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

description: Proekoides postspina sp. n.
(Figs 15C–E, O, P, 16E, J, O, T, 17A–M, 18A–N)
Material examined.
Type locality. Holotype male, South Africa, Western Cape province; Dwarsrivier Farm Cedarberg SE Citrusdal; -32.45, 19.20; 13 Oct. 2002; M. Stiller, leg.; sweeping Phyllosma capensis Rutaceae; CCDL28235; SANC.
Type specimen: Holotype male, pinned, with genitalia in a separate microvial. Original label: “ R.S. A. Dwarsrivier / Farm Cedarberg / SE Clanwilliam / -32.486 19.269 / 13.x.2002 M. Stiller” “sweep / Phyllosma / capensis / Rutaceae ” “ SANC Pretoria / Dbase CCDL / 28235 (blue paper)”. SANC.
Paratypes. 4♂♂, 17♀♀; ibid. holotype, SANC, BMNH.
Diagnosis. Aedeagus with apex of shaft narrower than width of shaft medially; posterior margin of shaft medially with single tooth and paired subbasal teeth; preatrium about half as long as shaft.
Etymology. Named in Latin for all teeth on the posterior margin of the aedeagal shaft, post, after, behind, and spina, thorn. Gender feminine.
Description.
Male and female.
Color. Dark marking at apex of crown incised narrowly (Fig. 15C) or merged (Fig. 15D), size of marking in inner discal cell and inner anteapical cell large (Fig. 15C) or small (Fig.15D), female with marking in corresponding cells reduced (Fig. 15E).
Pronotum. Color variable, amorphous marks at anterior margin, behind eyes, sometimes light brown marking contiguous with longitudinal line on head (Fig. 15C–E).
Morphology.
Pronotum. Slightly narrower than head, without carina.
Tegmina. Four apical cells, anteapical cell with numerous reticulate veins, no appendix (male, Fig. 17L; female, Fig. 18M); male, length/width=2.21–2.43; female, length/width=2.02–2.19.
Hind wing. Male, narrowly elongated, anterior margin concave (Fig. 17M); length/width=3.40–3.56; female, narrow, elongated, costal margin slightly concave (Fig. 18N), length/width=3.17–3.27.
Tegmina-hind wing relation. Male, length tegmina/length hind wing=1.12–1.16; width tegmina/width hind wing=1.69–1.73; female, length tegmina/length hind wing=1.11–1.16; width tegmina/width hind wing=1.64–1.84.
Face. Clypeus with horizontal arcs, clypellus parallel-sided, extended beyond gena, color as in Fig. 15P.
Measurements.
Male (n=7). Apex of crown to apex of tegmina 3.26–3.48 mm, apex of crown to apex of abdomen 3.37–3.76 mm; crown length 0.66–0.71 mm; crown length next to eyes 0.42–0.45 mm; pronotum length 0.40–0.45 mm; head width 1.24–1.32 mm; pronotum width 1.14–1.22 mm; ocellus diameter 25–29 µm; interocular distance 70 µm; crown angle 84–88°; crown length/crown length next to eye=1.51–1.64; head width/pronotum width=1.08–1.10; ocellus diameter/interocular distance=0.35–0.42; crown length/pronotum length=1.51–1.72; pronotum length/ pronotum width=0.35–0.37.
Female (n=17). Apex of crown to apex of tegmina 3.34–3.62 mm, apex of crown to apex of abdomen 4.03–4.25 mm; crown length 0.69–0.72 mm; crown length next to eyes 0.44–0.46 mm; pronotum length 0.42–0.44 mm; head width 1.21–1.39 mm; pronotum width 1.17–1.25 mm; ocellus diameter 26–29 µm; interocular distance 63–75 µm; crown angle 80–90°; crown length/crown length next to eye=1.54–1.59; head width/pronotum width=1.00–1.15; ocellus diameter/interocular distance=0.36–0.45; crown length/pronotum length=1.59–1.67; pronotum length/ pronotum width=0.35–0.37.
Terminalia.
Male.
Segment 10. Incised deeply into pygofer, almost to base of pygofer, lateral margin convergent, sublinear, in dorsal view length/width=1.24–1.41 (n=5), compressed in lateral view (Fig. 17A, B).
Pygofer. Much longer than wide in lateral view, anterior margin oblique, anterior apodeme large; basolateral suture right-angled, extending about half-way into pygofer lobe, region distad of basolateral suture with few (approximately 4) narrow macrosetae (Fig. 17B); orientation of aedeagus in pygofer with shaft vertical in membranous recess in segment 10.
Pygofer lobe. Dorsal margin sublinear or convexly curvate, apex desclerotized, subapex sclerotized; process strongly concave; about 4 macrosetae near dorsomedial origin of pygofer process, 90–135 µm in length (Fig. 15B), detail of apex of lobe laterally in Fig. 17I and dorsally in Fig. 17J with process curvate, orientation lateroposteriorly.
Subgenital plate. Greatest length/greatest width=1.22–1.35. Style reaching about half way into subgenital plate (Fig. 17C).
Style. Greatest length/greatest width=4.02–4.26; length apophysis/greatest length=0.16–0.19; length base/ length greatest=0.35–0.38; angle of apophysis to sagittal plane 47–58° (Fig. 17D).
Connective. Greatest width across arms/width of apex of stem=2.16–2.41, length arms/length stem=0.87–0.95 angle of arms 83–88°; greatest length/greatest width=0.65–0.69 (Fig. 17K).
Aedeagus. Paired, digitate teeth at base of anterior margin of shaft, curvate laterad (Fig. 17E, G, H); apex about half as wide as medial width of shaft (Fig. 17G); anterior margin apically and subapically finely denticulate (Fig. 17F); posterior margin with single, median tooth and subbasal paired, close-set long teeth, about two times longer than median tooth. Gonopore ovoid, posteriorly between apex and subapex. Dorsal apodeme reduced. Preatrium elongate, slightly shorter than shaft, in line with aedeagal shaft; anterior margin at apex with lobulate process (Fig. 17G).
Female.
Sternite 7. Isosceles trapezoid; distal width/basal width=0.67–0.74, greatest length/greatest width=0.47–0.49), lateral margins sublinear; posterior margin with wide notch, greatest median length/greatest lateral length=0.67– 0.74; angle of notch=127–143°. (Figs 15O, 18A).
Valvula 1. Parallel-sided, apex acute (Fig. 18F); dorsal sculpture apically valvate, commonly elongate, acutely angled to margin (Fig. 18K), sculpture strigate basally, parallel to margin (Fig. 18L).
Valvula 2. Apex slightly wider than base, distal dorsal margin serrate (Fig. 18G), with shallow, wide trough, with fine subserration, short, narrow rounded teeth, sculpture and serration at apex and subapex as in Figs 18I, 18J respectively.
Valvula 3. Macrosetae number 15–20 at apex, two thirds to three quarter are 27–33 µm long, the rest are shorter setae, up to 25 µm (Fig. 18H).
Valvifer 1. Length to width 1.35–1.57 (n=4) (Fig. 18B), in dorsal view fused medially, as in Fig. 18C.
Valvifer 2. Length to width 2.63–2.90 (n=4) (Fig. 16D), 8–10 pore-like structures near base (Fig. 18E).
Remarks. This new species is similar in size and coloration to that of the four species described by Stiller (1986), with the paired teeth at the base of the anterior margin of the male aedeagal shaft. The angle of the crown in males at 84–88°, females at 80–90°, is near that of P. koebergis (76–96°) and P. cedarbergensis (76–81°, male and female) and wider than in P piketensis (75–77°, males) and P. hawekwae (68–69°, males). For comparison, male genitalia of four species as in Stiller 1986 are included in Fig. 16: Aedeagus laterally, dorsally, connective and style, respectively for P. hawekwae (Fig. 16A, F, K, P), P. cedarbergensis (Fig. 16B, G, L, Q), P. piketensis (Fig. 16C, H, M, R), P. koebergis (Fig. 16D, I, N, S). The expanded apex of the aedeagus of P. cedarbergensis resembles the apex in C. bucapitatus.
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 44-47, DOI: 10.11646/zootaxa.5199.1.1, http://zenodo.org/record/7251761