Mitjaevia bisecta Lin & Zhang, 2022

Lin, Shuanghu, Zou, Hongfen, Huang, Min & Zhang, Yalin, 2022, Taxonomic study of the leafhopper genus Mitjaevia Dworakowska (Hemiptera: Cicadellidae: Typhlocybinae: Erythroneurini) from China, with descriptions of five new species, Zootaxa 5194 (3), pp. 403-415 : 409

3. Mitjaevia bisecta Lin & Zhang sp. nov.

( Figs 1i–l , 4 )

Description. Crown with color from milky to yellow, pair of large black spots in the middle. Eyes with basal part brownish, apical part blackish. Other characters as in generic description ( Figs 1i, j, k, l ).

Abdominal apodemes short and broad, extending to the middle of sternite III ( Fig. 4b ). Anal tube moderately long with poorly developed appendage ( Fig. 4a ).

Pygofer lobe with several microsetae scattered on ventral and caudal parts ( Fig. 4a ), dorsal appendage narrowing from middle to apex, apex pointed ( Figs 4a, c ). Subgenital plate with row of microsetae along outer margin, basal setae longer and forming a group, 3 macrosetae of different lengths near middle ( Fig. 4a ). Connective Y-shaped, with manubrium slim, central lobe developed ( Fig. 4d ). Style with apex slim and foot-like ( Figs 4e, f ). Aedeagus with dorsatrium rudimentary and preatrium developed, aedeagal shaft slightly compressed, gonopore in middle on ventral surface, aedeagal shaft connected with basal process by membranous structure, process bifurcated near middle or subapically, brunches of process continue close to each other ( Figs 4g, h ).

Measurement. Male 2.80mm.

Material examined. Holotype: ♂, CHINA, Sichuan Prov., Mianyang, 2018.Ⅴ.16, Yuru Yang ; Paratypes: 1♂, same data as holotype .

Diagnosis. This new species is similar to M. protuberanta , but has the pygofer dorsal appendage almost straight, the aedeagal shaft without processes subapically, and the pygofer side without a ventral process. M. protuberanta has the pygofer dorsal appendage curved, the aedeagal shaft with pair of tooth-like processes subapically, and the pygofer side with ventral process.

Etymology. This specific epithet is derived from the Latin word “bisectus”, referring to the bisected ventral aedeagal process.

Figures

FIGURE 1. a–d. Mitjaevia acrodonta Lin & Zhang sp. nov. e–h. Mitjaevia dworakowskae Chen, Song & Webb, 2020 i–l. Mitjaevia bisecta Lin & Zhang sp. nov. m–p. Mitjaevia flexuosa Lin & Zhang sp. nov. q–t. Mitjaevia quinquedentata Lin & Zhang sp. nov. u–x. Mitjaevia tridentata Lin & Zhang sp. nov. a, c, e, g, i, k, m, o, q, s, u, w. dorsal view; b, f, j, n, r, v. lateral view; d, h, l, p, t, x. face.

FIGURE 4. Mitjaevia bisecta Lin & Zhang sp. nov. a. pygofer, lateral view; b. abdominal apodemes; c. pygofer dorsal appendage and anal appendage; d. connective; e. style, ventral view; f. style, lateral view; g. aedeagus, lateral view; h. aedeagus, ventral view.