Wyuchiva elegantula, Zhang & Wei & Webb, 2006

Zhang, Yalin, Wei, Cong & Webb, M. D., 2006, A new stegelytrine leafhopper genus from China and Thailand (Hemiptera: Cicadellidae), Zootaxa 1333 (1), pp. 55-62 : 58-60

Wyuchiva elegantula sp. n.

(Figs 1–17)

Diagnosis. Distinguished from the following species by its slightly smaller size, less curved processes of the male Xth segment, and broader base of the aedeagus ventrally in lateral view.

Descriptions. Body length (incl. forewings): ♂ 4.9mm (x4), ♀ 5.0–5.2mm (x7).

Male: generally yellowish brown, lateral areas of face, pronotum, basal triangles of scutellum, darker; vertex sometimes reddish brown; two nearly contiguous irregular transverse bands anteriorly on head, area between inner margin of eye and clypeus, disc of scutellum, and large patch on clavus, yellowish white; clypellus dark brown apically; fore and mid legs pale yellow; forewing with some pale areas in distal cells. Female: generally pale yellow; gena, pronotum laterally, basal triangles of scutellum brown; clypellus dark brown apically; forewing: clavus and adjacent area of wing and apical area of wing, yellowish brown, remainder of wing adjacent costal margin hyaline; some pale patches in distal cells and clavus heavily marked with yellow to whitish yellow.

Male genitalia: lateral internal pygofer process elongate, slightly upturned apically and tapered to apex. Paramere with a straight digitate apical process, tapered to apex; inner margin subapically with small heel-like process and large, strongly upturned, apically crenulate process, separated by hyaline band. Aedeagal shaft moderately robust, laterally compressed with subapical flangelike expansion on each side; apex bifurcate, basal apodeme bifurcate with arms curved laterally; base moderately broad in lateral view.

Material. Holotype: ♂ ( BPBM), THAILAND: CHIANG MAI PROV.: Doi Setchep , (water margin), 4.iv.1958, T. C. MAA . Paratypes: THAILAND, CHIANG MAI PROV.: Doi Setchep, T.C. Maa, 1 male, 3 females, 1–5.iv.1958 ; 1 male, 1 female, 28–31.iii.1958 ; 2

females, 4.iv.1958 (water margin); 1 female, 1–8.iv.58; Doi Pui, T.C. Maa, 1 male, 2.iv.58 ( BPBM, BMNH, NWAFU) .

Etymology. Named for its relatively delicate body form.

Distribut ion. Thailand.

Biology. See Introduction.