A taxonomic review of the genus Myrmelachista (Hymenoptera: Formicidae) in Costa Rica. Author Longino, J. T. text Zootaxa 2006 1141 1 54 http://antbase.org/ants/publications/21030/21030.pdf journal article 21030 323B9B2C-F6AE-40B5-982B-4BBEA5317786 Myrmelachista ambigua ramulorum Wheeler 1908:155. Syntype workers, queens, males: Puerto Rico , Culebra Island ( Wheeler ) ; Puerto Rico , Arecibo, Utuado ( Wheeler ) [ MCZC , USNM ] ( USNM syntype worker examined). Raised to species: Wheeler 1934:189.