Solenopsis helena ultrix

This taxon is not in use as it is currently considered to be a junior synonym of Solenopsis helena.

Nomenclature

 * ultrix. Solenopsis helena subsp. ultrix Wheeler, W.M. 1921f: 157 (w.q.) GUYANA. Junior synonym of helena: Pacheco & Mackay, 2013: 179.

Additional References

 * [[Media:Pacheco, J.A. & Mackay, W.P. 2013. The systematics and biology of the New World thief ants of the genus Solenopsis.pdf|Pacheco, J.A. & Mackay, W.P. 2013. The systematics and biology of the New World thief ants of the genus Solenopsis (Hymenoptera: Formicidae). Edwin Mellen Press, Lewiston, New York. 501 pp.]]