Alnetoidia (Alnetoidia) gracilis, Cao, Yanghui, Yang, Meixia & Zhang, Yalin, 2016

Cao, Yanghui, Yang, Meixia & Zhang, Yalin, 2016, Review of the leafhopper genus Alnetoidia Dlabola (Hemiptera: Cicadellidae: Typhlocybinae: Erythroneurini) from China, with descriptions of two new species, Zootaxa 4193 (3), pp. 573-587 : 579

Alnetoidia (Alnetoidia) gracilis sp. nov.

( Fig. 4 )

Description. Body yellowish, without markings.

Abdominal apodemes ( Fig. 4 a) extended to hind margin of 4th sternite.

Pygofer side ( Fig. 4 b) with several rigid setae on posterior margin; dorsal appendage sinuated; ventral appendage slim, extended from ventral margin of pygofer side. Subgenital plate ( Fig. 4 e) with group rigid setae near base, row of marginal microsetae from near base to apex, shorter than the basal ones, with 3 macrosetae subbasally along outer margin. Style ( Figs 4 f, g) with apical part footlike. Connective ( Fig. 4 h) broad, lateral arms short and broad. Aedeagal shaft ( Figs 4 i–l) tubular, curved dorsad, paired basal processes slim and long, the length and thickness slightly varies among individuals, some specimens bearing a small spinelike process on lateral margin; dorsal apodeme large in lateral view, preatrium short; gonopore apical on ventral side.

Measurement. Male 3.42mm, female 3.45mm.

Material examined. Holotype: ♂, CHINA, Sichuan Prov., Mt. Emei , 950m, 30 x 1999, coll. I. Dworakowska ; paratypes: 1♂, 1 xi 1999, other data same as holotype; 1♀, 29 x 1999, other data as holotype; 18♂♂, Sichuan Prov., Ya’an, Hongta Botanic Garden , Pterocarya stenoptera , 12 vii 2010, coll. Cao Yanghui .

Host. Pterocarya stenoptera .

Remarks. The new species is similar to A. (Alnetoidia) dujuanensis Song & Li , but differs in having the pygofer dorsal appendage shorter, the aedeagal shaft distinctly curved dorsad and the paired basal processes shorter and extended from the dorso-lateral margins of the shaft.

Etymology. The specific epithet is derived from the Latin word “ gracilis ”, referring to the slender lateral processes of the aedeagal shaft.

Figures

FIGURE 4 Alnetoidia (Alnetoidia) gracilis sp. nov. a. abdominal apodemes; b. genital capsule; c. anal tube appendage and pygofer dorsal appendage; d. subgenital plate, style, connective and the 9 th sternite; e. subgenital plate, dorsal view; f. style, dorsal view; g. style, lateral view; h. connective; i. aedeagus of holotype, lateral view; j. aedeagus of holotype, caudal view; k. aedeagus of paratype, lateral view; l. aedeagus of paratype, caudal view.