Monomorium bidentatum is a species of ant in the subfamily Myrmicinae. It is endemic to Chile and Argentina.
Workers are around 3.5 mm long. The general color is dark brown, with the mandibles, antennae and legs slightly lighter. Females are almost 4.5 mm long, but otherwise very similar to workers.
is found in Chile
. It was first described from Valdivia, Chile
The genus Antichthonidris
contained only two species, A. bidentata
and A. denticulata
. Both species were originally described by Gustav Mayr
under genus Monomorium
. However, Antichthonidris
was synonimized with Monomorium
in 2001, so that this genus is no longer valid, and the two species are again known under their original name.
- (1887): Südamerikanische Formiciden. Verhandlungen der k.k. Zoologisch-Botanischen Gesellschaft in Wien 37: 511-632. PDF
- Social Insects Specialist Group 1996. Antichthonidris bidentatus 2006 IUCN Red List of Threatened Species. Downloaded on 31 July 2007.
- (2007): Two new South American species of Monomorium Mayr with taxonomic notes on the genus. In: Snelling, R. R., B. L. Fisher, and P. S. Ward (eds). Advances in ant systematics (Hymenoptera: Formicidae): homage to E. O. Wilson – 50 years of contributions. Memoirs of the American Entomological Institute 80: 128-145. PDF