Nesoclutha Evans, 1947

Zhang, Yalin & Lu, Lin, 2011, Taxonomy of the vector leafhopper genus Nesoclutha Evans (Hemiptera: Cicadellidae: Deltocephalinae) in China, with description of a new species, Zootaxa 2763, pp. 61-65 : 62

publication ID	https://doi.org/ 10.5281/zenodo.276835
DOI	https://doi.org/10.5281/zenodo.6186391
persistent identifier	https://treatment.plazi.org/id/03CDC464-B572-FFBF-14B3-FF41F18BE53B
treatment provided by	Plazi
scientific name	Nesoclutha Evans, 1947
status

Treatment

Genus Nesoclutha Evans, 1947 View in CoL

Nesoclutha Evans, 1947: 126 View in CoL ; Knight, 1975: 197; Day & Fletcher, 1994: 1220. Type species: Nesoclutha obscura Evans, 1947 View in CoL . Irinula Ribaut, 1948: 58 View in CoL ; 1952: 60; Linnavuori, 1960: 330; Grylls, 1963: 143; synonymised by Vilbaste, 1976: 28. Type species: Cicadula erythrocephalus Ferrari, 1882 .

Description. Head wider than pronotum. Vertex glabrous, longer medially than next to eyes, slightly shorter than interocular width; disc somewhat flat; anterior margin shagreen, roundly produced ( Fig. 1 View FIGURE 1 A). Face ( Fig. 1 View FIGURE 1 B) wider than long; margin of gena adjacent to clypellus much narrower than ocell-ocular area; latero-frontal sutures extending above antennae to ocelli; clypellus long, narrow, exceeding apex of lora, sides parallel; antennal ledges weak. Ocelli situated on frontal margin of vertex next to corresponding eye, separated from each eye by 1.5 times to twice own diameter. Pronotum large, anterior margin roundly produced, posterior margin shallowly concave ( Fig. 1 View FIGURE 1 A); lateral margins short, non-carinate ( Fig. 1 View FIGURE 1 C). Forewings ( Fig. 1 View FIGURE 1 F) elongate, exceeding abdomen; appendix wide; two subapical cells and four apical cells. Setal pattern at apex of hind femora 2, 2, 1.

Male genitalia. Pygophore ( Fig. 1 View FIGURE 1 D, E) wider than long; lateral lobes narrowly rounded posteriorly, emarginate dorsally to near midlength, tapering caudally; posterior margin covered with spicules and spines; macrosetae plumose, over posterior half of lateral surfaces. Tenth segment membranous ( Fig. 1 View FIGURE 1 D). Valve broadly triangular ( Fig. 1 View FIGURE 1 I). Subgenital plates triangular ( Fig. 1 View FIGURE 1 I), reaching apex of pygophore; uniseriate row of macrosetae along ventrolateral margin ( Fig. 1 View FIGURE 1 D). Styles with apical process finger-like, turned slightly laterally; lateral lobe well developed, bearing setae dorsally ( Fig. 1 View FIGURE 1 I). Connective Y-shaped, arms as long as stem, with distinct membrane marginally ( Fig. 1 View FIGURE 1 J). Aedeagus with shaft short, apex acute, directed dorsally ( Fig. 1 View FIGURE 1 D, H); gonopore large, subapical on ventral surface ( Fig. 1 View FIGURE 1 J).

Distribution. China, Australia, New Zealand, Turkey, Iran, Japan, Europe, Africa, Southern Asia, Indonesia, New Caledonia.

Remarks. Nesoclutha is similar to Balclutha (Macrostelini) but can be distinguished from the latter by the head wider than pronotum and vertex obviously longer medially than next to eyes and aedeagal shaft more robust than latter ( Fig. 1 View FIGURE 1 A, H), with gonopore large and subapical on ventral margin ( Fig. 1 View FIGURE 1 J). It differs from all members of the tribe in China by the laterally membranous connective ( Fig. 1 View FIGURE 1 J).

Kingdom	Animalia
Phylum	Arthropoda
Class	Insecta
Order	Hemiptera
Family	Cicadellidae