Scopogonalia euxloa Leal & Creão-Duarte, 2016

Leal, Afonso Henrique, Creão-Duarte, Antonio José & Mejdalani, Gabriel, 2016, Taxonomic review of Scopogonalia Young, 1977 (Insecta: Hemiptera: Cicadellidae: Cicadellini) with description of six new species, Journal of Natural History (J. Nat. Hist.) 50 (23), pp. 1513-1542 : 1536-1538

Scopogonalia euxloa Leal & Creão-Duarte sp. nov.

( Figure 10 )

Diagnosis

Green sharpshooters; head slightly produced anteriorly; fore wings with longitudinal veins dark; subgenital plates long and slender; aedeagus, in lateral view, curved ventrally, with pair of claw-like processes at apex; paraphyses rami thick with apices blunt.

Comment

The presence of long and slender subgenital plates is a synapomorphy of S. euxloa , S. plaumanni and S. splendida ; the slightly produced head, the aedeagus curved ventrally, and the presence of a pair of hook-shaped processes at its apex are symplesiomorphies of Scopogonalia present in these three species; the thick paraphyses rami are an autapomorphy of S. euxloa ( Leal 2014) .

Type locality. 25°50’S, 48°56 ʹ W; 790 m; Guaratuba , Paraná, Brazil .

Length. Male holotype, 5.9 mm; male paratypes, 5.7–6.0 mm; female paratype, 6.3 mm.

External morphology

Head ( Figure 10A ), in dorsal view, slightly produced anteriorly, median length of crown approximately 1/2 interocular width and 1/4 transocular width; anterior margin broadly rounded in dorsal view; ocelli aligned to anterior eye angles, each equidistant between adjacent anterior eye angle and median line of crown, situated at pair of slight concavities. Pronotum ( Figure 10A ) with width approximately equal to transocular width; with pair of concavities near anterior margin; lateral margins convergent anteriorly; posterior margin slightly concave; dorsopleural carinae complete and oblique. Fore wings ( Figure 10A ) coriaceous; membrane including all apical cells, extending forward along costal margin to basal half of wing. Hind legs with femoral setal formula 2:1:1; length of first tarsomere greater than combined length of two more distal ones.

Coloration

Ground colour of crown, anterior third of pronotum and mesonotum light green, remainder of dorsum dark green ( Figure 10A ). Crown with transverse dark brown stripe anterior to ocelli and a dark brown ark posterior to each ocellus ( Figure 10A ). Fore wings with dark brown stripes on and beside longitudinal veins ( Figure 10A ). Face and ventral body region pale yellow.

Male genitalia

Pygofer ( Figure 10B ), in lateral view, moderately produced posteriorly; dorsal margin approximately rectilinear; posteroventral margin broadly convex; apex narrowly rounded; macrosetae near apex and posteroventral margin, few along dorsal margin; slender process arising from ventral margin and extending posterodorsally as far as apex of pygofer. Subgenital plates ( Figure 10C ) subtriangular, long and slender, extending posteriorly almost as far as apex of pygofer, gradually tapered towards apex; macrosetae uniseriate along outer margin. Styles ( Figure 10D ) slender, without preapical lobe, not extending as far as apex of connective, extending approximately as far as basal half of subgenital plates. Connective ( Figure 10D ) Y-shaped, with well-produced dorsomedian carina. Aedeagus ( Figure 10E ), in lateral view, curved ventrally, with pair of claw-like processes at apex. Paraphyses ( Figure 10E ) paired, extending below shaft of aedeagus; rami thick, curved dorsally, apices blunt.

Female genitalia

Abdominal sternite VII ( Figure 10F ) longer than wide, lateral margins parallel, tapered near apex; posterior margin with concavity bearing small prominence. Valvulae II ( Figure 10G ) expanded beyond basal curvature and gradually narrowing towards acute apex; ventral and dorsal margins approximately parallel; preapical prominence distinct; primary teeth inclined trapezoid on basal and median portions ( Figure 11H ), becoming triangular at apex ( Figure11I ); first ones with posterior flat area, which becomes gradually smaller towards apex, where it is absent ( Figure11J ); denticles on all teeth and apical portion; ventral dentate apical portion greater than dorsal one ( Figure11J ).

Etymology

The species epithet, euxloa (from Greek: euxloos, fresh and green), refers to the green colour of the species.

Type material

Holotype: male, ‘ 25°50’S 790m \ 48°56 ʹ W XI/2003 \ Paraná-Brasil \ G.R.A. Melo col.’ ( DZUP) . Paratypes: six males and one female, same data as holotype ( DZUP).

Comparative notes

The new species is very similar externally to S. splendida and, to a certain extent, to S. plaumanni . It differs from these by the paraphyses rami which are thick with blunt apices ( Figure 10E ) and by the female abdominal sternite VII with the posterior margin concave ( Figure 10F ).

Figures

Figure 10. Scopogonalia euxloa sp. nov. (A) Dorsal habitus; (B) male pygofer, lateral view; (C) valve and subgenital plates, ventral view; (D) style, dorsal view; (E) anal tube, aedeagus and paraphyses, lateral view; (F) female abdominal sternite VII, ventral view; (G) valvula II of ovipositor, lateral view. Scale bars: A = 1.0 mm; D = 0.25 mm; others = 0.5 mm.

Figure 11. Scopogonalia osteiphera sp. nov. (A) Dorsal habitus; (B) male pygofer, lateral view; (C) valve and subgenital plates, ventral view; (D) styles and connective, dorsal view; (E) anal tube, aedeagus and paraphyses, lateral view; (F) abdominal sternite VII, ventral view; (G–J) valvula II of ovipositor: (G) lateral view; (H) tooth at median portion; (I) teeth at apical portion; (J) apex. PT, primary tooth; DT, denticle; DM, dorsal margin and VM, ventral margin of dentate apical area. Scale bars: A = 1.0 mm; B–G = 0.5 mm.