(21) Cyphomyrmex costatus Mann, 1922

Figure 6A, B

Material examined. COLOMBIA: Antioquia • 4 gynes; Amalfi; 06°59′01″N, 075°22′06″W; alt. 975 m; 30 Jul. 1997; F. Sernaleg.; MEFLG 40837; UNAB 553, 3461, 4749; Tolima • 2 workers; Guamo; 04°02′05″N, 074°58′25″W; alt. 323 m; 19 Aug. 2003; F. Serna, E. Díaz leg.; UNAB 4749, 3461 .

Identification. Disc of first gastral tergum with strong longitudinal ridges on each side of midline; mid-pronotal tubercles absent; and posterodorsal margin of petiole nei- ther drawn out nor bidentate (Kempf 1965).

Distribution. Cyphomyrmex costatus is continuously distributed throughout Central andnorthern South America, from the states of Oaxaca and Veracruz in Mexico, to the states of Amazonas and Pará in Brazil (Harada and Ketelhut 2009; Bezděčková et al. 2015).