Formiciinae is an extinct subfamily of ants known from Eocene deposits in Europe and North America.
Genera
- Formiciinae <small>Lutz, 1986</small>
- Formiciini <small>Lutz, 1986</small>
- Titanomyrma <small>Archibald, et al., 2011</small>
- Titanomyrma gigantea <small>(Lutz, 1986)</small>
- Titanomyrma lubei <small>Archibald, et al., 2011</small>
- Titanomyrma simillima <small>(Lutz, 1986)</small>
- Formicium <small>Westwood, 1854</small> (collective group genus)
- Formicium berryi <small>(Carpenter, 1929)</small>
- Formicium brodiei <small>Westwood, 1854</small>
- Formicium mirabile <small>(Cockerell, 1920)</small>
The type genus is Formicium with the genus Titanomyrma being described in 2011. Formicium includes the described species which are known from fossil wings only. Formicium is known from three species. Formicium mirabile, named by Theodore D. A. Cockerell in 1920, and Formicium brodiei, named by John O. Westwood in 1854, are both known from fore wings found in the middle Eocene of Bournemouth, Dorset, England.