Tialidia Nielson, 1982

Wang, Xiu-Dan, Dietrich, Christopher H. & Zhang, Ya-Lin, 2018, Four new species of tribe Coelidiini (Hemiptera: Cicadellidae: Coelidiinae) from the Afrotropical Region, Zootaxa 4415 (3), pp. 591-600 : 598

Genus Tialidia Nielson

Tialidia Nielson, 1982: 20 ; Nielson, 1991: 405. Type-species: Tialidia congoensis Nielson, 1982 , original designation.

Size large, 8.0 to 11.1mm long. Color fuscous to piceous throughout, rarely with markings.

Body strong. Head wider than long, distinctly narrower than pronotum; anterior margin broad rounded. Crown broad, slightly produced beyond anterior margin of eyes; area between eyes equal to or slightly wider than eye width; lateral margins convergent basally. Ocelli prominent, situated near anterior margin of crown. Pronotum median length longer than crown but shorter than mesonotum. Forewings elongate, with 3 anteapical cells, outer one closed, and 5 apical cells, appendiX well developed. Face with frontoclypeus flattened, without median longitudinal carina, lateral margin conveX; clypellus long with apeX eXpanded laterally.

Male genitalia. Pygofer large, sometimes with small caudoventral processes, caudodorsal lobe small if present. Aedeagus robust, with deep and broad evagination throughout the shaft, profusely armed with strong setalike spines. Gonopore medial. Connective triangular, anterior arm short and rolled. Style broad, lateral margins curved and gradually convergent distally. Plate narrow and long, with short spines apically.

Remarks. This genus is similar to Brasura Nielson, 1982 , but body robust and aedeagus robust with broadly evaginated shaft and compleX asymmetrical arrangement of numerous strong spines.