About Actinosoma pentacanthum (Walckenaer, 1841)
Actinosoma is a genus of orb-weaver spiders that contains only one species: Actinosoma pentacanthum, which has the scientific name Actinosoma pentacanthum (Walckenaer, 1841). The genus Actinosoma was first described by E. L. Holmberg in 1883. This single species is distributed across South America, ranging from Colombia to Argentina.