Abstract
Lissomus arawak
sp. nov
. is described from montane mesic forest sites in Monseñor Nouel, Pedernales and Puerto Plata provinces of the Dominican Republic. This is the third species of the genus reported from the Greater Antilles and Hispaniola. It is distinguished by its highly convex and ovoid form, shining black integument, and appearing glabrous dorsally due to very short pubescence. Structurally it is more similar to
Lissomus gagatinus
Bonvouloir, 1859 and
Lissomus impressifrons
Bonvouloir, 1859 from Central America and South America indicating a probable second lineage of these beetles in the Greater Antilles.