Leptothorax is a genus of small ants with mainly Holarctic distributions. The genus is notable for its widespread social parasitism, i.e. they are dependent on the help of workers from other ant species during a part or the whole of their life cycles.
Closely related genera are Cardiocondyla, Stereomyrmex and Romblonella.
Species
- Leptothorax acervorum <small>(Fabricius, 1793)</small>
- Leptothorax athabasca <small>Buschinger & Schulz, 2008</small>
- Leptothorax buschingeri <small>Kutter, 1967</small>
- Leptothorax calderoni <small>Creighton, 1950</small>
- Leptothorax crassipilis <small>Wheeler, 1917</small>
- Leptothorax faberi <small>Buschinger, 1983</small>
- Leptothorax goesswaldi <small>Kutter, 1967</small>
- Leptothorax gredleri <small>Mayr, 1855</small>
- Leptothorax kutteri <small>Buschinger, 1966</small>
- Leptothorax muscorum <small>(Nylander, 1846)</small>
- Leptothorax oceanicus <small>(Kuznetsov-Ugamsky, 1928)</small>
- Leptothorax pacis <small>(Kutter, 1945)</small>
- Leptothorax paraxenus <small>Heinze & Alloway, 1992</small>
- Leptothorax pocahontas <small>(Buschinger, 1979)</small>
- Leptothorax retractus <small>Francoeur, 1986</small>
- Leptothorax scamni <small>Ruzsky, 1905</small>
- Leptothorax sphagnicola <small>Francoeur, 1986</small>
- Leptothorax wilsoni <small>Heinze, 1989</small>
- Leptothorax zhengi <small>Zhou & Chen, 2011</small>
References