Proekoides piketensis Stiller 1986
Creators: name: Stiller, Michael
name: Webb, Michael D.
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Cicadellidae
Proekoides
Proekoides piketensis

description: Proekoides piketensis Stiller 1986
(Figs 13L, 14 C, H, M, R)
Type material, holotype not examined.
Type locality. Holotype male, South Africa, Western Cape province, Piketberg mountain top; -34.84, 18.73; 17 Dec. 1981; J.G. Theron, leg.
Paratypes examined. 3♂♂ 1♀
South Africa, Western Cape province.
2♂♂; Piketberg mountain top; -34.84, 18.73; 17 Dec. 1981; J.G. Theron, leg.; CCDL28239; SANC.
1♂, 1♀; Piketberg; -32.90, 18.76; 19 Jan. 1983; J.G. Theron, leg.; CCDL28238; SANC.
Additional material examined.
South Africa, Western Cape province.
7♂♂, 5♀♀, 20 nymphs; Kruisementvlei & Wolf Kloof farms, Piketberg; -32.805, 18.662; 7 Feb. 2022; M.Stiller leg.; sweeping Metalasia sp. Asteraceae, Anthospermum sp. Rubiaceae, Erica sp. Ericaceae; CCDL 28621; SANC.
Diagnosis. Aedeagal shaft with anterior margin with large, paired subapical teeth, posterior margin with small, paired apical teeth, shaft apex as wide as median width; preatrium about as long as shaft.
Etymology. Named for the type locality. Gender feminine.
Description.
Male and female.
Color. As in Fig. 13L, description in Stiller (1986).
Morphology.
Tegmina. Male, length/width=2.13–2.80; female, length/width=2.05.
Hind wing. Male, length/width=3.24–3.36; female, length/width=3.23.
Tegmina-hind wing relation. Male, length tegmina/length hind wing=1.15; width tegmina/width hind wing=1.76–1.99; female, length tegmina/length hind wing=1.13; width tegmina/width hind wing=1.77.
Measurements.
Male (n=10). Apex of crown to apex of tegmina 3.02–3.19 mm; apex of crown to apex of abdomen 3.07–3.44 mm; crown length 0.70–0.73 mm; crown length next to eyes 0.42–0.45 mm; pronotum length 0.38–0.41 mm; head width 1.11–1.17 mm; pronotum width 1.02–1.09 mm; ocellus diameter 25–29 µm; interocular distance 68–77 µm; crown angle 73–98°; crown length/crown length next to eye=1.59–1.70; head width/pronotum width=1.06–1.10; ocellus diameter/interocular distance=0.34–0.41; crown length/pronotum length=1.73–1.88; pronotum length/ pronotum width=0.36–0.39. (Stiller 1986, interocular distance=width across disc of head, between medial margins of eyes 0.42–0.46 mm).
Female (n=6). Apex of crown to apex of tegmina 3.04–3.23 mm (in Stiller, 1986, 3.08–3.84 mm); apex of crown to apex of abdomen 3.63–4.01 mm (in Stiller, 1986, 3.24–3.92 mm); crown length 0.71–0.76 mm (in Stiller, 1986, 0.72–0.74 mm); crown length next to eyes 0.43–0.47 mm (in Stiller, 1986, 0.45–0.46 mm); pronotum length 0.39–0.41 mm (in Stiller, 1986, 0.39–0.40 mm); head width 1.14–1.20 mm (in Stiller, 1986, 1.13–1.15 mm); pronotum width 1.06–1.11 mm (in Stiller, 1986, 1.04–1.06 mm); ocellus diameter 22–29 µm; interocular distance 63–75 µm in Stiller, 1986, 0.44–0.46 mm); crown angle 75–79°; crown length/crown length next to eye=1.61–1.67; head width/pronotum width=1.07–1.09; ocellus diameter/interocular distance=0.30–0.45; crown length/pronotum length=1.75–1.93; pronotum length/pronotum width=0.36–0.37. (Stiller 1986, interocular distance incorrect for width across disc of head, between medial margins of eyes 0.42–0.46 mm).
Terminalia.
Male.
Segment 10. Length/width=1.11–1.24.
Pygofer lobe. Process strongly concave; 3–5 macrosetae.
Subgenital plate. Subgenital plate 1.19–1.38 times longer than wide.
Style. Greatest length/greatest width=4.00–4.64; length apophysis/greatest length=0.17–0.20; length base/ length greatest=0.35–0.39; angle of apophysis to sagittal plane 46–72° (Fig. 14R).
Connective. Greatest width across arms/greatest width across stem=1.77–2.09; greatest length of arms/greatest length of stem=1.05–1.27; angle of arms 78–84°; greatest length/greatest width=0.71–0.74 (Fig. 14M).
Aedeagus. Shaft sublinear in lateral view, gonopore apical, rounded, anterior margin (dorsal in Stiller 1986) with subapical paired elongate teeth (about as long as width of shaft at point of attachment), posterior margin (ventral in Stiller 1986) with paired, apical short teeth; development of teeth variable (Fig. 14C, H).
Female.
Sternite 7. V-shaped to arched incision (Fig. 13O). Greatest length/greatest width=0.48; greatest median length/ greatest lateral length=0.73, angle of notch 138°.
Valvula 1. Parallel-sided, apex acute, sculpture as in P. postspina sp. n.
Valvula 2. Serrate in distal half, slightly wider than base.
Valvula 3. Margin and submargin with 25–26 setae near apex (about 15 long setae 28–37 µm, about five shorter setae up to 25 µm).
Valvifer 1. Length/width=1.48–1.59 (n=1).
Valvifer 2. Length/width=2.58–2.74 (n=1); 8–9 pore-like structures.
Remarks. The combination of features of acute crown, marking of the dorsum of the head, size and specifically the aedeagus distinguish this species. The anterior margin of the aedeagal shaft with subapical, elongate, paired teeth, apex of shaft as wide as median width, posterior margin with short, apical, paired teeth.
description: Published as part of Stiller, Michael & Webb, Michael D., 2022, Leafhoppers of the Fynbos Biome of South Africa: Colistra, Proekes, Proekoides and a new genus (Insecta, Hemiptera, Cicadellidae, Deltocephalinae, Bonaspeiini), pp. 1-79 in Zootaxa 5199 (1) on pages 42-44, DOI: 10.11646/zootaxa.5199.1.1, http://zenodo.org/record/7251761