Fescennia

Stroiński, Adam, Łukasik, Piotr, Bartlett, Charles R., Pilet, Fabian, Hasinjaka, Rasolondalao Harin’Hala, Randretsiferana, Safidinirina Armande, Razafindrakotomamonjy, Andrianatenaina & Bahder, Brian W., 2025, New planthoppers in the genus Fescennia (Hemiptera: Derbidae) from screw palms (Pandanus spp.) in eastern Madagascar, with redescription of F. bivittata and an updated key to the genus, Zootaxa 5729 (1), pp. 75-104 : 87

Key to species of Malagasy Fescennia based on adult males

1. Medioventral process of pygofer trifid, elongated callus on dorsal margin of eyes …................ F. cornigera sp. nov.

–. Medioventral process of pygofer bifid, dorsum of eyes with callus absent......................................... 2

2. Ventral process of aedeagus bifurcated............................................................ F. bivittata

–. Ventral process of aedeagus trifurcated.................................................... F. analarara sp. nov.