Sericomyrmex morphology, SEM images: integument, mandibles, and eyes. Integument: a, b, c adult worker integument d, e callow worker integument; f male integument. Mandibles: g smooth (S. parvulus worker) MCS median clypeal seta h striate (S. saussurei worker) i faintly striate (S. mayri callow worker). Eyes: j, k eyes without white layer; l partially covered eye (S. parvulus) m completely covered eye, but individual ommatidia still discernible (S. opacus) n eye with thick white layer, ommatidia visible through narrow holes (S. saussurei) o eye completely covered with white layer, individual ommatidia not visible (S. saussurei).