Hadroca alavittata, Stiller, 2023

Stiller, Michael, 2023, Revision of the South African leafhopper genus Hadroca Theron (Hemiptera, Auchenorrhyncha, Cicadellidae, Bonaspeiini), Deutsche Entomologische Zeitschrift 70 (1), pp. 13-54 : 13

publication ID	https://dx.doi.org/10.3897/dez.70.90851
publication LSID	lsid:zoobank.org:pub:6D8B46D4-35BE-4D27-8E83-114743405631
persistent identifier	https://treatment.plazi.org/id/4AC8DDF1-ADB2-4A95-92F2-25B8C5E28F0C
taxon LSID	lsid:zoobank.org:act:4AC8DDF1-ADB2-4A95-92F2-25B8C5E28F0C
treatment provided by	Deutsche Entomologische Zeitschrift by Pensoft
scientific name	Hadroca alavittata
status	sp. nov.

Treatment

Hadroca alavittata sp. nov.

Figs 19 View Figure 19. A–J -21 View Figure 21. A–X , 26E View Figure 26. A–E

Diagnosis.

Tegmina submacropterous, posterior margin rounded, light brown, oblique band medially.

Aedeagal shaft elongate, curvate, preatrium reduced.

Style apophysis in dorsal view curvate laterad, in lateral view short, apex with slight ventral curvature.

Subgenital apex extended beyond posterior margin of pygofer lobe.

Female sternite VII posterior margin sinuous.

Etymology.

Named in Latin for the brown V-shaped band across the tegmina, ala, wing, vittata, ribbon, band, gender feminine.

Color.

Male & female. Crown with paired, transverse, light brown marks apically, medially and subbasally, pronotum with some marks (Fig. 19A-E, H View Figure 19. A–J ). Face in male (Fig. 20C View Figure 20. A–J ) and female (Fig. 19J View Figure 19. A–J ) with 3-4 wide, dark brown arcs distally, face basally pale ochraceous, with amorphous small spots in clypellus and genae. Tegmina with brown veins and reticulation within cells, medially with oblique V-shaped, dark brown band across both tegmina (Figs 19A-F, H View Figure 19. A–J , 20A, B View Figure 20. A–J ).

Morphology.

Male. Tegmina. Submacropterous (Fig. 19B, D, E View Figure 19. A–J ), about as long as abdomen, (length/width 1.5-1.7, length 1.7-2.0 mm, width 1.1-1.2 mm); posterior margin broadly rounded (Fig. 19B, D, E View Figure 19. A–J ).

Hind wing. Reduced (Fig. 21P View Figure 21. A–X ), elongate (length/width 3.4-4.0, length 2.9-3.5 mm, width 0.8-1.0 mm).

Female. Tegmina. Submacropterous (Figs 18A, C, F, H View Figure 18. A–S , 20 View Figure 20. A–J , A, B), about as long as abdomen, (length/width 1.6-1.7, length 2.0-2.2 mm, width 1.2-1.3 mm); posterior margin broadly rounded (Fig. 19A, C, H View Figure 19. A–J ).

Hind wing. Reduced (Fig. 21P View Figure 21. A–X ), elongate (length/width 3.4-4.0, length 3.2-3.8 mm, width 0.9-1.0 mm).

Chaetotaxy. AV 7-9, IC 9-11.

Measurements.

Male. (n=39) Apex of crown to apex of tegmina 2.70-2.98 mm; apex of crown to apex of abdomen 2.82-3.24 mm; crown length 0.52-0.56 mm; crown length next to eye 0.35-0.38 mm; pronotum length 0.42-0.45 mm; head width 1.28-1.34 mm; pronotum width 1.23-1.30 mm; ocellus diameter 26-39 µm; interocular distance 98-121 µm; crown angle 99-103°; crown length/crown length next to eye 1.43-1.51; head width/pronotum width 1.02-1.05; ocellus diameter/interocular distance 0.23-0.36; crown length/pronotum length 1.19-1.29; pronotum length/pronotum width 0.33-0.35; crown length/head width 0.40-0.43; crown length/pronotum width 0.41-0.44; length to tegmina/length to abdomen 0.89-0.98.

Female. (n=32) Apex of crown to apex of tegmina 3.08-3.34 mm; apex of crown to apex of abdomen 3.53-4.08 mm; crown length 0.56-0.60 mm; crown length next to eye 0.38-0.41 mm; pronotum length 0.45-0.48 mm; head width 1.38-1.44 mm; pronotum width 1.33-1.40 mm; ocellus diameter 28-42 µm; interocular distance 110-130 µm; crown angle 99-103°; crown length/crown length next to eye 1.43-1.51; head width/pronotum width 1.02-1.05; ocellus diameter/interocular distance 0.23-0.36; crown length/pronotum length 1.21-1.29; pronotum length/pronotum width 0.33-0.35; crown length/head width 0.40-0.42; crown length/pronotum width 0.41-0.44; length to tegmina/length to abdomen 0.78-0.91.

Terminalia. Male.

Aedeagus. Shaft widely curvate, segment angle 127-134°, apically wider than medially, gonopore v-shaped anteropostriad (Fig. 21G, H View Figure 21. A–X ). Curvature depicted by segment defined by chord and height 127-134°. In lateral view, area 31-36 µm 2, perimeter 1.863-2.771 mm (Fig. 21K, L View Figure 21. A–X ); greatest straight line length from atrium to apex of dorsal apodeme/greatest straight line length from atrium to apex of shaft 0.31-0.46.

Style. Apophysis short (length apophysis/length greatest 0.1-0.2), curved or angled posterolaterad (Fig. 21M, N View Figure 21. A–X ), in lateral or dorsolateral or ventrolateral view (Fig. 21N View Figure 21. A–X ), required to distinguish ventrad curvature (as in Figs 8F, H, I View Figure 8. A–U 18L, 23H), length greatest/width greatest 1.7-1.9.

Connective. Longer than wide, stem longer or shorter than arms, (length stem/length arms 0.79-1.20), length greatest/width greatest 1.33-1.70 (Fig. 21I, J View Figure 21. A–X ).

Subgenital plate. Triangular, apex narrowly rounded, length/width 1.4-1.6, macrosetae absent, fine, narrow setae subapically dorsally and on ventrolateral margin; apex of subgenital plate extended beyond posterior margin of pygofer lobe, angle at apex of by trigonometry 31-36° (Figs 19G View Figure 19. A–J , 21D View Figure 21. A–X ).

Connective lobe. In lateral view shorter than greatest width (length/width 0.6-0.8), posterior margin acute. Macrosetae 46-86 µm long (Fig. 21C View Figure 21. A–X ).

Female.

Sternite VII. Transversely rectangular, posterior margin sinuous with wide, shallow notch (Figs 19I View Figure 19. A–J , 21Q, R View Figure 21. A–X ). Posterior margin sinuous with wide shallow or deep recess (lateral length/medial length 1.1-1.3), length/width 0.6-0.7, notch width/sternite VII greatest width 0.6-0.7.

Valvula 3. Macrosetae length 23-41 µm (Fig. 21U, X View Figure 21. A–X ).

Valvula 2. Apex serrate, fine teeth in trough, rounded teeth as in Figs 20H, I View Figure 20. A–J , 21W View Figure 21. A–X .

Valvula 1. Lanceolate (Fig. 21V View Figure 21. A–X ), sculpture strigate (Fig. 20E-G View Figure 20. A–J ).

Valvifer 2. Length/width 2.3-2.9 (Fig. 21S View Figure 21. A–X ). Sculpture as in other species, e.g., Figs 13V View Figure 13. A–V , 14I View Figure 14. A–J .

Valvifer 1. Length/width 2.2-2.8 (Figs 20D View Figure 20. A–J , 21T View Figure 21. A–X ), sculpture with microtrichia basally (Fig. 20J View Figure 20. A–J ).

Material examined.

Type locality. Holotype male, South Africa, Eastern Cape province, Cradock , -32.166, 25.616, 19 Jan. 1984, J.G. Theron leg., sweeping, Asparagus sp., Asparagaceae CCDL28305, SANC, BMNH, INHS. GoogleMaps

Type specimen.

Holotype male, glued to triangle card, pinned, with genitalia in microvial pinned to specimen. Original label "South Africa | Cradock | 19.i.1984 | J.G. Theron || Asparagus sp., Asparagaceae || SANC Pretoria | Database No. | CCDL28305".

Paratypes. 39♂♂, 29♀♀, total specimens 68.

Remarks.

The color pattern, especially of the head and tegmina, differentiated this species from the other species of Hadroca , although not always well developed. The face was also distinct. The male tergite X with the ventral paired process and the glabrous subgenital plate were unique. Least typical was the style with the compressed, laterally curved apophysis in dorsal view (Fig. 21M View Figure 21. A–X ), and the apex with minimal ventral curvature in lateral view (Fig. 21N View Figure 21. A–X ). The configuration of the aedeagus and its uniform sclerotization conforms to that of the species of Hadroca. It also appeared to be associated with wild asparagus. Modelled potential natural distribution is in Fig. 26E View Figure 26. A–E from eight records indicated by yellow squares.