Macrosiagon
Guides
Macrosiagon excavata
Macrosiagon excavata is a species of wedge-shaped beetle in the family Ripiphoridae. It is native to South America, with specimens documented in museum collections from that region. The species was described by Klug in 1825. Like other members of the genus Macrosiagon, it is likely associated with the nests of solitary wasps, though specific host records for this species are not well documented.
Ripiphorinae
wedge-shaped beetles
Ripiphorinae is a subfamily of wedge-shaped beetles within Ripiphoridae, comprising at least 2 genera (Macrosiagon and Ripiphorus) and approximately 40 described species. Members exhibit hypermetamorphic development with free-living first instar larvae. The subfamily includes species with documented oceanic dispersal capabilities, as evidenced by Ripiphorus caboverdianus on Cape Verde.