The entomogenous fungus Gonatorrhodiella coccorum Petch is transferred to a new genus, Pleurodesmospora, which is characterized by erect or procumbent conidiophores with terminal and intercalary conidiogenous cells, bearing numerous minute, cylindrical conidiogenous pegs; dacryoid phialoconidia are produced in short, basipetal chains. The nomenclatural history of this fungus is reviewed and cultures isolated from spiders in Ghana are described.