(7) Apterostigmadentigerum Wheeler, 1925

Figure 3E, F

Material examined. COLOMBIA: Atlántico • 1 worker; Juan de Acosta; 10°46′2″N, 075°02′34″W; alt. 177–250 m; Feb.–May 2012; J. Castro, S. Royero leg.; UNAB 4362; Chocó • 2 workers; Lloró; 05°29′00″N, 076° 32′00″W; alt. 115 m; 12 Dec. 2001; Y. Palacios, O. Mena leg.; UNAB 4740; Chocó • 1 worker; Lloró; 05°29′00″N, 076°32′00″W; alt. 115 m; 04 May 2002; Y. Palacios, O. Mena leg.; UNAB 2230 .

Identification. Frontal lobes in frontal view with strong angle or posterolateral lobe; lateral-ventral margin of frontal lobe sinusoidal: convex posteriorly and curved towards dorsum, without any ventral curvature; and pro- podeum in lateral view with anterodorsal profile long and gradually very convex, posteriorly shorter and more curved (Lattke 1997).

Distribution. Apterostigmadentigerum is widely distributed in Central and South America, its known distribution range extends from Honduras to Mato Grosso in central Brazil (Lattke 1997; Mayhé-Nuñes and Jaffé 1998).