Key to Rogeria of Guyana

This worker key is based on: [[Media:Sosa Calvo & LaPolla 2006.pdf|LaPolla, J. S. and J. Sosa-Calvo. 2006. Review of the ant genus Rogeria (Hymenoptera: Formicidae) in Guyana. Zootaxa. 1330:59-68. PDF]]

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 * Rogeria
 * Guyana

1

 * Hairs on mesosomal dorsum entirely appressed, or consisting of a mixture of mostly appressed and a few decumbent hairs . . . . . 2


 * Mesosomal dorsum bearing some erect hairs; appressed to suberect hairs may also be present . . . . . 4

2
return to couplet #1
 * Body of clypeus not greatly projecting over clypeal apron; color brown to shiny dark brown . . . . . 3


 * In lateral view, body of clypeus greatly projecting over clypeal apron; color dull brown . . . . . Rogeria prominula

3
return to couplet #2
 * Smaller species (TL: 1.9 mm–2.9 mm); light brown to brown and dull . . . . . Rogeria foreli


 * Larger species (TL: 3.75 mm–3.88 mm); dark brown and shiny . . . . . Rogeria tsumani

4
return to couplet #1
 * In lateral view, petiolar node low and curving gradually into anterior peduncle . . . . . 5


 * In lateral view, petiolar node tall and more sharply differentiated from anterior peduncle, node rounded, subquadrate, or squamiform . . . . . 6