Key to the species of Ocyochterus Drake & Gómez-Menor

1 Hemelytra with a narrow, creamy white fascia running transversely across each hemelytron from the posterior margin of the embolium to the apex of the clavus (Fig. 1); pronotum, clavus and inner corium lacking pruinose markings; lateral pronotal and embolar margins broadly marked with pale yellow along their entire lengths (Fig. 1); Ecuador (Fig. 21)... O. victor (Bolívar)

- Hemelytra lacking a transverse pale fascia (Figs. 2–4); pronotum and hemelytra including clavus and inner corium bearing scattered large, linear bluish pruinose markings along inner basal clavus and inner margins of lateral pronotal flanges (Figs. 2–4); lateral pronotal and embolar margins bearing only limited yellow patches anterolaterally (Figs. 3, 4), or such yellow markings lacking (Fig. 2); Panama to Ecuador (Fig. 21)............................................................... 2

2 Dorsal ground coloration black with metallic red overtones (Fig. 4); lateral pronotum and base of clavus bearing large, elongate, bluish pruinose markings (Fig. 4); lateral pronotal and embolar margins bearing yellow markings anterolaterally (Fig. 4); body form elongate ovate, slightly tapering posteriorly (Fig. 4); frons when viewed anteriorly lacking dark yellow patches along ventral portions of inner eye margins (Fig. 8); Colombia and Ecuador (Fig. 21)....... O. irmae D. Polhemus & J. Polhemus

- Dorsal ground coloration dark brown to black (Figs. 2, 3); pronotum and hemelytra bearing scattered irregular pale blue to lavender pruinose markings (Figs. 2, 3), but lacking linear pale blue markings; lateral pronotal and embolar margins lacking yellow markings anteromedially, bearing at most a few small, scattered dark yellow patches (Figs. 2, 3); body form broadly ovate, rotund, not tapering posteriorly (Figs. 2, 3); frons when viewed anteriorly bearing dark yellow patches along ventral portions of inner eye margins (Figs. 5, 6); Ecuador or Panama (Fig. 21).......................................... 3

3 Pronotum and embolar margin lacking dark yellow patches (Fig. 2); frons dark metallic green (Fig. 5); male right paramere with raised transverse ridge near midpoint of distal arm, apex of distal arm not expanded (Fig. 12); male proctiger elongate trapezoidal (Fig. 10); Ecuador (Fig. 21)........................................................ O. graziae n. sp.

- Pronotum and embolar margin bearing scattered dark yellow patches (Fig. 3); frons dark metallic blue (Fig. 6); male right paramere lacking a raised transverse ridge on distal arm, apex of distal arm slightly expanded and spatulate (Fig. 18); male proctiger roughly triangular (Fig. 16); Panama (Fig. 21)................................................. O. gilloglyi n. sp.