Hecaloidella borneoensis, 2021

Xu, Deliang, Webb, Michael D., Shang, Suqin & Zhang, Yalin, 2021, Review of the Pacific leafhopper genus Hecaloidella (Hemiptera: Cicadellidae Deltocephalinae: Selenocephalini) with description of sixteen new species, Zootaxa 4948 (3), pp. 381-403 : 390-391

H. borneoensis Zhang & Webb sp. nov.

Figs. 1H , 5A–K , 6A–B

Description. Body length (including tegmina), male: 6.2–6.4mm; female: 6.4mm.

Head, thorax and abdomen yellowish brown, sometimes darker brown on face; vertex with a subapical brickshaped mark each side of midline and another mark in same line touching anterior corner of eye, dark brown; forewing veins brown, more heavily marked with brown on some veins including a spot on apex of claval veins, on veins of fifth apical cell and on apical cells and on wing apex. Male genitalia with subgenital plate strongly incurved sub-basally with long digitate transversely crenulate apex, moderately long fine setae dorsolaterally. Connective with arms short and loop-shaped, stem long and extended into pair of long caudal processes. Aedeagus articulated with connective by short preatrium; shaft curved dorsally, elongate, cylindrical, with apex sinuate and strongly upturned, without processes, gonopore arising two thirds distance from base to apex of ventral margin.

Female pregenital sternite conical with posterior margin with a broad V-shaped incision medially.

Material examined. Holotype: ♂, Malaysia, Sarawak, Gunung Mulu National Park , 30-50m, elevation, 4°02′32.9″N, 114°48′46.7″E, 16-22.x.2006, J.R. Cryan & J.M. Urban ( INHS) . Paratypes, 1♂ 1♀, Brunei, Ulu Tem- burong, 300m, ii-iii.1982. M.C. Day ( BMNH) .

Etymology. This species is named after the island of its collection, Borneo.

Remarks. This species can be distinguished by the long aedeagal shaft with sinuate apex. The paratype male is paler with processes of the connective narrower.

Figures

FIGURE 1. Habitus images of Hecaloidella species; A, H. bimaculata (holotype); B, H. caudospina (holotype); C, H. nitida (holotype); D, H. nudapenis (holotype); E–G, H. pacifica (paratypes and immature); H, H. borneoensis (holotype); I, H. brevipenis (holotype); J, H. brevispina (holotype); K, H. longipenis (holotype); L, H. quadrispina (holotype); M, H. spinosa (holotype); N, H. brevis (holotype); O, H. brunnifacialis (topotype); P, H. knighti (holotype); Q, H. quadripicta (paratype); R, H. sandakanensis (holotype); S, H. singaporensis (paratype); T, H. brunifasciata (holotype).

FIGURE 5. H. borneoensis; A–B, habitus, dorsal and lateral view; C, face; D, head and thorax, anterior view; E, male genital capsule, lateral view; F, valve and subgenital plate, dorsal view; G, style and connective, dorsal view; H, style; I, aedeagus and connective, lateral view; J–K, aedeagus, anterior and caudal view.

FIGURE 6. Male genitalia and female pregenital sternite of H. borneoensis species group; A–B, H. borneoensis, A, style; B, connective and aedeagus, lateral view; C–D, H. brevipenis; C, style; D, aedeagus and connective, lateral view; E–F, H. brevispina; E, style; F, aedeagus and connective, lateral view; G–J, H. longipenis; G, style; H, subgenital pate and valve, ventral view; I, aedeagus and connective, lateral view; J, connective, dorsal view; K–O, H. quadrispina; K, style; L, connective, dorsal view; M, aedeagus, dorsal view; N, subgenital plate, dorsal view; O, aedeagus and connective, lateral view; P–U, H. spinosa; P, style; Q, connective, dorsal view; R, aedeagus, dorsal view; S, aedeagus and connective, lateral view; T, subgenital pate and valve, ventral view; U, female pregenital sternite.