Abstract
A new entomogenous Ascomycete found in cave: Cordyceps riverae.—A new species of entomogenous Cordyceps, belonging to Subgenus Racemella (Ces.) Sacc., found on an adult Lepidotteron in a cave near L'Aquila (Abruzzo, Italy) is described. The characters of this species, named Cordyceps riverae, are compared with those of other similar species of Cordyceps.