Mitjaevia quinquedentata 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 : 411-412

5. Mitjaevia quinquedentata Lin & Zhang sp. nov.

( Figs 1q–t , 6 )

Description. Ground color milky. Crown with pair of large black spots in the middle. Eyes gray. Frontoclypeal area yellow with edge blackish, lorum white. Other features as in generic description ( Figs 1q, r, s, t ).

Abdominal apodemes short and broad, extended to middle of sternite III ( Fig. 6b ). Anal tube moderately long, with poorly developed appendage ( Fig. 6a ).

Pygofer side with about 3 stout setae on inner side of posterior margin ( Fig. 6a ), dorsal appendage bifurcated subapically, lower branch finger-like ( Figs 6a, c ), ventral appendage developed, apex pointed and exceeding posterior margin of pygofer lobe ( Fig. 6a ). Subgenital plate expanded subbasally, 2 rows of microsetae along upper margin of subbasal convex part, merging to 1 row near middle, finally extending to constricted region, 3 macrosetae on constricted region near outer margin, several microsetae scattered on caudal part ( Fig. 6a ). Connective Y-shaped, with manubrium moderately developed and central lobe developed ( Fig. 6d ). Apex of style enlarged with inner margin produced ( Figs 6e, f ). Aedeagus with dorsatrium relatively small, preatrium developed, aedeagal shaft tubular and slightly curved ventrad, with 5 small tooth-like processes on ventral surface and one triangular process fused to dorsal surface extended from near base to subapex in profile, gonopore apical ( Figs 6g, h ).

Measurement. Male 2.95–3.05mm, female 2.95–3.05mm.

Material examined. Holotype: ♂, CHINA, Shaanxi Prov., Yanan , 2021.IX ; Paratypes: 2♂ 4♀, same data as holotype .

Diagnosis. This new species is similar to M. wangwushana , but has the aedeagal shaft tubular and with 5 small tooth-like processes on the ventral surface and one triangular process fused to the dorsal surface, and the inner margin of the style apex produced. M. wangwushana has the aedeagal shaft compressed with a pair of large lamellate processes on the ventral surface, and inner margin of the style apex almost truncate.

Etymology. This specific epithet is derived from the Latin word “quinquedentatus”, referring to the 5 small tooth-like processes on the ventral surface of the aedeagal shaft.

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