|Publication Type:||Journal Article|
|Year of Publication:||1978|
|Journal:||Journal of Arachnology|
The scorpion Centruroides koesteri Kraepelin from Costa Rica, previously known only from one female, is redescribed and illustrated. Additional specimens of both sexes come from Provincia de Guanacaste. This species appears to be endemic to northwestern Costa Rica’s tropical semi-evergreen and deciduous forest, and to be rather strictly arboreal in habits. Its closest relative is considered to be Centruroides margaritatus (Gervais), and differential characters between these, and other related species, are given.