Myrmelachista osa Longino, 2006a: 42, figs. 1, 4, 7-9 (w.q.) COSTA RICA. Neotropic.

Primary type information: Primary type material: holotype queen. Primary type locality: Costa Rica: Prov. Puntarenas, Rancho Quemado, Osa Peninsula, 8°42’N, 83°33’W, 200 m., 15.xii.1990, no. 2752 (J. Longino). Primary type depository: INBC. Secondary type information: Secondary type material: paratype workers, paratype queens (numbers not stated). Secondary type locality: same as for holotype. Secondary type depositories: BMNH, LACM, MCZC, UCDC, USNM.