Cladomorphus trimariensis sp. nov., from Três Marias, Minas Gerais, is described and illustrated. The new species is different from C. phyllinus Gray, 1835 mainly for the operculum and micropylar plate of egg, absence of spines on the mid and hind legs, for the preopercular organ and distal projection of terga IV and V, that are less developed.
Phasmatodea; Phibalosoma; stick insect
