Hecaloidella spinosa, 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 : 396

H. spinosa Zhang & Webb sp. nov.

Figs. 1M , 6P–U

Description. Body length (including tegmina), male: 5.2mm; female: 5.2mm.

Vertex pale yellow with a pair of short reddish brown longitudinal bars joined basally. Face brownish yellow. Pronotum brownish yellow, paratype with darker brown irroration. 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 constricted sub-basally with a long digitate apex with moderately long fine setae. Connective with arms long and appressed; stem short with a pair of apical spines. Aedeagus firmly attached to connective; preatrium with a long ventral process, distally bifurcate; shaft elongate with a pair of widely divergent apical processes, gonopore apical.

Female with pregenital sternite strongly produced medially ( Fig. 6U ).

Material examined. Holotype: ♂, Brunei, Ulu Temburong Ridge, ii-iii,1982, M.C. Day, NHMUK 010591778 ( BMNH) . Paratype: 1♀, Brunei, Ulu Temburong, 300m ., ii-iii.1982, M.C. Day ( BMNH) .

Etymology. This species is named after the pair of spines on the apex of connective stem.

Remarks. This species can be distinguished from all other Hecaloidella species by the unique shape of the connective and aedeagus (see description) and in the female by the greatly prolonged pregenital sternite posteromedially.

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 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.