(19) Cyphomyrmex castagnei Mackay & Baena, 1993

Material examined. COLOMBIA: Nariño • 1 worker; Ricaurte; 01°13′35″N, 078°03′04″W; alt. 920 m; 21 Sep. 2015; J. Cancino leg.; UNAB 4748 .

Identification. Mandible with five teeth; lateral cor- ner of cephalic vertex with long horn-like extensions; mesosoma with a large, spine-like posterior pronotal tubercle and a large anterior mesonotal tubercle; mesonotal protuberances spine like; and mesosoma with squamate hairs (Mackay and Baena 1993).

Distribution. Cyphomyrmex castagnei is only known from Panama and the Pacific coast of Colombia (Fig. 1B) (MacKay and Baena 1993; Fernández et al. 1996; Fernández and Sendoya 2004).