Idioscopus Baker, 1915

Wang, Xian-Yi, Wang, Jia-Jia, Dai, Ren-Huai & Webb, Mick D., 2022, Descriptions of two new Idiocerini leafhoppers of the genus Idioscopus (Hemiptera, Cicadellidae) from China, ZooKeys 1095, pp. 97-110 : 97

Genus Idioscopus Baker, 1915

Type species.

Idiocerus clypealis Lethierry, 1889 by original designation.

Diagnosis.

The genus Idioscopus can be distinguished from other genera of Idiocerini by the combination of the following features: style with slender setae on dorsal margin, subapex wide and flat on later on lateral view, aedeagal shaft with one or two pairs of processes.

Description.

Body small (♂ 3.10-5.50 mm; ♀ 3.30-5.50 mm). Head wider than pronotum. Head and thorax shagreen or crown and frontoclypeus dorsad of ocelli finely transversely rugose. Face as long as wide to slightly longer than wide; frontoclypeus with lateral margins extending to just above antennae; anteclypeus broad distally, longer than wide, sometimes exceeding apex of gena; rostrum in some species variably expanded apically; ocelli placed closer to midline than to the corresponding eye. Length of visible mesonotum nearly as long or longer than pronotum and crown together. Forewing with four apical and usually two (open or closed) subapical cells. Hind femur with 2 + 1 apical setae.

Male genitalia. Male pygofer in lateral view triangular its height more than its width; dorsoposterior lobe differentiated by dorsoanterior vertical cleft; dorsal anal collar present joined to pygofer; anal tube comprising a single segment, short or long; with or without a basiventral process. Subgenital plate elongate, curved dorsad, with long hair-like marginal setae. Connective Y- or T-shaped, short. Style elongate, apophysis curved dorsally, inner margin crenulate or dentate, outer margin distally with a row of hair-like setae or with a tuft of stout setae. Aedeagus with shaft elongate, either slightly curved dorsally or sinuate, laterally compressed, with one or two pairs of apical processes, gonopore apical on ventral surface; dorsal apodeme well developed, apically expanded laterally.

Distribution.

African, Oriental, and Palaearctic regions.

Checklist of Idioscopus species from China

(See Xue et al. 2017 for complete synonymy)

I. bihamulus sp. nov.

I. clypealis (Lethierry, 1889: 252, Idiocerus )

I. taiwanus Huang & Maldonado-Capriles, 1992: 5-6, syn. nov.

I. furcaprocessus Wang, Wang, Zhou & Dai, 2021: 376, fig. 1

I. longiprocessus Wang, Wang, Zhou & Dai, 2021: 378, fig. 2

I. myrica Wang & Dai, 2018: 12-13, figs 1-10

I. nitellicus Kuoh & Fang, 1985: 190, figs 8-16

I. nitidulus (Walker, 1869: 322, Iassus )

Idiocerus niveosparsus Lethierry, 1889: 160; Matsumura, 1912: 322 (Taiwan)

I. recurvatus Kuoh & Fang, 1985: 189, figs 1-7

I. serratastylus Wang, Wang, Zhou & Dai, 2021: 378, fig. 3

I. ventrispinus sp. nov.