Elginus tubulus, 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: 27

publication ID

http://doi.org/ 10.11646/zootaxa.2135.1.1

persistent identifier

http://treatment.plazi.org/id/03BD0C4B-FFA3-D161-FF46-FCE4FB892DBA

treatment provided by

Felipe

scientific name

Elginus tubulus
status

sp.n.

Elginus tubulus   sp.n.

( Figs 38, 39 View FIGURES 33–40 , 75 View FIGURES 51–77 , 102 View FIGURES 78–104 , 128 View FIGURES 105–130 , 154 View FIGURES 131–156 , 177 View FIGURES 157–179 , 203 View FIGURES 180–205 , 230 View FIGURES 206–232 , 256 View FIGURES 233–258 , 272 View FIGURES 259–273 )

Diagnosis. Aedeagal shaft straight or almost straight, not twisted. Style with apophysis short.

Etymology. Latin, diminutive for pipe, referring to the tubular nature of the aedeagal shaft, which is not twisted.

Colour. Male & female. Figs 38, 39 View FIGURES 33–40 .

Dimensions. Male (n = 25). Lengths: apex of vertex to apex of tegmina 3.4–3.7 mm, apex of vertex to apex of abdomen 3.0– 3.6 mm; vertex medially 0.6 mm; vertex laterally next to eye 0.4 mm; pronotum medially 0.4 mm; scutellum medially 0.3–0.4 mm. Maximum widths: head 1.0– 1.1 mm; pronotum 0.9 mm; scutellum 0.5 mm. Ocellus: diameter 26–31 µm; ocellocular distance 44–62 µm.

Abdominal apodemes. Male. Fig. 272 View FIGURES 259–273 .

Genital capsule. Male. Aedeagal shaft long, tubular, thin; shaft 3.0 times as long as dorsal arm; slightly S-curved in lateral view, almost straight in dorsal view; dorsal apodeme rounded in dorsal view; gonopore lateral ( Figs 75 View FIGURES 51–77 , 102 View FIGURES 78–104 ). Connective as in Fig. 128 View FIGURES 105–130 . Plate apex truncate, medial angle obtuse; medial margins separated by about 15°; setation uniseriate, variable (5–7) ( Fig. 154 View FIGURES 131–156 ). Pygofer lobe broadly rounded ( Figs 177 View FIGURES 157–179 , 203 View FIGURES 180–205 ). Style apophysis short, wide base, acute; near base of plate; apophysis 0.4 times as long as median arm ( Fig. 230 View FIGURES 206–232 ).

Dimensions. Female (n = 9). Lengths: apex of vertex to apex of tegmina 3.6–4.0 mm, apex of vertex to apex of abdomen 3.5–3.7 mm; vertex medially 0.6 mm; vertex laterally next to eye 0.4 mm; pronotum medially 0.4 mm; scutellum medially 0.4 mm. Maximum widths: head 1.1–1.2 mm; pronotum 0.9–1.0 mm; scutellum 0.5–0.6 mm. Ocellus: diameter 25–34 µm; ocellocular distance 47–59 µm.

Genital capsule. Female. Sternite VII with wide V-shaped notch, sometimes 2 or 4 pillars ( Fig. 256 View FIGURES 233–258 ). Third valvula with 3 longer setae. Second valvula smooth.

Material examined. Holotype male. South Africa, Eastern Cape. Kareedouw , 33°57ʹS 24°17ʹE, 14.xii.1974, J.G. Theron ( SANC) GoogleMaps   . Paratypes (25♂, 7♀). Eastern Cape   . 1♀, Pirrie Dam near Stutterheim ( Rooikransdam , N King Williams Town ), (32°45ʹS 27°20ʹE), 15.ii.1944 GoogleMaps   , J.O. Cooper; 2♂, Humansdorp , 34°01ʹS 24°45ʹE, 3.ii.1977 GoogleMaps   ; 7♂, 2♀, ibid. holotype GoogleMaps   ; 4♂, 2♀, Joubertina , 33°50ʹS 23°51ʹE, 1.ii.1977 GoogleMaps   ; 8♂, 3♀, Kareedouw , 3.ii.1977   ; 4♂, Misgund , 33°45ʹS 23°29ʹE, 20.i.1982 GoogleMaps   , all J.G. Theron ( BMNH, SANC, USIC).

Remarks. The structure of the aedeagus of Elginus tortuosus   and E. malotiensis   are similar to that of E. tubulus   , but E. tortuosus   has the shaft twisted and E. malotiensis   has a biramous dorsal apodeme. In both these species the style apophysis is long. Elginus oriens   has a similar structured aedeagus, but the shaft is shorter relative to the dorsal apodeme. Elginus tubulus   is found in the south western part of the Eastern Cape, E. tortuosus   occurs in the Western Cape and E. oriens   occurs in KwaZulu-Natal and north eastern parts of the Eastern Cape. The localities where E. tubulus   was found occur in a number of Fynbos Biome vegetation units that also contain many grass species as defined by Mucina and Rutherford (2006).

SANC

Agricultural Research Council-Plant Protection Research Institute

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Hemiptera

Family

Cicadellidae

Genus

Elginus