ACKNOWLEDGEMENTS
The work was supported by a National Science Foundation grant to JNS (CAREER, IOS-152822) and KK (DEB-1354629). Travel to Florida was also funded by a UT-Tyler Internal Research Grant to JNS. We thank Walter Tschinkel for providing logistical support while collecting in North Florida. Joshua King and Andrea Lucky provided T. septentrionalisspecimens from the Orlando and Gainesville, Florida areas, respectively. This is paper No. 4 of the Ant Symbiosis Laboratory.