(10) Apterostigma jubatum Wheeler, 1925

Figure 4C, D

Material examined. COLOMBIA: Chocó • 1 worker; Quibdó; 05°40′40″N, 076°35′36″W; alt. 35 m; 24 Nov. 2001; J. Neita leg.; UNAB 4743 .

Identification. Head in frontal view with frontal lobes ovoid; anterior portion of clypeus with profile concave and convex in the middle; mandibles with 7–8 teeth; and humeral prominence high (Lattke 1997).

Distribution. Apterostigma jubatum is mostly distributed throughout the Amazon-Orinoco basin, known to occur in Bolivia, Colombia, Peru, and Venezuela (Fernández et al. 1996; Lattke 1997) as well as the Bra- zilian states of Amazonas, Minas Gerais, and Pará.