Wood (2007) distinguishes the species from T. ebenus (Wood) by the larger body size; and by the different arrangement of minor denticles lateral to the major spine.
Wood (2007) reported the biology of this species as the same as in T. ebenus (Wood). Wood reported T. ebenus boring in wood of broken branches and tree seedlings 2-7 cm in diameter. The tunnel was radial in the wood about 1 cm, then it branched, the branches turned transversely across the grain of woodand followed a growth ring to the opposite side of the branch where they usually anatomosed to form a complete ring. Masses of eggs were deposited in the tunnel. The larvae are xylomycetophagous and fed communally on the ambrosia mycelium and, eventually, on the wood as they expanded the original tunnel. About 20-50 larvae were produced in each gallery system examined.