Hecaloidella brunnifacialis, Shang & Zhang

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 : 397

H. brunnifacialis Shang & Zhang

Figs. 1O , 7H–L

H. brunnifacialis Shang & Zhang, 2012: 3–4 , fig 2.

Redescription. Body length (including tegmina), male: 5.2–5.3mm; female: 5.5–5.6mm.

Head and thorax dorsally yellow; face yellowish brown, darker brown dorsally; pronotum, mesonotum and scutellum with one small brown spot laterally; thorax and abdomen ventrally yellowish 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 apex and moderately long fine setae dorsolaterally. Connective with arms short and loop-shaped, stem long and extended into a long caudal process, bifurcate apically. Aedeagus separated from connective, without preatrium, with long basal apodeme with side lobes; shaft curved dorsally, elongate, cylindrical with a pair of apical and sub-basal dorsal processes, gonopore apical.

Female pregenital sternite with posterior margin produced medially ( Fig. 7L ).

Material examined. Holotype: ♂, Malaysia, Sarawak, Gunung Mulu National Park , W. Melinau Gorge, 150m, iii-iv.1978, Kerrangas, J.D. Holloway, Royal Geographical Society Mulu Expedition ( BMNH). Non-types: 3♂ 1♀, same data as holotype, NHMUK 010591761 ( BMNH); 1♀, same data as holotype except V.F. Eastop ( BMNH).

Remarks. This species can be distinguished by the number and arrangement of processes on the aedeagus. It is similar to H. quadripicta and H. singaporensis but in addition to the aedeagal differences it has the style lateral lobe less produced and the female pregenital sternite with the posterior margin produced medially rather than conically rounded.

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 7. Male genitalia and female pregenital sternite of H. quadripicta species group; A–G, H. brevis; A, aedeagus, lateral view; B, apex of aedeagus, lateral view; C, aedeagus, ventral view; D–E, connective, dorsal and lateral view; F, valve and subgenital plate, dorsal view; G, style; H–L, H. brunnifacialis; H, aedeagus and connective, lateral view; I, aedeagus, caudal view; J, style; K, connective, ventral view; L, female pregenital sternite; M–Q, H. knighti; M, aedeagus, ventral view; N, connective, ventral view; O, style; P, aedeagus and connective, lateral view; Q, female pregenital sternite.