Parathaia Kuoh, 1982

Cao, Yanghui, Dmitriev, Dmitry A., Dietrich, Christopher H. & Zhang, Yalin, 2020, Review of the leafhopper genus Thaia Ghauri and related genera (Hemiptera: Cicadellidae: Typhlocybinae: Erythroneurini), Zootaxa 4868 (3), pp. 331-367 : 355-357

Parathaia Kuoh, 1982

Parathaia Kuoh, 1982: 398

Type species: Parathaia bimaculata Kuoh, 1982 , by original designation

Description. Body robust, ground color light brown. Head slightly narrower than pronotum, crown fore margin subparallel to posterior margin, coronal suture visible. Face convex in profile, anteclypeus broad, oval. Pronotum with large impressions. Forewing with first and third apical cell wide, second and fourth apical cell narrow, fourth apical cell not reached apex of wing, shorter than third apical cell. Hind wing venation usual for Erythroneurini, RA vein absent.

Anal tube sclerotized, with robust appendages basally, tubular, base of appendage connected with dorsal apodeme of aedeagus.

Male genital capsule spherical, with some fine setae at lower basal angle and near dorsal margin; dorsal appendage absent; ventral appendage tubular, extended from lower basal angle, fused to lobe basally. Subgenital plate surpassing hind margin of pygofer lobe, base wide and narrowing toward apex, distal disc expanded vertically; with row of about 5 macrosetae near outer margin and row of rigid setae along lateral margin and some rigid setae scattered on distal disc. Style with apical part slender, preapical lobe greatly expanded, nearly triangular. Connective lamellate, central lobe well developed. Aedeagal shaft tubular, apex not papillary, atrium relatively small; dorsal apodeme large, lamellate; preatrium short; gonopore terminal.

Remarks. Parathaia Kuoh was treated as a junior synonym of Thaia Ghauri by Song & Li (2014). However, the type species of Parathaia is very different from most species of Thaia in the male genitalia. As mentioned above, species of Thaia are quite variable. To avoid further expanding the concept of Thaia , we proposed keeping Parathaia as a separate genus.

Distribution. China.

Diagnosis. This genus is similar to Thaia (Thaia) Ghauri , but the anal tube appendage, the pygofer ventral appendage and the aedeagus are very different from the T. subrufa group of the latter. Parathaia has robust appendages extending from the basal lower margin of the anal tube, an unexpanded base of the pygofer ventral appendage and a large, compressed dorsal apodeme of the aedeagus.