A new species of the Genus Adenissus (Hemiptera: Fulgoroidea: Caliscelidae) from United Arab Emirates

Abstract

Adenissus fuscus sp. nov. is described from Wadi Wurayah National Park in Fujairah Emirate of United Arab Emirates where it was collected on light during the night. Thus currently the genus Adenissus Linnavuori, 1973 is known after three species in Arabian Peninsula and A. fuscus sp. nov. is second species of the genus recorded from UAE. According to elongate coryphe A. fuscus sp. nov. is closely related to A. isinus Dlabola, 1980 described after a female from Hormozgan Province of Iran. A. fuscus sp. nov. well differs from A. isinus by smaller body size (female – 4.6 mm), brown general coloration, and longer fore wings reaching hind margin of abdominal tergite IV. Both A. isinus Dlabola and A. fuscus sp. nov. represent a distinct group within the Adenissus differs from other species of the genus by elongate coryphe and long rostrum reaching hind margin of abdominal sternum VII (other species of the genus have rostrum reaching just hind coxae). Male of A. fuscus sp. nov. (holotype) is characterized by wide phallobase, with denticated lateral margins and many denticles on ventral side, pygofer with spine-shaped process in its upper part which arises on inner side, and suspensorium with large horn-shaped process, pointed apically. A key to distinguish A. isinus Dlabola from A. fuscus sp. nov. is given.