''Strumigenys formosensis'' is a species of

ant Ants are Eusociality, eusocial insects of the Family (biology), family Formicidae and, along with the related wasps and bees, belong to the Taxonomy (biology), order Hymenoptera. Ants evolved from Vespoidea, vespoid wasp ancestors in the Cre ...

endemic Endemism is the state of a species being found only in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also foun ...

Taiwan Taiwan, officially the Republic of China (ROC), is a country in East Asia. The main geography of Taiwan, island of Taiwan, also known as ''Formosa'', lies between the East China Sea, East and South China Seas in the northwestern Pacific Ocea ...

. It is widely distributed within the island at low and middle elevations. It can be distinguished from other ''

Strumigenys ''Strumigenys'' is a genus of ants in the subfamily Myrmicinae. Biology ''Strumigenys'' form small nests in soil, under or between rocks, or in and under logs or under cattle dung. Some species nest in association with other ants such as '' Both ...

'' ants found on Taiwan by the sickle-shaped

mandibles In jawed vertebrates, the mandible (from the Latin ''mandibula'', 'for chewing'), lower jaw, or jawbone is a bone that makes up the lowerand typically more mobilecomponent of the mouth (the upper jaw being known as the maxilla). The jawbone i ...

, clypeus with concave

anterior Standard anatomical terms of location are used to describe unambiguously the anatomy of humans and other animals. The terms, typically derived from Latin or Greek roots, describe something in its standard anatomical position. This position pro ...

margin and numerous short, broad hairs on the head.

References

Myrmicinae Insects described in 1912 Endemic fauna of Taiwan Insects of Taiwan Hymenoptera of Asia {{myrmicinae-stub