Proekoides koebergis Stiller 1986

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), Zootaxa 5199 (1), pp. 1-79 : 41-42

Proekoides koebergis Stiller 1986

( Figs 15K , 16D, I, N, S , 32B )

Type material, holotype not examined.

Type locality. Holotype male, South Africa, Western Cape province, Koeberg, north Melkbosstrand , -33.64, 18.43, 6 Dec. 1977, J.G. Theron, leg.

Paratypes. 2♂

South Africa, Western Cape province:

1♂; Bontebok National Park , Swellendam; -34.05, 20.47; 11 Dec. 1973; J.G. Theron, leg.; CCDL28240 ; SANC .

1♂; Koeberg; -33.64, 18.43; 6 Dec. 1977; J.G. Theron, leg.; CCDL28241 ; SANC .

Additional material examined.

South Africa, Western Cape province:

1♂; Dwarsrivier Farm, Cedarberg, SE Citrusdal; -32.45, 19.20; 10-15 Oct. 2002; M. Stiller, leg.; sweeping grass and forbs, regrowth after fire; CCDL18323 ; SANC

2♂♂, 1♀; Cedarberg wilderness #1; -32.40, 19.04; 14 Dec. 2016; M. Stiller, leg.; sweeping Eriocephalus sp. , Asteraceae ; CCDL26713 ; SANC .

8♂♂, 3♀♀, 12 nymphs, De Pakhuys farm, Clanwilliam, -32.118, 19.068; 6 Feb. 2022; M.Stiller leg.; sweeping Agathosma crenulata Rutaceae ; CCDL28620 ; SANC .

13♂♂, 7♀♀, 4 nymphs; Lansrivier farm, Kammanassie Berg; -33.663, 22.959; 17 Feb. 2022; M.Stiller leg.; sweeping Erica densifolia Ericaceae ; CCDL28619 ; SANC .

15♂♂, 5♀♀, Lansrivier farm, Kammanassie Berg; -33.663, 22.959; 17 Feb. 2022; M.Stiller leg.; sweeping Agathosma ovata Rutaceae common, Phylica paniculata Rhamnaceae rare; CCDL 28617; SANC.

Diagnosis. Aedeagal shaft with anterior margin with large, paired apical teeth, posterior margin with short, paired medial teeth, shaft apex not expanded anteriad; preatrium about as long as shaft.

Etymology. Named for the type locality. Gender feminine.

Description.

Male and female.

Color. As in Fig. 15K , description in Stiller 1986.

Morphology.

Tegmina. Male, length/width=2.05; female, length/width=2.11.

Hind wing. Male, length/width=2.77; female, length/width=2.77.

Tegmina hind wing relation. Male, length tegmina/length hind wing=1.16; width tegmina/width hind wing=1.57; female, length tegmina/length hind wing=1.18; width tegmina/width hind wing=1.54.

Measurements.

Male (n=39). Apex of crown to apex of tegmina 3.29–3.82 mm ( Stiller 1986, 2.80–3.16 mm); apex of crown to apex of abdomen 3.41–3.87 mm ( Stiller 1986, 3.00– 3.56 mm); crown length 0.71–0.94 mm; crown length next to eyes 0.45–0.51 mm; pronotum length 0.41–0.45 mm; head width 1.24–1.31 mm; pronotum width 1.12–1.21 mm ( Stiller 1986, 0.76–1.10 mm); ocellus diameter 27–29 µm; interocular distance 65–93 µm; crown angle 68–84°; crown length/crown length next to eye=1.59–1.89; head width/pronotum width=1.07–1.11; ocellus diameter/interocular distance=0.29–0.44; crown length/pronotum length=1.74–2.12; pronotum length/pronotum width=0.36–0.38. ( Stiller 1986, interocular distance=width across disc of head, between medial margins of eyes 0.42–0.52 mm).

Female (n=17). Apex of crown to apex of tegmina 3.27–3.83 mm ( Stiller 1986, 2.96–3.32 mm); apex of crown to apex of abdomen 3.85–4.34 mm ( Stiller 1986, 3.64–4.00 mm); crown length 0.74–0.96 mm; crown length next to eyes 0.47–0.53 mm; pronotum length 0.41–0.46 mm; head width 1.25–1.33 mm; pronotum width 1.14–1.22 mm ( Stiller 1986, 1.10–1.14 mm); ocellus diameter 26–29 µm; interocular distance 65–87 µm; crown angle 67– 85°; crown length/crown length next to eye=1.53–1.84; head width/pronotum width=1.08–1.12; ocellus diameter/ interocular distance=0.30–0.44; crown length/pronotum length=1.75–2.14; pronotum length/pronotum width=0.36– 0.38. ( Stiller 1986, interocular distance=width across disc of head, between medial margins of eyes 0.50 mm).

Terminalia.

Male.

Segment 10. Length/width=1.11.

Pygofer lobe. Process strongly concave; 3–4 macrosetae, 80–140 µm in length.

Subgenital plate. Subgenital plate 1.13–1.46 times longer than wide.

Style. Greatest length/greatest width=4.20–4.99; length apophysis/greatest length=0.18–0.31; length base/ length greatest=0.25–0.39; angle of apophysis to sagittal plane 48–51° ( Fig. 16S ).

Connective. Greatest width across arms/greatest width across stem=2.11–2.18; greatest length of arms/greatest length of stem=1.00–1.21; angle of arms 80–83°; greatest length/greatest width=0.66–0.69 ( Fig. 16N ).

Aedeagus. Sublinear in lateral view, anterior margin with pair of apical teeth and pair of processes basally; posterior margin (ventrally, in Stiller 1986) with pair of teeth at mid-length; development of all teeth show variation; gonopore pear-shaped ( Fig. 16D, I ).

Female.

Sternite 7. Greatest length/greatest width=0.47; greatest median length/greatest lateral length =0.71, angle of notch 140°.

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 24 setae near apex (about 15 long setae 27–30 µm, about nine shorter setae up to 25 µm).

Valvifer 1. Length/width=1.46–1.66 (n=1).

Valvifer 2. Length/width=2.75–2.81 (n=1); seven 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 apical paired teeth, apex of shaft about as wide as median width, posterior margin with short median paired teeth. This is the only species with apical anterior paired teeth. In P. hawekwae , P. cedarbergensis and P. piketensis the anterior teeth are subapical. In P. postspina sp. n. all teeth are on the posterior margin. The specimen from Dwarsrivier ( Fig. 13F ) with atypical color pattern of the head, but apical anterior and subapical posterior tooth on the aedeagal shaft. Specimens from De Pakhuys and Lansrivier have the shaft more uniformly tubular, and the former with long posterior teeth. Distribution map and model in Fig. 32B .

Figures

FIGURE 13. Colistra acapitatus sp. n., line drawings, male. A–F, aedeagus laterally. A, Groenkol specimen. B, Uitsig specimen. C, Klondyke specimen. D, Seekoevlei specimen. E, Sanddrift specimen. F, Aggenbachskraal specimen. G, aedeagus, apex, posteriorly, Uitsig specimen. H, aedeagus, apex, laterally, Uitsig specimen. I, aedeagus, apex, anteriorly, Uitsig specimen. J, aedeagus, shaft, anteriorly, Seekoevlei specimen. K, aedeagus, shaft, posteriorly, Seekoevlei specimen. L, style. M, aedeagus anteriorly, Arniston specimen. N, aedeagus posteriorly, Arniston specimen. O, connective. P, connective. Q, tegmina. R, hind wing.

FIGURE 15. Proekoides species, habitus views, dorsally, face and sternite 7. A, B, Proekoides sp. A, male, Wiedouw specimen. B, female, Groenkol specimen. C–E, Proekoides postspina sp. n., C, male, Dwarsrivier specimen, marking at apex of crown with gap. D, male, Dwarsrivier specimen, marking at apex of crown solid. E, female, Dwarsrivier specimen. F, Proekoides sp., male, Dwarsrivier specimen. G–I, P. cedarbergensis Stiller, 1986, G, female, Clanwilliam specimen. H, male, Clanwilliam specimen. I, male, dark marking, Clanwilliam specimen. J, P. hawekwae Stiller, 1986, male. K, P. koebergis Stiller, 1986, female, Koeberg specimen. L, P. piketensis Stiller 1986, female, Piketberg specimen. M, nymph, Du Toits Kloof specimen. N, P. piketensis Stiller, 1986, sternite 7. O, P. postspina sp. n., sternite 7. P, P. postspina sp. n., face. A–C, M, scale=1 mm.

FIGURE 16. Proekoides species, line drawings, male genitalia. A–E, aedeagus, laterally. A, P. hawekwae Stiller, 1986. B, P. cedarbergensis Stiller, 1986. C, P. piketensis Stiller, 1986. D, P. koebergis Stiller, 1986. E, P. postspina sp. n. F–J, aedeagus, posteriorly. F, P. hawekwae Stiller, 1986. G, P. cedarbergensis Stiller, 1986. H, P. piketensis Stiller, 1986. I, P. koebergis Stiller, 1986. J, P. postspina sp. n. K–O, connective. K, P. hawekwae Stiller, 1986. L, P. cedarbergensis Stiller, 1986. M, P. piketensis Stiller, 1986. N, P. koebergis Stiller, 1986. O, P. postspina sp. n. P–T, style. P, P. hawekwae Stiller, 1986. Q, P. cedarbergensis Stiller, 1986. R, P. piketensis Stiller, 1986. S, P. koebergis Stiller, 1986. T, P. postspina sp. n.

FIGURE 32. Potential natural distribution models, Proekoides species. A, P. cedarbergensis Stiller, 1986. B, P. koebergis Stiller, 1986. C, Proekoides species merged in one model.