Tribe Xyloterini LeConte, 1876

The xyloterines are ambrosia beetles, but unlike the xyleborines are outbreeders with a 1:1 sex ratio. The gallery system consists of fairly short branched tunnels, usually in one transverse plane. The female oviposits in separate egg niches in the roof and floor of the gallery. The larvae develop in individual barrel-shaped cells feeding on the ambrosia fungus growing on the walls of the cell, enlarging the cell as they grow. Pupation occurs in the cell. The young adult emerges into the gallery and leaves by the original entrance hole (Schedl 1951; Borden 1988; Smith & Hulcr 2015).