Dentaneura biangulata Lin & Zhang, 2023

Lin, Shuanghu, Zou, Hongfen, Huang, Min & Zhang, Yalin, 2023, Five new species and two new records of Erythroneurini from China (Hemiptera, Cicadellidae, Typhlocybinae), Zootaxa 5227 (5), pp. 568-582 : 569

Dentaneura biangulata Lin & Zhang sp. nov.

( Figs 1a–d , 3 )

Description. Crown with pair of dark spots. The other characters as in generic description ( Figs 1a, b, c, d ).

Abdominal apodemes not extended to sternite IV ( Fig. 3b ). Anal tube short, with poorly developed appendage ( Fig. 3a ).

Pygofer with few short microsetae near posterior margin and group of macrosetae at cephalo-ventral angle ( Fig. 3a ). Pygofer dorsal appendage not exceeding posterior margin of pygofer lobe ( Figs 3a, c ). Subgenital plate with about 5 macrosetae scattered on lateral surface near outer margin, 2 angled processes apically, 3–4 peg-like on each angled process ( Fig. 3a ). Connective V-shaped, manubrium short ( Fig. 3d ). Aedeagal shaft compressed distinctly, gourd-like in ventral view ( Figs 3g, h ).

Measurement. Male 2.65–2.75mm, female 2.70mm.

Material examined. Holotype: ♁, CHINA, Guizhou Prov., Qiannan , 1950m, 2013.VII.27 ; Paratypes: 4♁ 1♀, same data as holotype .

Remarks. This new species is similar to Dentaneura henanensis Song, Li & Dai , but has the pygofer dorsal appendage not exceeding the posterior margin, the subgenital plate with 2 angled processes apically, and the aedeagal shaft obviously expanded medially in ventral view. Dentaneura henanensis Song, Li & Dai has the pygofer dorsal appendage distinctly exceeding the posterior margin, the subgenital plate with only 1 angled process apically, and the aedeagal shaft slightly expanded medially in ventral view.

Etymology. The specific epithet is derived from Latin prefix “bi-” and the Latin word “angulatus”, referring to the subgenital plate with 2 angled processes apically.

Figures

FIGURE 1. a–d. Dentaneura biangulata Lin & Zhang sp. nov. e–h. Motaga rokfaoides Lin & Zhang sp. nov. i–l. Seriana paraequata Lin & Zhang sp. nov. m–p. Shibinga graciliprocessa Lin & Zhang sp. nov. q–t. Shibinga grossiprocessa Lin & Zhang sp. nov. a, c, e, g, i, k, m, o, q, s. dorsal view; b, f, j, n, r. lateral view; d, h, l, p, t. face.

FIGURE 3. Dentaneura biangulata Lin & Zhang sp. nov. a. pygofer and anal tube, lateral view; b. abdominal apodemes; c. pygofer dorsal appendage, lateral view; d. connective; e. style, ventral view; f. style, lateral view; g. aedeagus, lateral view; h. aedeagus, ventral view; i. subapical protrusion of subgenital plate, posterior view; j. anal appendage, posterior view.