First record of troglobitic Fulgoromorpha from Italy (Hemiptera, Auchenorrhyncha, Cixiidae)

A new genus and a new species of a troglobitic Cixiidae from Sicily are described.Ibleocixius gen. n. differs from Cixius and related taxa in a different arrangement ofseveral characters which are also present in other taxa. Characters at genus level lie inthe peculiar morphology of the aedeagus which has only one movable spine, a longitudinalsclerotized ridge on the right side and the characteristic sclerotized areas alongthe margins and on the left side; in females the transition between the wax plate andthe lateral abdomen is very peculiar, forming a rather rounded angle; tergite IX bearinga wax plate partially divided in two portions. The new species, Ibleocixius dunae sp. n.,has strongly reduced eyes, the forewings are slightly and the hind wings strongly reduced;the body is partially covered by wax granules that pile up waxflakes mainlyalong the wing margins. Special characters pertain to the structure of the male andfemale genitalia. The new species up to now is known only from a single limestonecave of the South-eastern Sicily.