(17) Apterostigma sp. 2, pilosum species-group

Material examined. COLOMBIA: Cauca • 1 worker; Tambo; 02°30′24.11″N, 076°59′57″W; alt. 1448 m; 1–8 Apr. 2006; A. Galvis, Y. Mena leg.; UNAB 5455 .

Comment. This new Apterostigma species is only known from a single worker and will be described in a forthcoming taxonomic study.