Genus Leptothorax Mayr

The ant genus Leptothorax formerly comprised a large and heterogeneous assemblage of species but Bolton (2003) redefined it to include only those species closely related to L. acervorum Fabricius. Most California species previously placed in Leptothorax are now assigned to Temnothorax Mayr (see below), with two species remaining in Leptothorax .