Roxasella uncinata, Lu & Dietrich & Webb & Zhang, 2025

Lu, Lin, Dietrich, Christopher H., Webb, M. D. & Zhang, Yalin, 2025, Revision of the Oriental Roxasella leafopper group: phylogeny, morphological evolution, biogeography, and description of 14 new species, Zoological Journal of the Linnean Society 204 (3) : -

Roxasella uncinata sp.nov.

( Fig. 19A–Q) (URN:LSID:ZOOBANK.ORG:ACT: 14155EB9-83E6-4FDA-8906-5A91133417E0)

Diagnosis: Crown with narrow black band at anterior margin. Style apophysis falcate apically. Aedeagus with shaf moderately short, with two pair of short processes, distal processes uncinate laterally and second pair laterally on shaf subapically. Without additional sclerite between connective and aedeagus. Fore tibia with dorsal setal arrangement of rows AD and PD 2 + 4. Connective moderately long. Fore femur IC with about nine setae, AV with five stout setae.

Description: Length (including tegmen): male 7.0 mm, female 7.5 mm.

Coloration: Body stramineous. Crown with narrow black band at anterior margin and broader ochraceous band between anterior corners of eyes. Pronotum stramineous anteriorly and laterally, greenish brown posteromedially.

Crown parabolic, anterior and posterior margins subparallel. Fore tibia with dorsal setal arrangement of rows AD and PD 2 + 4. Fore femur IC with about nine setae, AV with five stout setae.

Male genitalia: Pygofer with caudodorsal margin narrowly rounded. Style apophysis falcate apically, pre-apical lobe indistinct. Connective moderately long and slender, stem longer than arms. Aedeagus with dorsal apodeme nearly parallel and apically truncate in posterior view; shaf relatively short, evenly curved dorsad, in lateral view broad at base, narrowed distally and slightly expanded apically, in posterior view unevenly narrowed from base to apex, with two pair of distal and subapical moderately short processes, one pair extended posteroventrad, not diverging from shaf in posterior view, second pair laterally on shaf subapically, slightly diverging from shaf in posterior view, uncinate laterally; gonopore apical.

Female genitalia: Sternite VII posterior margin with short medial brown process.

Material examined: Holotype: ♂, Malaysia, Sabah, FMU10, Apin apin, Keningau (05°44.31 ′ 07N, 116°45.15 ′ 72E), 1217 m, 24 April–03 May 2016, coll. Z.S. Song ( NWAFU) . Paratypes: 7♂♂, same data as holotype ( NWAFU, NHM) .

Additional material: 4♀♀ (tentatively associated to males, see Remarks), same data as types .

Etymology: Te specific epithet, a Latinized adjective, refers to the uncinate (hook-like) aedeagal apex.

Remarks: Tis species resembles R. umbella in form and coloration but differs in having two pairs of relatively short aedeagal processes.