Wilson, E. O.:
Types Mus. Comp. Zool. Harvard.
Etymology l sagax , referring to the globose occipital lobes.
diagnosis a member of the diligens group, close to diligens , radoszkowskii , and allied species, distinguished as follows. Major: yellow; in full-face view, profdes of occipital lobes form almost perfect semicircles; in dorsal-oblique view, humerus is subangulate and pronotum weakly bilobous; petiolar node broad, its apex in side view broadly rounded; all of head dorsum and mesosoma foveolate; gaster entirely smooth and shiny; profde of head in full-face view bare of pilosity, except for clypeus. Minor: yellow; occiput slightly narrowed, with nuchal collar; most of posterior dorsal surface of head and all of gaster smooth and shiny.
Measurements (mm) Holotype major: HW 1.14, HL 1.14, SL 0.76, EL 0.16, PW 0.54. Paratype minor: HW 0.54, HL 0.62, SL 0.70, EL 0.14, PW 0.36. color Major and minor: concolorous medium yellow.
Range Known from the type series and form Granada, Nicaragua (C. f. Baker).
biology The type series was collected from a forested ravine.
figure Upper: holotype, major. Lower: paratype, minor. COLOMBIA: 5 km north of Villavicencio, Meta (William l. and Doris E. Brown). Scale bars = 1 mm.