Guizhoura, Song & Yuan & Tan & Webb & Mera, 2025

Song, Yuehua, Yuan, Xiaojuan, Tan, Yusha, Webb, Mick D. & Mera, Diana R., 2025, A new unique leafhopper genus of Erythroneurini from China, with the description of one new species (Hemiptera, Cicadellidae, Typhlocybinae), Zootaxa 5642 (6), pp. 597-600 : 598

Guizhoura gen. nov.

urn:lsid:zoobank.org:act:7A23DB5E-79B4-4225-85E3-29A17681DFA0

Type species: Guizhoura huajianga Song, Yuan & Webb , sp. nov.

Diagnosis. Guizhoura gen. nov. has the following combination of characteristics to distinguish it from other genera of Erythroneurini : 1) anteclypeus with one single triangular dark marking near bottom; 2) pygofer lobes divided into upper and lower lobes, without macrosetae at basal ventral angle, several small bristles clustered on caudal margin of lobes; 3) bifurcated apical part of dorsal pygofer appendage handlike in lateral view; 4) aedeagal shaft with pair of fingerlike short protrusions arising from sub-apex.

Description. Body brown, orange, ochre or tan. Crown rounded, produced medially, narrower than pronotum; median length shorter than interocular width. Face with frontoclypeus long and narrow, anteclypeus broad. Pronotum nearly twice as long as vertex, almost transparent. Scutellum with obvious dark basal triangles. Forewing semitransparent, with dark base and without obvious spots or stripes, AA vein present; hind wing with RA vein present.

Male abdominal apodemes bladelike, extending top of 4th sternite.

Male genitalia. Pygofer lobe broadly rounded, divided into upper and lower lobes. Upper lobe with stout microtrichia and microsetae near dark caudal margin. Lower lobe caudal margin with small cluster of setae. Dorsal pygofer appendage movably articulated. Subgenital plate with expanded subbase, concave middle area, enlarged and dark apex; 3 basal macrosetae and numerous short stout microtrichia along upper margin in lateral view. Style with preapical lobe rounded; apex elongated and bifurcate, cheliform. Connective Y-shaped, without median anterior lobe, arms slender, stem very short. Aedeagus with pair of short processes subapically. Aedeagal shaft almost straight, slightly longer than preatrium and dorsal apodeme. Gonopore ventrad, apically.

Distribution. China (Guizhou).

Remarks. The new genus resembles Dentaneura ( Song et al. 2016) in the following morphological characteristics: head narrower than pronotum; scutellum with obvious dark brown basal triangles; pygofer lobe broad, basolateral area without macrosetae in distinct group; male abdominal apodemes bladelike, extending to anterior margin of 4th sternite. The new genus differs in having the crown and pronotum without distinct markings; the male pygofer without a stout seta near the base of the dorsal appendage; the style apex cheliform; the connective Y-shaped without a central lobe; and the different shape of subgenital plate. It is somewhat similar to Irenaneura ( Cao et al. 2012) in having the apical part of the style divided into two branches, but it can be distinguished by the roundly produced vertex; the uniformly colored forewing, without markings; and the bifurcated dorsal pygofer appendage.

Etymology. The genus is named after the locality of the type species, Guizhou, a province of southwest China characterized by typical karst landforms. The gender is feminine.