Animated coloured scanning electron micrograph (SEM) of Rusty millipede (Trigoniulus corallinus). Ventral head view with mouthparts, antenna and legs. Trigoniulus corallinus, called the rusty millipede, is a species of millipede in the family Trigoniulidae. It is native to Thailand and Myanmar. It is also found in North America, as an introduced species. These millipedes live in moist areas, rotten wood and compost. The genome of has sequenced in 2015.