Elginus matarei, Stiller, M., 2009

Stiller, M., 2009, Revision of Elginus Theron (Hemiptera: Cicadellidae: Deltocephalinae) with the description of two new genera and comments on the grassland leafhopper fauna in South Africa, Zootaxa 2135 (1), pp. 1-56 : 19-20

Elginus matarei sp.n.

( Figs 25 , 66 , 93 , 120 , 145 , 170 , 195 , 221 , 247 , 266 )

Diagnosis. Entire aedeagus asymmetrical, shaft with two apical teeth, one subapical tooth and one medial process.

Etymology. Named for the collector.

Colour. Dark wedge-shape markings on vertex and more rectangular marking more posteriad and laterad ( Fig. 25 ).

Dimensions. Male (n = 8). Lengths: apex of vertex to apex of tegmina 3.2–3.7 mm, apex of vertex to apex of abdomen 2.9–3.2 mm; vertex medially 0.5–0.6 mm; vertex laterally next to eye 0.3–0.4 mm; pronotum medially 0.4 mm; scutellum medially 0.3–0.4 mm. Maximum widths: head 1.0– 1.1 mm; pronotum 0.8–0.9 mm; scutellum 0.4–0.5 mm. Ocellus: diameter 25–35 µm; ocellocular distance 41–55 µm.

Abdominal apodemes. Male. Fig. 266 .

Genital capsule. Male. Aedeagus with shaft, preatrium, atrium, dorsal apodeme entirely asymmetrical; apex with two unpaired apical spines; subapical lateral triangular spine; gonopore ventral, at base of apical spines; shaft medially with twisted process; shaft long, 2.1 times as long as dorsal apodeme ( Figs 66 , 93 ). Connective as in Fig. 120 . Plate apex truncate, slightly concave; medial margins separated by about 15°; 4–6 uniseriate macrosetae ( Fig. 145 ). Pygofer lobe narrowly rounded ( Figs 170 , 195 ). Style apophysis curved; almost reaching apex of plate; apophysis 0.4 times as long as median arm ( Fig. 221 ).

Dimensions. Female (n = 2). Lengths: apex of vertex to apex of tegmina 3.4–3.5 mm, apex of vertex to apex of abdomen 3.3–3.6 mm; vertex medially 0.6 mm; vertex laterally next to eye 0.5 mm; pronotum medially 0.4 mm; scutellum medially 0.3 mm. Maximum widths: head 1.0– 1.1 mm; pronotum 0.9 mm; scutellum 0.5 mm. Ocellus: diameter 28 µm; ocellocular distance 48–57 µm.

Genital capsule. Female. Sternite VII with wide, rounded notch; four pillars between sternite VII and VIII ( Fig. 247 ). Third valvula with two apical setae only marginally longer, but distinctly thicker, than successive setae (23.2 µm long 3.9 µm diameter, 20.6 µm long 3.2 µm diameter). Second valvula with irregular, rounded and pointed serration.

Material examined. Holotype male. South Africa, Western Cape. Herold , 33°50ʹS 22°27ʹE, 19.ii.1971, R. Mataré ( SANC) . Paratypes (8♂, 3♀). Western Cape . 7♂, 2♀, ibid. holotype ; 1♂, 1♀, Knysna , (34°02ʹS 23°02ʹE), 15.i.1979, C. Kok and S.J. van Tonder ( SANC, USIC) .

Remarks. The extreme asymmetry of the aedeagus, with the spines on or near the apex of the shaft facilitates recognition of this species, although dorsal or lateral orientation becomes difficult to recognize unless the aedeagus, connective, style and pygofer are examined as a whole. The localities where it was collected are in the Fynbos Biome, probably in two or three vegetation units that contain a well developed grass component, consisting of 24 species of Poaceae ( Mucina & Rutherford, 2006).

Figures

FIGURES 25–32. Elginus species, habitus views. Fig. 25, E. matarei, male; Fig. 26, E. minutulus, male; Fig. 27, E. oriens, male; Fig. 28, E. oriens, female; Fig. 29, E. saltus (Naudé), male; Fig. 30, E. saltus (Naudé), female; Fig. 31, E. semialatus, male; Fig. 32, E. semialatus, nymph.

FIGURES 51–77. Elginus species, male, aedeagus, dorsal or ventral view. Fig. 51, E. acutus, ventral view; Fig. 52, E. bispinus, dorsal view; Fig. 53, E. cavatus, dorsal view; Fig. 54, E. contradens, dorsal view; Fig. 55, E. cultellus, curved aedeagus, dorsal view; Fig. 56, E. cultellus, straight aedeagus, dorsal view; Fig. 57, E. denticulatus, dorsal view; Fig. 58, E. dexteruncus, dorsal view; Fig. 59, E. eccentricus, dorsal view; Fig. 60, E. extrinsecus, ventral view; Fig. 61, E. falcatus, dorsal view; Fig. 62, E. furcillatus, dorsal view; Fig. 63, E. latus, dorsal view; Fig. 64, E. levilobus, ventral view; Fig. 65, E. malotiensis, dorsal view; Fig. 66, E. matarei, ventral view; Fig. 67, E. minutulus, dorsal view; Fig. 68, E. oriens, dorsal view; Fig. 69, E. recavus, dorsal view; Fig. 70, E. saltus (Naudé), dorsal view; Fig. 71, E. semialatus, with paired process, ventral view; Fig. 72, E. semialatus, single process, ventral view; Fig. 73, E. theroni, dorsal view; Fig. 74, E. tortuosus, dorsal view; Fig. 75, E. tubulus, dorsal view; Fig. 76, E. unispinus, ventral view; Fig. 77, E. vulgaris, dorsal view.

FIGURES 78–104. Elginus species, male, aedeagus, lateral view. Fig. 78, E. acutus; Fig. 79, E. bispinus; Fig. 80, E. cavatus; Fig. 81, E. contradens; Fig. 82, E. cultellus, curved aedeagus; Fig. 83, E. cultellus, straight aedeagus; Fig. 84, E. denticulatus; Fig. 85, E. dexteruncus; Fig. 86, E. eccentricus; Fig. 87, E. extrinsecus; Fig. 88, E. falcatus; Fig. 89, E. furcillatus; Fig. 90, E. latus; Fig. 91, E. levilobus; Fig. 92, E. malotiensis; Fig. 93, E. matarei; Fig. 94, E. minutulus; Fig. 95, E. oriens; Fig. 96, E. recavus; Fig. 97, E. saltus (Naudé); Fig. 98, E. semialatus, with paired process; Fig. 99, E. semialatus, single process; Fig. 100, E. theroni; Fig. 101, E. tortuosus; Fig. 102, E. tubulus; Fig. 103, E. unispinus; Fig. 104, E. vulgaris.

FIGURES 105–130. Elginus species, male, connective, Fig. 105, E. acutus; Fig. 106, E. bispinus; Fig. 107, E. cavatus; Fig. 108, E. contradens; Fig. 109, E. cultellus, curved aedeagus; Fig. 110, E. cultellus, straight aedeagus; Fig. 111, E. denticulatus; Fig. 112, E. dexteruncus; Fig. 113, E. eccentricus; Fig. 114, E. extrinsecus; Fig. 115, E. falcatus; Fig. 116, E. furcillatus; Fig. 117, E. latus; Fig. 118, E. levilobus; Fig. 119, E. malotiensis; Fig. 120, E. matarei; Fig. 121, E. minutulus; Fig. 122, E. oriens; Fig. 123, E. recavus; Fig. 124, E. semialatus, with paired process; Fig. 125, E. semialatus, single process; Fig. 126, E. theroni; Fig. 127, E. tortuosus; Fig. 128, E. tubulus; Fig. 129, E. unispinus; Fig. 130, E. vulgaris.

FIGURES 131–156. Elginus species, male, plate, Fig. 131, E. acutus; Fig. 132, E. bispinus; Fig. 133, E. cavatus; Fig. 134, E. contradens; Fig. 135, E. cultellus; Fig. 136, E. denticulatus; Fig. 137, E. dexteruncus; Fig. 138, E. eccentricus; Fig. 139, E. extrinsecus; Fig. 140, E. falcatus; Fig. 141, E. furcillatus; Fig. 142, E. latus; Fig. 143, E. levilobus; Fig. 144, E. malotiensis; Fig. 145, E. matarei; Fig. 146, E. minutulus; Fig. 147, E. oriens; Fig. 148, E. recavus; Fig. 149, E. saltus (Naudé); Fig. 150, E. semialatus, with paired process; Fig. 151, E. semialatus, single process; Fig. 152, E. theroni; Fig. 153, E. tortuosus; Fig. 154, E. tubulus; Fig. 155, E. unispinus; Fig. 156, E. vulgaris.

FIGURES 157–179. Elginus species, male, pygofer, dorsal view. Fig. 157, E. acutus; Fig. 158, E. cavatus; Fig. 159, E. contradens; Fig. 160, E. cultellus; Fig. 161, E. denticulatus; Fig. 162, E. dexteruncus; Fig. 163, E. eccentricus; Fig. 164, E. extrinsecus; Fig. 165, E. falcatus; Fig. 166, E. furcillatus; Fig. 167, E. latus; Fig. 168, E. levilobus; Fig. 169, malotiensis; Fig. 170, E. matarei; Fig. 171, E. minutulus; Fig. 172, E. oriens; Fig. 173, E. recavus; Fig. 174, E. semialatus, with paired process; Fig. 175, E. theroni; Fig. 176, E. tortuosus; Fig. 177, E. tubulus; Fig. 178, E. unispinus; Fig. 179, E. vulgaris.

FIGURES 180–205. Elginus species, male, pygofer, lateral view. Fig. 180, E. acutus; Fig. 181, E. bispinus; Fig. 182, E. cavatus; Fig. 183, E. contradens; Fig. 184, E. cultellus, curved aedeagus; Fig. 185, E. cultellus, straight aedeagus; Fig. 186, E. denticulatus; Fig. 187, E. dexteruncus; Fig. 188, E. eccentricus; Fig. 189, E. extrinsecus; Fig. 190, E. falcatus; Fig. 191, E. furcillatus; Fig. 192, E. latus; Fig. 193, E. levilobus; Fig. 194, E. malotiensis; Fig. 195, E. matarei; Fig. 196, E. minutulus; Fig. 197, E. oriens; Fig. 198, E. recavus; Fig. 199, E. semialatus, with paired process; Fig. 200, E. semialatus, single process; Fig. 201, E. theroni; Fig. 202, E. tortuosus; Fig. 203, E. tubulus; Fig. 204, E. unispinus; Fig. 205, E. vulgaris.

FIGURES 206–232. Elginus species, male, style, Fig. 206, E. acutus; Fig. 207, E. bispinus; Fig. 208, E. cavatus; Fig. 209, E. contradens; Fig. 210, E. cultellus, curved aedeagus; Fig. 211, E. cultellus, straight aedeagus; Fig. 212, E. denticulatus; Fig. 213, E. dexteruncus; Fig. 214, E. eccentricus; Fig. 215, E. extrinsecus; Fig. 216, E. falcatus; Fig. 217, E. furcillatus; Fig. 218, E. latus; Fig. 219, E. levilobus; Fig. 220, E. malotiensis; Fig. 221, E. matarei; Fig. 222, E. minutulus; Fig. 223, E. oriens; Fig. 224, E. recavus; Fig. 225, E. saltus (Naudé); Fig. 226, E. semialatus, with paired process; Fig. 227, E. semialatus, single process; Fig. 228, E. theroni; Fig. 229, E. tortuosus; Fig. 230, E. tubulus; Fig. 231, E. unispinus; Fig. 232, E. vulgaris.

FIGURES 233–258. Elginus species, female, sternite VII. Fig. 233, E. bispinus; Fig. 234, E. cavatus; Fig. 235, E. contradens; Fig. 236, E. cultellus, associated males with curved aedeagus; Fig. 237, E. cultellus, associated males with straight aedeagus; Fig. 238, E. denticulatus; Fig. 239, E. dexteruncus variant; Fig. 240, E. dexteruncus variant; Fig. 241, E eccentricus; Fig. 242, E. extrinsecus; Fig. 243, E. falcatus; Fig. 244, E. furcillatus; Fig. 245, E. levilobus; Fig. 246, E. malotiensis; Fig. 247, E. matarei; Fig. 248, E. minutulus; Fig. 249, E. oriens; Fig. 250, E. oriens; Fig. 251, E. recavus; Fig. 252, E. saltus (Naudé); Fig. 253, E. semialatus; Fig. 254, E. theroni; Fig. 255, E. tortuosus; Fig. 256, E. tubulus; Fig. 257, E. unispinus; Fig. 258, E. vulgaris.

FIGURES 259–273. Elginus species, male, abdominal apodemes, Fig. 259, E. cultellus, curved aedeagus; Fig. 260, E. cultellus, straight aedeagus; Fig. 261, E. denticulatus; Fig. 262, E. eccentricus; Fig. 263, E. falcatus; Fig. 264, E. furcillatus; Fig. 265, E. malotiensis; Fig. 266, E. matarei; Fig. 267, E. minutulus; Fig. 268, E. oriens; Fig. 269, E. saltus (Naudé); Fig. 270, E. theroni; Fig. 271, E. tortuosus; Fig. 272, E. tubulus; Fig. 273, E. vulgaris.