Mitjaevia tridentata 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 : 412

6. Mitjaevia tridentata Lin & Zhang sp. nov.

( Figs 1u–x , 7 )

Description. Crown milky to yellow, with pair of large black triangular spots in the middle. Coronal suture extending to 1/2 length of crown. Face slightly flat in profile. Eyes gray marked with yellow-brownish. Other structures as in generic description ( Figs 1u, v, w, x ).

Abdominal apodemes divergent, only extended to the middle of sternite III ( Fig. 7b ). Anal tube short, with poorly developed appendage ( Fig. 7a ).

Pygofer lobe with several microsetae scattered on ventral side and microtrichia scattered on caudal parts ( Fig. 7a ), dorsal appendage almost straight, produced medially, forming a small tooth ( Figs 7a, c ), apex of ventral appendage with 3 teeth ( Fig. 7a ). Subgenital plate with several microsetae scattered on distal part, distal part expanded, group of microsetae along upper margin of subbasal part merging to 1row near middle, finally extending to apical, 3 macrosetae near middle ( Fig. 7a ). Connective Y-shaped, with manubrium short and broad, central lobe distinct ( Fig. 7d ). Apex of style enlarged and inner margin produced ( Figs 7e, f ). Aedeagus with preatrium developed, longer than aedeagal shaft, aedeagal shaft tubular and slightly S-shaped in profile, with pair of long and slim basal processes, extending almost to gonopore, one angulate process on ventral side below basal processes, gonopore apical, a pair of small tooth-like subapical processes located near lower margin of gonopore on ventral side ( Figs 7g, h ).

Measurement. Male 2.70–2.80mm, female 2.80mm.

Material examined. Holotype: ♂, CHINA, Zhejiang Prov., Lishui , 2017.VII.30, coll. Shuanghu Lin ; Paratypes: 4♂ 7♀, same data as holotype ; 1♂, CHINA, Fujian Prov., Ningde , 2017.VII.24, coll. Shuanghu Lin ; 1♀, CHINA, Zhejiang Prov., Zhoushan , 2017.VI.3, coll. Shuanghu Lin.

Diagnosis. This new species is similar to M. protuberanta , but has the apex of the pygofer ventral appendage with 3 teeth, and the aedeagal shaft apex pointed in profile, with basal processes not extended to gonopore. M. protuberanta has the apex of the pygofer ventral appendage with only 1 tooth, and the aedeagal shaft apex rounded in profile, with basal processes extended to the gonopore.

Etymology. The specific epithet is derived from the Latin prefix “tri-” and the Latin word “dentatus”, referring to the tridentate apex of the pygofer ventral appendage.

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 7. Mitjaevia tridentata 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.