In April, 2015, Eli and Cong made a two-week collecting trip to Samoa. One purpose was to look for two endemic species Pheidole aana and Pheidole atua, which was last collected in 1967 before this trip. They ended up finding Pheidole aana, along with four other endemic species among the 33 ant species collected during this trip. They also recorded two new genera from Samoa, Discothyrea and Proceratium. Moreover, they collected native forest species at an altitude as high as 1400 meters.