Key to Paratrechina Species

This key to the species of Paratrechina is based on LaPolla & Fisher (2014).

1

 * Mandibles with eight teeth; six teeth on masticatory margin, one tooth on basal angle, another tooth on inner mandibular margin; head cuticle densely rugorecticulate =>Paratrechina kohli
 * Mandibles with five teeth; head cuticle smooth and shiny => 2

2

 * Scapes without macrosetae; dorsum of propodeum almost flat to very shallowly domed =>Paratrechina longicornis
 * Scapes with macrosetae; dorsum of propodeum rounded, dome-like => 3

3

 * Macrosetae dark brown, occasionally with lighter tips; SI greater than 195; Afrotropical region =>Paratrechina zanjensis
 * Macrosetae yellow to whitish; SI less than 195; Malagasy region => 4

4

 * Dark brown, with cuticle giving a faint greenish-blue reflection; propodeum with fine striations across surface =>Paratrechina ankarana
 * Brown with patches of lighter cuticle across body, giving species a mottled appearance; propodeum smooth and very shiny =>Paratrechina antsingy