A new leafhopper genus Geelus and 12 new species (Hemiptera, Cicadellidae Deltocephalinae) from Southern Africa Author Stiller, Michael text Zootaxa 2020 2020-06-03 4786 3 301 344 journal article 10.11646/zootaxa.4786.3.1 1175-5326 3876635 94F4B2D8-3941-493A-B9AA-80553E22759C Geelus drietanddraad sp.n. ( Figs 10F, 10G , 14 A–I) Diagnosis . Aedeagal shaft elongate, subapically with paired tooth and single ventral subapical tooth, base compress, apex rounded. Female sternite 7 with elongate, recessed rectangular ligula, in rounded, wide notch. Etymology . Afrikaans nouns in apposition, drie, three, tand, tooth, and draad , wire, for the arrangement of the paired and single tooth near the apex of the aedeagal shaft. Gender masculine. Male . Measurements . n=8. Length from apex of crown to apex of tegmina 4.24–4.56 mm . Crown median length 0.40–0.43 mm . Crown length next to eye 0.33–0.36 mm . Pronotum length 0.45–0.48 mm . Head width across eyes 1.38–1.45 mm . Pronotum width 1.30–1.37 mm . Ocellus diameter 39.1–48.4 μm; interocular distance 63.6– 72.9 µm . Apical angle of crown 118.8°±2.4°. Pygofer lobe . Process orientation, ventrad; process denticulation, edentate; process origin mediodorsal; process curvature, curved; anterior apodeme short, lateral. Pygofer lobe apex extended beyond apex of subgenital plate ( Figs 14C, 14E ). Anal tube . Tubular ( Fig. 14C ). Subgenital plate . Number of macrosetae, 4; medioposterior angle, right-angle; length: width 0.7–0.9; position of macrosetae on subgenital plate, distal half ( Fig. 14F ). Valve . Shape obtuse triangular, anterior margin concave ( Fig. 14F ). Style . Apophysis with subapical, ventral tooth; apophysis width relative to width across preapical lobe, about half width across preapical lobe; ratio length to width of apophysis 2.5–2.9 ( Fig. 14D ). Connective . Stem length relative to arm length, one third length of arms; stem width relative to width across arms, similar width ( Fig. 14G ). Aedeagus . Shaft thick; apex of shaft narrowly rounded, partially membranous; denticulation of shaft, small paired subapical lateral tooth, single, submedial, ventral tooth; curvature of shaft sublinear; gonopore apicoventrally; dorsal apodeme, in lateral view, elongate, acutely angled to shaft, preatrium short, rounded ( Figs 14A, 14B ). Female . Measurements . n=4. Length from apex of crown to apex of tegmina 4.47–4.80 mm . Crown median length 0.42–0.45 mm . Crown length next to eye 0.34–0.37 mm . Pronotum length 0.48 mm . Head width across eyes 1.45–1.50 mm . Pronotum width 1.38–1.40 mm . Ocellus diameter 42.0 μm; interocular distance 70.0 µm. Apical angle of crown 118.9°±1.5°. FIGURE 14. Geelus drietanddraad gen . n . & sp . n ., male and female genitalia, line drawings. A. Aedeagus, dorsally; B. Aedeagus, laterally; C. Genital capsule, dorsally; D. Style; E. Genital capsule, laterally; F. Subgenital plate; G. Connective; H. Valvifer 1, laterally; I. Sternite 7. Sternite 7 . Shape of posterior margin, short recessed, transverse, concave ligula ( Fig. 14I ). Valvifer 1 . Symmetrical or ventral margin produced narrowly ( Fig. 14H ). Material examined . Holotype male. South Africa , Northern Cape Province , CCDL26931 , Kamiesberg Garies , -30.462 , 18.132 , x.1976 , J.G. Theron ( SANC ) . Paratypes . 10♂ , 4♀ , ibid. holotype ( SANC ) . Remarks . The three teeth on the aedeagal shaft, i.e. paired subapical lateral and single ventral, submedial tooth, is only mirrored in G. haakdraad , that has similar lateral paired teeth, but a large dorsal, single disk-like structure. Geelus slangdraad and G. drietanddraad have overlapping localities, but are readily distinguished by the aedeagal shaft, i.e. in the former it is sinuous, thin and immaculate; in the latter it is sublinear, thick and with three teeth. The color of this species ( Figs 10F, G , male and female respectively) similar to other species, with amorphous brown markings in some cells of tegmina, and light markings in anterior margin of pronotum.