symbiotic relationship with ''Liometopum'' ants. They produce secretions t ...

''. Described by Carpenter in 1930, the fossils of this species are only exclusive to the

United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country primarily located in North America. It consists of 50 states, a federal district, five major unincorporated territorie ...

.Carpenter, F. M. 1930. The fossil ants of North America. ''Bull. Mus. Comp. Zool''. 70: 1-66 (page 8 '
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'')

References

† Fossil taxa described in 1930 † Fossil ant taxa {{Dolichoderinae-stub