Pettya tenuis, Cao & Dmitriev & Dietrich & Zhang, 2019

Cao, Yanghui, Dmitriev, Dmitry A., Dietrich, Christopher H. & Zhang, Yalin, 2019, New erythroneurine leafhopper species from the Australian realm (Hemiptera: Cicadellidae: Typhlocybinae), Zootaxa 4671 (2), pp. 251-258 : 257-258

Pettya tenuis sp. nov.

( Figs 3 , 4 p–t)

Description. Ground color ( Figs 4 p–t) yellowish-beige, eyes grey. Vertex with pair of black patches near coronal suture; anteclypeus infuscated centrally. Pronotum with pair of oblique brown stripes near midline, continuous anteriorly with patches on vertex and posteriorly with brown basal triangles of mesonotum. Forewing with light brown stripes along inner margin and near outer margin, paler apically.

Pygofer lobe ( Fig. 3d ) narrowing apically, distal angle ( Figs 3e, f ) pigmented and serrated. Subgenital plate ( Figs 3d, h ) constricted near base, macrosetae small, with dense microsetae distally. Apical part of style ( Figs 3i, j ) thicker than basal part, apex slightly pointed, preapical lobe fin-like in lateral view. Connective ( Fig. 3k ) with lateral arms thick. Aedeagal shaft ( Figs 3l, m ) asymmetrical, slightly twisted, curved dorsad, apical process bifurcated into two branches of different length, with small triangular dorsal distal lobe twisted to right side of gonopore, and two lamellate processes subbasally, with pair of slim processes on manubrium; manubrium very broad in caudal view, dorsal apodeme deeply concaved and preatrium shallowly concaved; gonopore subapically on ventral side, somewhat twisted to left.

Diagnosis. The new species can be distinguished from other species by the presence of two stripes on the pronotum. The male genitalia are similar to those of P. punctata , but the pygofer side is shorter and serrated distally, the aedeagal shaft is curved dorsad and provided with much shorter subbasal processes and a pair of slim processes on the manubrium.

Measurement. Male length 4.50–4.60mm.

Material examined. Holotype ³, AUSTRALIA, Qld. Brisbane Forest Park, 07–27 xii 1995, coll. M.E. Irwin ( INHS) . Paratype: 1³, same data as holotype ( INHS) .

Etymology. The new specific epithet is derived from the Latin adjective “ tenuis ” which means “thin, slender”, referring to the paired slim processes on the aedeagal manubrium.

Figures

FIGURE 3. Pettya tenuis sp. nov. a. forewing; b. hind wing; c. 2S abdominal apodemes; d. genital capsule; e. f. apex of pygofer side; g. subgenital plate, style, connective and the 9th sternite; h. subgenital plate, dorsal view; i. style, dorsal view; j. apex of style; lateral view; k. connective; l. aedeagus, lateral view; m. aedeagus, caudal view.

FIGURE 4. a–e. Baya lata sp. nov.; f–j. Zinga longa sp. nov., specimen from Papua New Guinea; k–o. Zinga longa sp. nov., specimen from Australia; p–t. Pettya tenuis sp. nov.