Cephalotes olmecus is an extinct species of arboreal ant of the genus Cephalotes known only from Mexican amber inclusions.[1]
Cephalotes olmecus was first described in 1999 from two Chiapas amber fossil inclusions of respectively a worker and a dwarf soldier ant.[2] Maria de Andrade, who described the species, placed C. olmecus in the grandinosus clade in which it forms a subclade with fossil species Cephalotes maya and extant species Cephalotes foliaceus.[2]
The specific epithet olmecus is in reference to the Olmecs of Mexico.[2]