(1)
Quinet, Y.; Hamidi, R.; Ruiz-Gonzalez, M. X.; de Biseau, J.-C.; Longino, J. T. Crematogaster Pygmaea (Hymenoptera: Formicidae: Myrmicinae), a Highly Polygynous and Polydomous Crematogaster From Northeastern Brazil. Zootaxa 2009, 2075, 45–54.